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Chumphon weather & best time to visit

Sun, sea & sand

Chumphon at a glance

Best time
Dec – Mar
Warmest month
Apr · 35°
Warmest sea
May · 30.3°
Sunshine a year
2,110 h
Rain a year
1,634 mm
Climate
Tropical
Time zone
UTC+7
Elevation
8 m

Climate in Chumphon

Chumphon has a tropical climate: it is warm all year round, and the seasons differ mainly in how much rain falls. April is the warmest month with average highs of 35 °C, while December is the coolest at 30 °C. With around 2,110 hours of sunshine a year, Chumphon is moderately sunny; February is the sunniest month with 7.6 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Chumphon

The best time to visit Chumphon is from December to March. For a beach holiday – sea from 21 °C, warm and mostly dry – go from December to March. From March to May it can get very hot, with highs of up to 35 °C. The rainy season is from July to October; the wettest month is October with 259 mm.

Chumphon through the seasons

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

Chumphon in the dry season

Nov – Jun

72

Good

  • 30–35 °C by day
  • Sea 29 °C
  • 6.3 h of sun a day
  • 111 rainy days in all

Chumphon in the rainy season

Jul – Oct

61

Good

  • 31–32 °C by day
  • Sea 29 °C
  • 4.7 h of sun a day
  • 102 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

Mar – May

Highs of 33 °C or more

Rainy months

Jul – Oct

Rainy season or more than 12 rainy days

Find your perfect month

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

Swimming in the sea
Sunshine
Little rain

Your best months: December – February

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

Your holiday weather, at a glance

Weather in October

Weather in October

63

Holiday weather in October

Good

Best time to visit: December – March

Keep in mindFrequent rain

A typical day in October

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

06:1218:06

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 17:38–18:19
Blue hour
Morning 05:50–05:59 · evening 18:19–18:27

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 Chumphon compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 32° at the start of the month to 31° at the end. The days get 0.3 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high32°31°
Night-time low24°24°
Sea29°29°
Daylight12.0 h11.8 h

What is the weather like in Chumphon in October?

In October, Chumphon is hot: daytime highs average 31 °C, and even at night it stays warm at around 24 °C. The sea averages 29.0 °C – almost as warm as a bath. Expect around 4.6 hours of sunshine a day. It is the rainy season: rain falls on about 26 days, totalling 259 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 a good month for a holiday in Chumphon.

More details for October

Daylight
11 h 55 min06:12 – 18:06
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
85 %on averageAll months
Hot days
27 days30 °C or moreAll months
Time zone
UTC+7offset from UTC

How the score comes together

  • Temperatureweight 35 %94 %
  • Seaweight 25 %100 %
  • Sunshineweight 20 %27 %
  • 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 Chumphon

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 Chumphon: score 87 against 63. Daytime highs are about the same. The sea is 2 °C cooler in January. January has 19 fewer rainy days. The sun shines 2 hours longer a day in January.

October vs January, Chumphon
MonthOctoberJanuary
Holiday weather score6387better
Daytime high31°31°
Night-time low24°22°
Sea29.0°27.5°
Sunshine4.6 h6.4 hbetter
Rainy days267better
Rainfall259 mm50 mmbetter
Muggy days3130better

Based on the climate averages 1996–2025.

Chumphon month by month

The typical weather for every month at a glance.

87January31° · Sea 28° · 6.4 h

In January, Chumphon is hot: daytime highs average 31 °C, and even at night it stays warm at around 22 °C. The sea averages 27.5 °C – lovely and warm for swimming. Expect around 6.4 hours of sunshine a day. Rain falls on about 7 days, adding up to 50 mm. On about 26 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, January is an excellent month for a holiday in Chumphon.

Chumphon in January
85February32° · Sea 28° · 7.6 h

In February, Chumphon is hot: daytime highs average 32 °C, and even at night it stays warm at around 23 °C. The sea averages 28.2 °C – lovely and warm for swimming. The sun shines for around 7.6 hours a day. Rain falls on about 7 days, adding up to 35 mm. On about 27 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, February is an excellent month for a holiday in Chumphon.

