AI-generatedKollam at a glance
- Best time
- Jan
- Warmest month
- Mar · 34°
- Warmest sea
- Apr · 29.9°
- Sunshine a year
- 2,320 h
- Rain a year
- 1,778 mm
- Climate
- Tropical
- Time zone
- UTC+5:30
- Elevation
- 13 m
Climate in Kollam
Kollam 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 34 °C, while July is the coolest at 30 °C. With around 2,320 hours of sunshine a year, Kollam is sunny; February is the sunniest month with 8.7 hours a day.
Holiday weather through the year
Best time to visit Kollam
The best time to visit Kollam is in January. For a beach holiday – sea from 21 °C, warm and mostly dry – go from December to March. From January to April it can get very hot, with highs of up to 34 °C. The rainy season is from May to October; the wettest month is June with 274 mm.
Kollam through the seasons
How the weather changes over the seasons, with averages for each.
Kollam in the dry season
Nov – Apr
Fair
- 32–34 °C by day
- Sea 29 °C
- 7.4 h of sun a day
- 62 rainy days in all
Kollam in the rainy season
May – Oct
Poor
- 30–33 °C by day
- Sea 28 °C
- 5.3 h of sun a day
- 152 rainy days in all
Which month for what?
Beach & swimming
Dec – Mar
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
No month
15–28 °C and not too much rain
Peak heat
Jan – Apr
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 Kollam for you.
Your best months: January – February
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Poor
Best time to visit: January
October is in the cyclone season Hurricane season
Where to go in OctoberSea temperature in October
Keep in mindFrequent rainStorm season
A typical day in October
- Morning, 08:00: about 27°
- Midday, 13:00: about 31°
- Afternoon, 16:00: about 31°
- Evening, 20:00: about 28°
- Night, 23:00: about 26°
06:1118:07
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 05:58–06:39 · evening 17:40–18:20
- Blue hour
- Morning 05:50–05:58 · evening 18:20–18:29
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 Kollam compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs stay at about 31° from start to end. The sea warms from 28° to 29°. The days get 0.2 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 31° | 31° |
| Night-time low | 24° | 24° |
| Sea | 28° | 29° |
| Daylight | 12.1 h | 11.8 h |
What is the weather like in Kollam in October?
In October, Kollam is hot: daytime highs average 31 °C, and even at night it stays warm at around 24 °C. The sea averages 28.2 °C – lovely and warm for swimming. Expect around 5.0 hours of sunshine a day. It is the rainy season: rain falls on about 24 days, totalling 231 mm. On about 27 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is not an ideal month for a holiday in Kollam.
More details for October
- Daylight
- 11 h 56 min06:11 – 18:07
- UV index
- 12 · extremeclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 14 km/haverage daily peakAll months
- Cloud cover
- 80 %on averageAll months
- Hot days
- 27 days30 °C or moreAll months
- Time zone
- UTC+5:30offset from UTC
How the score comes together
- Temperatureweight 50 %49 %
- Sunshineweight 20 %33 %
- Few rainy daysweight 30 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
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 Kollam
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
January has the better holiday weather in Kollam: score 60 against 31. In January, days are 2 °C warmer than in October. The sea is about as warm in both months. January has 21 fewer rainy days. The sun shines 3 hours longer a day in January.
| Month | October | January |
|---|---|---|
| Holiday weather score | 31 | 60better |
| Daytime high | 31° | 33° |
| Night-time low | 24° | 24° |
| Sea | 28.2° | 28.3° |
| Sunshine | 5.0 h | 8.4 hbetter |
| Rainy days | 24 | 3better |
| Rainfall | 231 mm | 18 mmbetter |
| Muggy days | 31 | 29better |
Based on the climate averages 1996–2025.
Kollam month by month
The typical weather for every month at a glance.
60January33° · Sea 28° · 8.4 h
In January, Kollam is very hot: daytime highs average 33 °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 shines for around 8.4 hours a day. Rain is rare: about 3 days bring 18 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 a good month for a holiday in Kollam.
