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Kottayam weather & best time to visit

Sun, sea & sand

Kottayam at a glance

Best time
Dec – Feb
Warmest month
Mar · 35°
Warmest sea
Apr · 30.1°
Sunshine a year
2,030 h
Rain a year
2,960 mm
Climate
Tropical
Time zone
UTC+5:30
Elevation
20 m

Climate in Kottayam

Kottayam has a tropical climate: it is warm all year round, and the seasons differ mainly in how much rain falls. March is the warmest month with average highs of 35 °C, while July is the coolest at 30 °C. With around 2,030 hours of sunshine a year, Kottayam is moderately sunny; February is the sunniest month with 8.1 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Kottayam

The best time to visit Kottayam is from December to February. For a beach holiday – sea from 21 °C, warm and mostly dry – go from December to February. From December to May it can get very hot, with highs of up to 35 °C. The rainy season is from May to October; the wettest month is June with 508 mm.

Kottayam through the seasons

How the weather changes over the seasons, with averages for each.

Kottayam in the dry season

Nov – Apr

68

Good

  • 33–35 °C by day
  • Sea 29 °C
  • 7.1 h of sun a day
  • 79 rainy days in all

Kottayam in the rainy season

May – Oct

60

Good

  • 30–34 °C by day
  • Sea 28 °C
  • 4.1 h of sun a day
  • 173 rainy days in all

Which month for what?

Beach & swimming

Dec – Feb

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

No month

15–28 °C and not too much rain

Peak heat

Dec – May

Highs of 33 °C or more

Rainy months

May – Oct

Rainy season or more than 12 rainy days

Find your perfect month

Tell us what you like and we rate every month in Kottayam for you.

Swimming in the sea
Sunshine
Little rain

Your best months: January – February, July

Based on the climate averages; tap a month to see its details.

Your holiday weather, at a glance

Weather in October

Weather in October

59

Holiday weather in October

Fair

Best time to visit: December – February

October is in the cyclone season Hurricane season

Keep in mindFrequent rainStorm season

A typical day in October

  1. Morning, 08:00: about 27°
  2. Midday, 13:00: about 32°
  3. Afternoon, 16:00: about 31°
  4. Evening, 20:00: about 28°
  5. Night, 23:00: about 26°

06:1218:07

Warm enough for a T-shirt in the evening.

Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.

Light for photos in October

Golden hour
Morning 05:59–06:40 · evening 17:39–18:20
Blue hour
Morning 05:51–05:59 · evening 18:20–18:28

Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.

October in Kottayam compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs stay at about 32° from start to end. The sea warms from 28° to 29°. The days get 0.2 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high32°32°
Night-time low24°24°
Sea28°29°
Daylight12.0 h11.8 h

What is the weather like in Kottayam in October?

In October, Kottayam is hot: daytime highs average 32 °C, and even at night it stays warm at around 24 °C. The sea averages 28.4 °C – lovely and warm for swimming. Expect around 4.3 hours of sunshine a day. It is the rainy season: rain falls on about 27 days, totalling 318 mm. On about 28 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is a so-so month for a holiday in Kottayam.

More details for October

Daylight
11 h 56 min06:12 – 18:07
UV index
12 · extremeclear sky, noon (estimate)All months
Muggy days
31 daysdew point 18 °C or moreAll months
Wind
10 km/haverage daily peakAll months
Cloud cover
83 %on averageAll months
Hot days
28 days30 °C or moreAll months
Time zone
UTC+5:30offset from UTC

How the score comes together

  • Temperatureweight 35 %86 %
  • Seaweight 25 %100 %
  • Sunshineweight 20 %22 %
  • Few rainy daysweight 20 %0 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in October

  • Swimwear
  • Sunscreen
  • Sunglasses & sun hat
  • Light, breathable clothes
  • Water bottle – drink plenty
  • Insect repellent
  • Rain jacket or umbrella

Compare two months in Kottayam

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs

January has the better holiday weather in Kottayam: score 83 against 59. In January, days are 2 °C warmer than in October. The sea is about as warm in both months. January has 23 fewer rainy days. The sun shines 4 hours longer a day in January.