Chumphon in February
75March34° · Sea 29° · 7.6 h

In March, Chumphon is very hot: daytime highs average 34 °C, and even at night it stays warm at around 24 °C. The sea averages 29.2 °C – almost as warm as a bath. The sun shines for around 7.6 hours a day. Rain is frequent, with about 10 rainy days and 66 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, March is a good month for a holiday in Chumphon.

Chumphon in March
63April35° · Sea 30° · 7.5 h

In April, Chumphon 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 7.5 hours a day. It rains often – on about 14 days, adding up to 85 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, April is a good month for a holiday in Chumphon.

Chumphon in April
56May34° · Sea 30° · 6.0 h

In May, Chumphon is very hot: daytime highs average 34 °C, and even at night it stays warm at around 25 °C. The sea averages 30.3 °C – almost as warm as a bath. Expect around 6.0 hours of sunshine a day. It rains often – on about 24 days, adding up to 159 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, May is a so-so month for a holiday in Chumphon.

Chumphon in May
56June33° · Sea 30° · 4.5 h

In June, Chumphon is hot: daytime highs average 33 °C, and even at night it stays warm at around 25 °C. The sea averages 29.7 °C – almost as warm as a bath. Expect around 4.5 hours of sunshine a day. It rains often – on about 23 days, adding up to 157 mm. On about 29 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, June is a so-so month for a holiday in Chumphon.

Chumphon in June
60July32° · Sea 29° · 4.6 h

In July, Chumphon is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 29.3 °C – almost as warm as a bath. Expect around 4.6 hours of sunshine a day. It is the rainy season: rain falls on about 25 days, totalling 184 mm. On about 29 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 Chumphon.

Chumphon in July
60August32° · Sea 29° · 4.7 h

In August, Chumphon is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 29.1 °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 25 days, totalling 171 mm. On about 29 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 Chumphon.

Chumphon in August
62September32° · Sea 29° · 5.0 h

In September, Chumphon is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 29.0 °C – almost as warm as a bath. Expect around 5.0 hours of sunshine a day. It is the rainy season: rain falls on about 26 days, totalling 234 mm. On about 27 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 Chumphon.

Chumphon in September
63October31° · Sea 29° · 4.6 h

In October, Chumphon is hot: daytime highs average 31 °C, and even at night it stays warm at around 24 °C. The sea averages 29.0 °C – almost as warm as a bath. Expect around 4.6 hours of sunshine a day. It is the rainy season: rain falls on about 26 days, totalling 259 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 a good month for a holiday in Chumphon.

Chumphon in October
69November31° · Sea 29° · 5.3 h

In November, Chumphon is hot: daytime highs average 31 °C, and even at night it stays warm at around 24 °C. The sea averages 28.6 °C – lovely and warm for swimming. Expect around 5.3 hours of sunshine a day. It rains often – on about 17 days, adding up to 159 mm. On about 23 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, November is a good month for a holiday in Chumphon.

Chumphon in November
83December30° · Sea 28° · 5.8 h

In December, Chumphon is hot: daytime highs average 30 °C, and even at night it stays warm at around 22 °C. The sea averages 27.8 °C – lovely and warm for swimming. Expect around 5.8 hours of sunshine a day. Rain falls on about 8 days, adding up to 76 mm. On about 21 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, December is an excellent month for a holiday in Chumphon.

Chumphon in December

Climate in detail

Year & climate table

Climate through the year

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

Best time to visit

Nights and sleep in Chumphon

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 May (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 362 days a year.