Kollam in January57February34° · Sea 29° · 8.7 h
In February, Kollam is very hot: daytime highs average 34 °C, and even at night it stays warm at around 24 °C. The sea averages 28.7 °C – lovely and warm for swimming. The sun shines for around 8.7 hours a day. Rain is rare: about 4 days bring 16 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 so-so month for a holiday in Kollam.
Kollam in February42March34° · Sea 29° · 8.2 h
In March, Kollam is very hot: daytime highs average 34 °C, and even at night it stays warm at around 25 °C. The sea averages 29.4 °C – almost as warm as a bath. The sun shines for around 8.2 hours a day. Rain is frequent, with about 9 rainy days and 41 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 so-so month for a holiday in Kollam.
Kollam in March23April34° · Sea 30° · 7.2 h
In April, Kollam is very hot: daytime highs average 34 °C, and even at night it stays warm at around 26 °C. The sea averages 29.9 °C – almost as warm as a bath. The sun shines for around 7.2 hours a day. It rains often – on about 19 days, adding up to 104 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, April is not an ideal month for a holiday in Kollam.
Kollam in April24May33° · Sea 29° · 5.8 h
In May, Kollam is hot: daytime highs average 33 °C, and even at night it stays warm at around 26 °C. The sea averages 29.3 °C – almost as warm as a bath. Expect around 5.8 hours of sunshine a day. It is the rainy season: rain falls on about 25 days, totalling 237 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 not an ideal month for a holiday in Kollam.
Kollam in May34June31° · Sea 28° · 5.1 h
In June, Kollam is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 27.8 °C – lovely and warm for swimming. Expect around 5.1 hours of sunshine a day. It is the rainy season: rain falls on about 28 days, totalling 274 mm. On about 23 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, June is not an ideal month for a holiday in Kollam.
Kollam in June38July30° · Sea 26° · 5.0 h
In July, Kollam is hot: daytime highs average 30 °C, and even at night it stays warm at around 24 °C. The sea averages 26.4 °C – lovely and warm for swimming. Expect around 5.0 hours of sunshine a day. It is the rainy season: rain falls on about 28 days, totalling 226 mm. On about 16 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is not an ideal month for a holiday in Kollam.
Kollam in July38August30° · Sea 26° · 5.3 h
In August, Kollam is hot: daytime highs average 30 °C, and even at night it stays warm at around 24 °C. The sea averages 26.3 °C – lovely and warm for swimming. Expect around 5.3 hours of sunshine a day. It is the rainy season: rain falls on about 24 days, totalling 193 mm. On about 20 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is not an ideal month for a holiday in Kollam.
Kollam in August36September31° · Sea 27° · 5.6 h
In September, Kollam is hot: daytime highs average 31 °C, and even at night it stays warm at around 24 °C. The sea averages 27.1 °C – lovely and warm for swimming. Expect around 5.6 hours of sunshine a day. It is the rainy season: rain falls on about 23 days, totalling 190 mm. On about 23 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is not an ideal month for a holiday in Kollam.
Kollam in September31October31° · Sea 28° · 5.0 h
In October, Kollam is hot: daytime highs average 31 °C, and even at night it stays warm at around 24 °C. The sea averages 28.2 °C – lovely and warm for swimming. Expect around 5.0 hours of sunshine a day. It is the rainy season: rain falls on about 24 days, totalling 231 mm. On about 27 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is not an ideal month for a holiday in Kollam.
Kollam in October29November32° · Sea 29° · 5.2 h
In November, Kollam is hot: daytime highs average 32 °C, and even at night it stays warm at around 24 °C. The sea averages 28.8 °C – lovely and warm for swimming. Expect around 5.2 hours of sunshine a day. It rains often – on about 19 days, adding up to 176 mm. On about 27 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, November is not an ideal month for a holiday in Kollam.