October vs January, Kottayam
MonthOctoberJanuary
Holiday weather score5983better
Daytime high32°34°
Night-time low24°22°
Sea28.4°28.4°
Sunshine4.3 h8.0 hbetter
Rainy days274better
Rainfall318 mm24 mmbetter
Muggy days3131

Based on the climate averages 1996–2025.

Kottayam month by month

The typical weather for every month at a glance.

83January34° · Sea 28° · 8.0 h

In January, Kottayam is very hot: daytime highs average 34 °C, and even at night it stays warm at around 22 °C. The sea averages 28.4 °C – lovely and warm for swimming. The sun shines for around 8.0 hours a day. Rain is rare: about 4 days bring 24 mm in total. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, January is an excellent month for a holiday in Kottayam.

Kottayam in January
77February35° · Sea 29° · 8.1 h

In February, Kottayam is very hot: daytime highs average 35 °C, and even at night it stays warm at around 23 °C. The sea averages 28.8 °C – lovely and warm for swimming. The sun shines for around 8.1 hours a day. Rain is rare: about 5 days bring 21 mm in total. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, February is a good month for a holiday in Kottayam.

Kottayam in February
61March35° · Sea 30° · 7.8 h

In March, Kottayam is very hot: daytime highs average 35 °C, and even at night it stays warm at around 24 °C. The sea averages 29.6 °C – almost as warm as a bath. The sun shines for around 7.8 hours a day. Rain is frequent, with about 14 rainy days and 63 mm in total. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, March is a good month for a holiday in Kottayam.

Kottayam in March
53April35° · Sea 30° · 6.7 h

In April, Kottayam is very hot: daytime highs average 35 °C, and even at night it stays warm at around 25 °C. The sea averages 30.1 °C – almost as warm as a bath. The sun shines for around 6.7 hours a day. It rains often – on about 26 days, adding up to 167 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, April is a so-so month for a holiday in Kottayam.

Kottayam in April
53May34° · Sea 30° · 4.7 h

In May, Kottayam is very hot: daytime highs average 34 °C, and even at night it stays warm at around 25 °C. The sea averages 29.6 °C – almost as warm as a bath. Expect around 4.7 hours of sunshine a day. It is the rainy season: rain falls on about 29 days, totalling 365 mm. On about 30 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, May is a so-so month for a holiday in Kottayam.

Kottayam in May
61June31° · Sea 28° · 3.5 h

In June, Kottayam is hot: daytime highs average 31 °C, and even at night it stays warm at around 24 °C. The sea averages 28.3 °C – lovely and warm for swimming. The sun is scarce, with only about 3.5 hours a day. It is the rainy season: rain falls on about 30 days, totalling 508 mm. On about 24 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, June is a good month for a holiday in Kottayam.

Kottayam in June
61July30° · Sea 27° · 3.4 h

In July, Kottayam is hot: daytime highs average 30 °C, and even at night it stays warm at around 23 °C. The sea averages 26.8 °C – lovely and warm for swimming. The sun is scarce, with only about 3.4 hours a day. It is the rainy season: rain falls on about 30 days, totalling 480 mm. On about 19 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is a good month for a holiday in Kottayam.

Kottayam in July
63August31° · Sea 27° · 3.9 h

In August, Kottayam is hot: daytime highs average 31 °C, and even at night it stays warm at around 24 °C. The sea averages 26.6 °C – lovely and warm for swimming. The sun is scarce, with only about 3.9 hours a day. It is the rainy season: rain falls on about 30 days, totalling 395 mm. On about 23 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is a good month for a holiday in Kottayam.

Kottayam in August
62September32° · Sea 27° · 4.5 h

In September, Kottayam is hot: daytime highs average 32 °C, and even at night it stays warm at around 24 °C. The sea averages 27.4 °C – lovely and warm for swimming. Expect around 4.5 hours of sunshine a day. It is the rainy season: rain falls on about 28 days, totalling 321 mm. On about 26 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is a good month for a holiday in Kottayam.