Temperatures through the year

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

OctoberDay 31°Night 24°Sea 29°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan8731°22°27.5°6.4 h750
FebruaryFeb8532°23°28.2°7.6 h735
MarchMar7534°24°29.2°7.6 h1066
AprilApr6335°25°30.1°7.5 h1485
MayMay5634°25°30.3°6.0 h24159
JuneJun5633°25°29.7°4.5 h23157
JulyJul6032°25°29.3°4.6 h25184
AugustAug6032°25°29.1°4.7 h25171
SeptemberSep6232°25°29.0°5.0 h26234
OctoberOct6331°24°29.0°4.6 h26259
NovemberNov6931°24°28.6°5.3 h17159
DecemberDec8330°22°27.8°5.8 h876

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

10.50° N, 99.18° E · 8 m · Asia/Bangkok

Sea temperature
Swimming calendar

Sea temperature in Chumphon

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

Sea in October29.0°Cvery warm

8 in 10 years: 28.4 – 29.5 °C

Swimming season: all year

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 29.0°8 in 10 years 28.4° – 29.5°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Chumphon ranges from 27.5 °C in January to 30.3 °C in May. At 20 °C and more, the sea is warm enough for swimming all year round.

The sea warms up slowly: it is warmest in May, while the air already peaks in April. The sea temperature varies from year to year: in May, eight out of ten years were between 29.5 and 31.1 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan27.5°26.8°28.8°warm
FebruaryFeb28.2°27.4°28.8°warm
MarchMar29.2°28.5°29.8°very warm
AprilApr30.1°29.4°30.8°very warm
MayMay30.3°29.5°31.1°very warm
JuneJun29.7°29.1°30.5°very warm
JulyJul29.3°28.8°29.7°very warm
AugustAug29.1°28.6°29.6°very warm
SeptemberSep29.0°28.3°29.5°very warm
OctoberOct29.0°28.4°29.5°very warm
NovemberNov28.6°27.9°29.4°warm
DecemberDec27.8°27.0°28.7°warm
Sunshine
Sunshine

Sunshine hours in Chumphon

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

Per year
2,110 hours
Sunniest month
Feb · 7.6 h a day
Least sunshine
Jun · 4.5 h a day
OctoberSunshine 4.6 hDaylight 11.9 hShare of daylight 39 %
SunshineDaylight

In October, the sun shines for about 4.6 of 11.9 hours of daylight in Chumphon, 39 % 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

Rain in Chumphon: 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
1,634 mm on 213 days
Wettest month
Oct · 259 mm
Driest month
Feb · 35 mm
OctoberRainy days 26Rainfall 259 mm

In October, Chumphon has about 26 rainy days with 259 mm of rain in total.

UV index
Sun protection

UV index in Chumphon

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 & clouds

Wind and clouds in Chumphon

How breezy and how cloudy Chumphon 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
18 km/h · gentle breeze
Windiest month
Dec · 21 km/h
Calmest month
Apr · 14 km/h
OctoberWind 14 km/hBeaufort 3
20
WindBeaufort 4

In October, the wind in Chumphon 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: Jul – Aug, Dec.

Clouds

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

Year average
73 % · mostly cloudy
Clearest month
Feb · 47 %
Cloudiest month
Aug · 91 %
OctoberCloud cover 85 %Sunshine 4.6 h

In October, cloud covers on average 85 % of the sky over Chumphon: mostly overcast, with about 4.6 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 & humidity

Heat and humidity in Chumphon

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

Hot days a year
328 days
Hottest month
Apr · 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+) 27Daytime high 31 °C

In October, Chumphon 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 Chumphon

Weather for your travel dates

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

Chumphon 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.

Chumphon has its best school-holiday weather during the Christmas holidays (score 85) and its weakest during May half-term (score 56).

  • Easter holidays

    Mar – Apr

    67

    Good

    • 34 °C by day
    • Sea 30 °C
    • 7.5 h of sun a day
    • 13 rainy days a month

    Keep in mind: Peak heat

  • May half-term

    May – Jun

    56

    Fair

    • 34 °C by day
    • Sea 30 °C
    • 5.7 h of sun a day
    • 24 rainy days a month

    Keep in mind: Peak heat

  • Summer holidays

    Jul – Aug

    60

    Good

    • 32 °C by day
    • Sea 29 °C
    • 4.7 h of sun a day
    • 25 rainy days a month