Kollam in November51December32° · Sea 29° · 6.9 h
In December, Kollam is hot: daytime highs average 32 °C, and even at night it stays warm at around 24 °C. The sea averages 28.6 °C – lovely and warm for swimming. The sun shines for around 6.9 hours a day. Rain falls on about 8 days, adding up to 74 mm. 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 so-so month for a holiday in Kollam.
Kollam in DecemberClimate in detail
Year & climate table
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Kollam
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- 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 (24°), the warmest in April (26°). 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 362 days a year.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 60 | 33° | 24° | 28.3° | 8.4 h | 3 | 18 |
| FebruaryFeb | 57 | 34° | 24° | 28.7° | 8.7 h | 4 | 16 |
| MarchMar | 42 | 34° | 25° | 29.4° | 8.2 h | 9 | 41 |
| AprilApr | 23 | 34° | 26° | 29.9° | 7.2 h | 19 | 104 |
| MayMay | 24 | 33° | 26° | 29.3° | 5.8 h | 25 | 237 |
| JuneJun | 34 | 31° | 25° | 27.8° | 5.1 h | 28 | 274 |
| JulyJul | 38 | 30° | 24° | 26.4° | 5.0 h | 28 | 226 |
| AugustAug | 38 | 30° | 24° | 26.3° | 5.3 h | 24 | 193 |
| SeptemberSep | 36 | 31° | 24° | 27.1° | 5.6 h | 23 | 190 |
| OctoberOct | 31 | 31° | 24° | 28.2° | 5.0 h | 24 | 231 |
| NovemberNov | 29 | 32° | 24° | 28.8° | 5.2 h | 19 | 176 |
| DecemberDec | 51 | 32° | 24° | 28.6° | 6.9 h | 8 | 74 |
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
8.88° N, 76.58° E · 13 m · Asia/Kolkata
Sea temperature
Sea temperature in Kollam
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 27.3 – 29.0 °C
Swimming season: all year
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Kollam ranges from 26.3 °C in August to 29.9 °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.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 28.3° | 28.0° | 28.8° | warm |
| FebruaryFeb | 28.7° | 28.2° | 29.1° | warm |
| MarchMar | 29.4° | 29.0° | 29.9° | very warm |
| AprilApr | 29.9° | 29.3° | 30.7° | very warm |
| MayMay | 29.3° | 28.3° | 30.3° | very warm |
| JuneJun | 27.8° | 27.0° | 28.7° | warm |
| JulyJul | 26.4° | 25.8° | 27.4° | warm |
| AugustAug | 26.3° | 25.4° | 27.2° | warm |
| SeptemberSep | 27.1° | 26.4° | 28.0° | warm |
| OctoberOct | 28.2° | 27.3° | 29.0° | warm |
| NovemberNov | 28.8° | 28.1° | 29.4° | warm |
| DecemberDec | 28.6° | 28.3° | 29.1° | warm |
Sunshine
Sunshine hours in Kollam
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 5.0 of 11.9 hours of daylight in Kollam, 42 % 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 Kollam: 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.
In October, Kollam has about 24 rainy days with 231 mm of rain in total.
UV index
UV index in Kollam
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 14).
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 Kollam
How breezy and how cloudy Kollam 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.
In October, the wind in Kollam typically peaks at 14 km/h during the day: Beaufort 3, gentle breeze.
Breezy months for windsurfing and kiting
From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting: Jun – Aug.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 80 % of the sky over Kollam: mostly overcast, with about 5.0 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 Kollam
How often the day gets hot in Kollam (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Kollam has about 27 hot days, with an average daytime high of 31 °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 Kollam
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Kollam 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.
Kollam has its best school-holiday weather during the Christmas holidays (score 56) and its weakest during May half-term (score 26).