Kottayam in September
59October32° · Sea 28° · 4.3 h

In October, Kottayam is hot: daytime highs average 32 °C, and even at night it stays warm at around 24 °C. The sea averages 28.4 °C – lovely and warm for swimming. Expect around 4.3 hours of sunshine a day. It is the rainy season: rain falls on about 27 days, totalling 318 mm. On about 28 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is a so-so month for a holiday in Kottayam.

Kottayam in October
59November33° · Sea 29° · 5.1 h

In November, Kottayam is hot: daytime highs average 33 °C, and even at night it stays warm at around 24 °C. The sea averages 28.9 °C – lovely and warm for swimming. Expect around 5.1 hours of sunshine a day. It rains often – on about 21 days, adding up to 219 mm. On about 29 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, November is a so-so month for a holiday in Kottayam.

Kottayam in November
72December33° · Sea 29° · 6.7 h

In December, Kottayam is very hot: daytime highs average 33 °C, and even at night it stays warm at around 23 °C. The sea averages 28.7 °C – lovely and warm for swimming. The sun shines for around 6.7 hours a day. Rain is frequent, with about 10 rainy days and 80 mm in total. On about 30 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, December is a good month for a holiday in Kottayam.

Kottayam in December

Climate in detail

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in Kottayam

How warm the nights get in each month, from the mean night-time low. Tap a month for details.

  • Warm 20–24°
  • Hot 24° and more
  • muggy month (15+ muggy days)

HotOctober: nights around 24°. Hot nights: air conditioning makes sleeping much easier. Muggy on about 31 days (dew point 18 °C or more).

The coolest nights are in January (22°), the warmest in April (25°). Nights stay tropical all year (20 °C and more), so a room with air conditioning or at least a fan pays off. It is muggy (dew point 18 °C or more) all year, on about 365 days a year.

Temperatures through the year

Average daytime high, night-time low and sea temperature per month.

OctoberDay 32°Night 24°Sea 28°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan8334°22°28.4°8.0 h424
FebruaryFeb7735°23°28.8°8.1 h521
MarchMar6135°24°29.6°7.8 h1463
AprilApr5335°25°30.1°6.7 h26167
MayMay5334°25°29.6°4.7 h29365
JuneJun6131°24°28.3°3.5 h30508
JulyJul6130°23°26.8°3.4 h30480
AugustAug6331°24°26.6°3.9 h30395
SeptemberSep6232°24°27.4°4.5 h28321
OctoberOct5932°24°28.4°4.3 h27318
NovemberNov5933°24°28.9°5.1 h21219
DecemberDec7233°23°28.7°6.7 h1080

Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences

9.59° N, 76.52° E · 20 m · Asia/Kolkata

Swimming calendar

Sea temperature in Kottayam

Monthly sea surface temperature with the range of cooler and warmer years.

Sea in October28.4°Cwarm

8 in 10 years: 27.7 – 29.1 °C

Swimming season: all year

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 28.4°8 in 10 years 27.7° – 29.1°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Kottayam ranges from 26.6 °C in August to 30.1 °C in April. At 20 °C and more, the sea is warm enough for swimming all year round.

The sea warms up slowly: it is warmest in April, while the air already peaks in March. The sea temperature varies from year to year: in April, eight out of ten years were between 29.3 and 30.7 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan28.4°28.1°28.9°warm
FebruaryFeb28.8°28.3°29.3°warm
MarchMar29.6°29.1°30.0°very warm
AprilApr30.1°29.3°30.7°very warm
MayMay29.6°28.6°30.6°very warm
JuneJun28.3°27.4°29.2°warm
JulyJul26.8°26.1°27.5°warm
AugustAug26.6°25.7°27.4°warm
SeptemberSep27.4°26.8°28.2°warm
OctoberOct28.4°27.7°29.1°warm
NovemberNov28.9°28.3°29.4°warm
DecemberDec28.7°28.4°29.2°warm
Sunshine

Sunshine hours in Kottayam

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
2,030 hours
Sunniest month
Feb · 8.1 h a day
Least sunshine
Jul · 3.4 h a day
OctoberSunshine 4.3 hDaylight 11.9 hShare of daylight 36 %
SunshineDaylight

In October, the sun shines for about 4.3 of 11.9 hours of daylight in Kottayam, 36 % of the daylight hours.

Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.

Rain

Rain in Kottayam: rainy days and rainfall

A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.

Per year
2,960 mm on 253 days
Wettest month
Jun · 508 mm
Driest month
Feb · 21 mm
OctoberRainy days 27Rainfall 318 mm

In October, Kottayam has about 27 rainy days with 318 mm of rain in total.

Sun protection

UV index in Kottayam

How strong the sun is at noon, month by month, and how quickly unprotected skin burns.

Clear-sky UV in October
12 · extremeAvoid the midday sun; SPF 50+, covering clothes, hat and sunglasses.

The sun is strongest in April (UV 13).

Minutes until sunburn in October

Very fair skin
about 10 min
Fair skin
about 15 min
Light brown skin
about 20 min
Olive skin
about 25 min

Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.

Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.

Wind & clouds

Wind and clouds in Kottayam

How breezy and how cloudy Kottayam is through the year. Tap a month to select it on the whole page.

Wind

Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.

Year average
12 km/h · gentle breeze
Windiest month
Jul · 15 km/h
Calmest month
Nov · 8 km/h
OctoberWind 10 km/hBeaufort 2
20
WindBeaufort 4

In October, the wind in Kottayam typically peaks at 10 km/h during the day: Beaufort 2, light breeze or less.

Breezy months for windsurfing and kiting

The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.

Clouds

Average share of the sky covered by cloud, day and night.

Year average
71 % · mostly cloudy
Clearest month
Feb · 39 %
Cloudiest month
Jul · 94 %
OctoberCloud cover 83 %Sunshine 4.3 h

In October, cloud covers on average 83 % of the sky over Kottayam: mostly overcast, with about 4.3 hours of sunshine a day.

Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.

Heat & humidity

Heat and humidity in Kottayam

How often the day gets hot in Kottayam (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.

Hot days a year
329 days
Hottest month
Mar · 35 °C
Hot months
All year

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 28Daytime high 32 °C

In October, Kottayam has about 28 hot days, with an average daytime high of 32 °C: hot and muggy. Plan outdoor activities for the morning and evening, drink a lot and take breaks in the cool.

Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year

Planning a trip to Kottayam

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

Kottayam in the school holidays

How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.

Kottayam has its best school-holiday weather during the Christmas holidays (score 78) and its weakest during the Easter holidays (score 55).

  • Easter holidays

    Mar – Apr

    55

    Fair

    • 35 °C by day
    • Sea 30 °C
    • 7.0 h of sun a day
    • 22 rainy days a month

    Keep in mind: Peak heat, Storm season

  • May half-term

    May – Jun

    55

    Fair

    • 33 °C by day
    • Sea 29 °C
    • 4.5 h of sun a day
    • 29 rainy days a month

    Keep in mind: Peak heat, Frequent rain, Storm season

  • Summer holidays

    Jul – Aug

    62

    Good

    • 31 °C by day
    • Sea 27 °C
    • 3.7 h of sun a day
    • 30 rainy days a month

    Keep in mind: Frequent rain

  • October half-term

    Oct

    59

    Fair

    • 32 °C by day
    • Sea 28 °C
    • 4.3 h of sun a day
    • 27 rainy days a month

    Keep in mind: Frequent rain, Storm season

  • Christmas holidays

    Dec – Jan

    78

    GoodBest holidays

    • 34 °C by day
    • Sea 29 °C
    • 7.4 h of sun a day
    • 7 rainy days a month

    Good for: Beach & swimming

    Keep in mind: Peak heat, Storm season

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 10 h 30 min
Distance
8,270 km
Time zone
UTC+5:30
Jet lag
About 5 days (5 h east)

Rule of thumb for flying east: for a few days before, go to bed and get up a little earlier, and get plenty of morning light at your destination.

Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.

Storm season

Kottayam lies in an area that cyclones from the northern Indian Ocean can reach. The cyclone season runs from April to June and from October to December, with most storms in May and in November. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.

  1. January
  2. February
  3. March
  4. April: Season
  5. May: Peak
  6. June: Season
  7. July
  8. August
  9. September
  10. October: Season
  11. November: Peak
  12. December: Season

Official season dates of the regional warning centres (NOAA, JMA, IMD, Météo-France, BoM, Fiji Meteorological Service); not a forecast.

Compare & alternatives

Compare

Kottayam compared

Put Kottayam side by side with another destination.

Nearby:
Compare with home:

Kottayam vs Alappuzha

In October the holiday weather in Kottayam and Alappuzha is about equally good (score 59 vs 58). During the day it is about as warm in Alappuzha as in Kottayam. The sea is about equally warm.

Kottayam vs Alappuzha, in October
in OctoberKottayamAlappuzha
Holiday weather score5958
Daytime high32°32°
Sea28°28°
Sunshine4 h4 h
Rainy days2727
Best timeDec – FebJan

Through the year

OctoberKottayam 32°Alappuzha 32°
KottayamAlappuzha
Go to Alappuzha
Ranking

India in October: the best places

In October, Kottayam ranks 8 among the 31 nearest destinations in this country.

  1. Kanniyakumari31°28°74
  2. 2Thiruchendur32°28°72
  3. 3Varkala31°28°66
  4. 4Mahé32°29°62
  5. 5Thalassery32°29°62
  6. 6Rameswaram33°29°62
  7. 7Kodungallur32°29°60
  8. 8KottayamThis page32°28°59
All destinations: India

Near Kottayam

Other destinations close by.

Places with a climate like Kottayam

Destinations whose weather through the year is closest to Kottayam's – good alternatives.

  1. 74 % similar66NegomboSri Lanka31°28°Best time: Jun – Sep, Dec – Mar
  2. 74 % similar63Khao LakThailand31°29°Best time: Dec – Mar
  3. 73 % similar59Patong, PhuketThailand32°29°Best time: Nov – Mar
  4. 73 % similar60PhuketThailand32°29°Best time: Nov – Mar

Frequently asked questions about Kottayam

When is the best time to visit Kottayam?

The best time to visit Kottayam is from December to February. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

How warm is the sea in Kottayam?

The sea temperature in Kottayam ranges from 26.6 °C in August to 30.1 °C in April. At 20 °C and more, the sea is warm enough for swimming all year round.

Can you swim in Kottayam in October?

Yes. In October the sea averages 28.4 °C – lovely and warm for swimming.

What is the warmest month in Kottayam?

March is the warmest month, with average highs of 35 °C and nights around 24 °C. July is the coolest month at 30 °C.

When does it rain most in Kottayam?

The rainy season is from May to October; the wettest month is June with 508 mm. The driest month is February with 21 mm.

How many hours of sunshine does Kottayam get?

Kottayam gets around 2,030 hours of sunshine a year. The sunniest month is February with 8.1 hours a day; in July there are 3.4 hours a day.

What time zone is Kottayam in?

Kottayam is on UTC+5:30 all year.

How long is the flight from London to Kottayam?

A nonstop flight from London to Kottayam takes about 10 h 30 min, for a straight-line distance of about 8,270 km.

When is cyclone season in Kottayam?

Kottayam lies in an area that cyclones from the northern Indian Ocean can reach. The cyclone season runs from April to June and from October to December, with most storms in May and in November. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.

Which school holidays are best for Kottayam?

Kottayam has its best school-holiday weather during the Christmas holidays (score 78) and its weakest during the Easter holidays (score 55). Holiday ratings (0–100): Easter holidays 55, May half-term 55, summer holidays 62, October half-term 59, Christmas holidays 78.