    Keep in mind: Frequent rain

  • October half-term

    Oct

    63

    Good

    • 31 °C by day
    • Sea 29 °C
    • 4.6 h of sun a day
    • 26 rainy days a month

    Keep in mind: Frequent rain

  • Christmas holidays

    Dec – Jan

    85

    ExcellentBest holidays

    • 31 °C by day
    • Sea 28 °C
    • 6.1 h of sun a day
    • 8 rainy days a month

    Good for: Beach & swimming

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 12 h 15 min
Distance
9,750 km
Time zone
UTC+7
Jet lag
About 6 days (6 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.

Most routes need a change of planes, which adds time.

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

Good to know: Thailand

Currency
Thai Baht (THB)
Language
Thai
Sockets
Type A, B, C, F · 220 V
Traffic
Drives on the left
Dialling code
+66

UK plugs need a travel adapter

Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.

Compare & alternatives

Compare with another place
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Chumphon compared

Put Chumphon side by side with another destination.

Nearby:
Compare with home:

Chumphon vs Ranong

In October the holiday weather in Chumphon and Ranong is about equally good (score 63 vs 65). During the day it is about as warm in Ranong as in Chumphon. The sea is about equally warm.

Chumphon vs Ranong, in October
in OctoberChumphonRanong
Holiday weather score6365
Daytime high31°31°
Sea29°29°
Sunshine5 h5 h
Rainy days2628
Best timeDec – MarDec – Mar

Through the year

OctoberChumphon 31°Ranong 31°
ChumphonRanong
Go to Ranong
Best places in the country
Ranking

Thailand in October: the best places

In October, Chumphon ranks 11 among the 31 nearest destinations in this country.

  1. Pattaya31°30°67
  2. 2Koh Tao30°29°66
  3. 3Ko Pha-ngan28°29°66
  4. 4Koh Samui31°29°66
  5. 5Hua Hin31°29°66
  6. 6Ko Kut31°29°66
  7. 7Ranong31°29°65
  8. 8Laem Chabang32°30°65
  9. 11ChumphonThis page31°29°63
All destinations: Thailand
Places nearby

Near Chumphon

Other destinations close by.

Places with a similar climate

Places with a climate like Chumphon

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

  1. 80 % similar62Prachuap Khiri KhanThailand32°29°Best time: Dec – Feb
  2. 78 % similar64Koh LantaThailand31°29°Best time: Dec – Mar
  3. 77 % similar29Si RachaThailand32°30°Best time: Dec – Feb
  4. 77 % similar66Hua HinThailand31°29°Best time: Nov – Mar

Frequently asked questions about Chumphon

When is the best time to visit Chumphon?

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

How warm is the sea in Chumphon?

The sea temperature in Chumphon ranges from 27.5 °C in January to 30.3 °C in May. At 20 °C and more, the sea is warm enough for swimming all year round.

Can you swim in Chumphon in October?

Yes. In October the sea averages 29.0 °C – almost as warm as a bath.

What is the warmest month in Chumphon?

April is the warmest month, with average highs of 35 °C and nights around 25 °C. December is the coolest month at 30 °C.

When does it rain most in Chumphon?

The rainy season is from July to October; the wettest month is October with 259 mm. The driest month is February with 35 mm.

How many hours of sunshine does Chumphon get?

Chumphon gets around 2,110 hours of sunshine a year. The sunniest month is February with 7.6 hours a day; in June there are 4.5 hours a day.

What time zone is Chumphon in?

Chumphon is on UTC+7 all year.

How long is the flight from London to Chumphon?

A nonstop flight from London to Chumphon takes about 12 h 15 min, for a straight-line distance of about 9,750 km. Most routes need a change of planes, which adds time.

Which school holidays are best for Chumphon?

Chumphon has its best school-holiday weather during the Christmas holidays (score 85) and its weakest during May half-term (score 56). Holiday ratings (0–100): Easter holidays 67, May half-term 56, summer holidays 60, October half-term 63, Christmas holidays 85.