- 29
Easter holidays
Mar – Apr
Poor
- 34 °C by day
- Sea 30 °C
- 7.5 h of sun a day
- 16 rainy days a month
Keep in mind: Peak heat, Storm season
- 26
May half-term
May – Jun
Poor
- 32 °C by day
- Sea 29 °C
- 5.7 h of sun a day
- 26 rainy days a month
Keep in mind: Frequent rain, Storm season
- 38
Summer holidays
Jul – Aug
Poor
- 30 °C by day
- Sea 26 °C
- 5.2 h of sun a day
- 25 rainy days a month
Keep in mind: Frequent rain
- 31
October half-term
Oct
Poor
- 31 °C by day
- Sea 28 °C
- 5.0 h of sun a day
- 24 rainy days a month
Keep in mind: Frequent rain, Storm season
- 56
Christmas holidays
Dec – Jan
FairBest holidays
- 33 °C by day
- Sea 28 °C
- 7.7 h of sun a day
- 6 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 35 min
- Distance
- 8,340 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.
Good to know: India
- Currency
- Indian Rupee (INR)
- Languages
- English, Hindi
- Sockets
- Type C, D, M · 230 V
- Traffic
- Drives on the left
- Dialling code
- +91
- Emergency number
- 112
UK plugs need a travel adapter
Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.
Storm season
Kollam 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.
- January
- February
- March
- April: Season
- May: Peak
- June: Season
- July
- August
- September
- October: Season
- November: Peak
- 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 with another place
Kollam compared
Put Kollam side by side with another destination.
Kollam vs Varkala
In October the holiday weather in Kollam and Varkala is about equally good (score 31 vs 32). During the day it is about as warm in Varkala as in Kollam. The sea is about equally warm.
| in October | Kollam | Varkala |
|---|---|---|
| Holiday weather score | 31 | 32 |
| Daytime high | 31° | 31° |
| Sea | 28° | 28° |
| Sunshine | 5 h | 5 h |
| Rainy days | 24 | 24 |
| Best time | Jan | Dec – Mar |
Through the year
Best places in the country
India in October: the best places
In October, Kollam ranks 17 among the 31 nearest destinations in this country.
- Kanniyakumari31°28°74
- 2Thiruchendur32°28°72
- 3Varkala31°28°66
- 4Mahé32°29°63
- 5Rameswaram33°29°62
- 6Thalassery32°29°62
- 7Kodungallur32°29°60
- 8Kottayam32°28°59
- 17KollamThis page31°28°31
Places nearby
Near Kollam
Other destinations close by.
Places with a similar climate
Places with a climate like Kollam
Destinations whose weather through the year is closest to Kollam's – good alternatives.
Frequently asked questions about Kollam
When is the best time to visit Kollam?
The best time to visit Kollam is in January. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Kollam?
The sea temperature in Kollam ranges from 26.3 °C in August to 29.9 °C in April. At 20 °C and more, the sea is warm enough for swimming all year round.
Can you swim in Kollam in October?
Yes. In October the sea averages 28.2 °C – lovely and warm for swimming.
What is the warmest month in Kollam?
March is the warmest month, with average highs of 34 °C and nights around 25 °C. July is the coolest month at 30 °C.
When does it rain most in Kollam?
The rainy season is from May to October; the wettest month is June with 274 mm. The driest month is February with 16 mm.
How many hours of sunshine does Kollam get?
Kollam gets around 2,320 hours of sunshine a year. The sunniest month is February with 8.7 hours a day; in July there are 5.0 hours a day.
What time zone is Kollam in?
Kollam is on UTC+5:30 all year.
How long is the flight from London to Kollam?
A nonstop flight from London to Kollam takes about 10 h 35 min, for a straight-line distance of about 8,340 km.
When is cyclone season in Kollam?
Kollam 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 Kollam?
Kollam has its best school-holiday weather during the Christmas holidays (score 56) and its weakest during May half-term (score 26). Holiday ratings (0–100): Easter holidays 29, May half-term 26, summer holidays 38, October half-term 31, Christmas holidays 56.