Chumphon in Fall
In fall (September, October and November), Chumphon sees average daytime highs around 28°C and overnight lows near 26°C, with 600 mm of rain over about 66 wet days across the season. It is the 3rd-warmest season and the wettest season of the year.
Across fall, daytime highs hold fairly steady around 28°C. The sky is clear or mostly clear about 13% of the time across fall, and the air most often feels oppressive.
Fall is Chumphon's 3rd-best season to visit on our travel score. Chumphon has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Chumphon's year-round climate.
- Avg daytime high
- 28°C
- 3rd-warmest season
- Avg overnight low
- 26°C
- Rainfall
- 600 mm
- 66 wet days
- Avg wind
- 15 km/h
- Travel score
- 4.3
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Chumphon in Fall
Across fall, daytime highs hold fairly steady around 28°C.
A typical fall day in Chumphon reaches about 28°C and drops to 26°C overnight. The warmest of the three months is September, the coolest October.
How fall really feels in Chumphon
Once humidity and wind are folded in, fall brings about 28 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Chumphon weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 27° / 25° | 68 | 8.5 | 11.5 | 6.9 |
| Feb | 28° / 25° | 32 | 6.5 | 11.7 | 7.0 |
| Mar | 29° / 26° | 84 | 9.7 | 11.9 | 5.9 |
| Apr | 30° / 27° | 87 | 13.2 | 12.2 | 4.8 |
| May | 30° / 27° | 124 | 21.7 | 12.5 | 3.7 |
| Jun | 29° / 26° | 112 | 20.3 | 12.6 | 3.8 |
| Jul | 29° / 26° | 120 | 21.3 | 12.6 | 3.9 |
| Aug | 29° / 26° | 129 | 21.8 | 12.3 | 3.9 |
| Sep | 28° / 26° | 160 | 23.8 | 12.1 | 3.7 |
| Oct | 28° / 25° | 243 | 25.1 | 11.8 | 4.1 |
| Nov | 28° / 26° | 198 | 17.2 | 11.5 | 5.2 |
| Dec | 27° / 25° | 94 | 8.8 | 11.4 | 6.6 |
Cloud cover in Fall
The sky is clear or mostly clear about 13% of the time across fall.
Chance of precipitation in Fall
Chumphon gets around 600 mm of rain over 66 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 15 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 12 min in early September to 11 h 24 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 4.3 kWh/m².
Hazard calendar for Chumphon
In fall, Chumphon overlaps its cyclone and rainy season season. The full year is below, with each hazard's peak months called out.
Chumphon sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.
Chumphon's rainy season runs May–November, when most of the year's rain falls.
Is fall a good time to visit Chumphon?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Chumphon for sightseeing.
What to pack for Chumphon in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Chumphon sees daytime highs around 28°C and nights near 26°C. Pack light clothes and rain gear. About 66 days see rain.
Sea temperature near Chumphon in Fall
The nearest coast averages about 29°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 25 km away) is warmest in May at about 30°C and coldest in January near 28°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 28 | 28 | 29 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 28 | 28 |
| Comfort | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Warm |
| Feb | 28 | Tropical |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 28 | Tropical |
| Dec | 28 | Warm |
UV index in Chumphon in Fall
Clear-sky midday UV across fall averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Chumphon peaks around August 20 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 9 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 9 | 11 | 13 | 13 | 12 | 12 | 12 | 14 | 13 | 11 | 10 | 9 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 9 | Very high |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 14 | Extreme |
| Sep | 13 | Extreme |
| Oct | 11 | Extreme |
| Nov | 10 | Very high |
| Dec | 9 | Very high |
Air quality in Chumphon in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Chumphon is worst in March — around 21 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (September, 12 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 19 | 20 | 21 | 20 | 15 | 13 | 14 | 12 | 12 | 12 | 14 | 14 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 19 | Moderate |
| Feb | 20 | Moderate |
| Mar | 21 | Moderate |
| Apr | 20 | Moderate |
| May | 15 | Moderate |
| Jun | 13 | Moderate |
| Jul | 14 | Moderate |
| Aug | 12 | Good |
| Sep | 12 | Good |
| Oct | 12 | Good |
| Nov | 14 | Moderate |
| Dec | 14 | Moderate |
Where is Chumphon?
Chumphon sits at 10.5°N, 99.2°E, 8 m above sea level, in Thailand. The nearest listed city is Lang Suan, 62 km away.
Topography around Chumphon
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Chumphon.
Within 3 km, the terrain around Chumphon has only modest variations in elevation — a maximum elevation change of 34 m around an average of 7 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 306 m; within 80 km, large variations in elevation — a maximum elevation change of 1,039 m.
The land around Chumphon is covered by trees (64%) and artificial surfaces (23%) within 3 km, trees (68%) and water (20%) within 16 km, and trees (54%) and water (43%) within 80 km.
Thailand travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type A / B / C
- 230 V · 50 Hz
- Prices
- ≈ 31% of US
- price level, 2025
- GDP per capita
- $8,057
- 2025
- Happiness
- 6.3 / 10
- World Happiness, 2025
- Homicide rate
- 4.8
- per 100k, 2011
- Road deaths
- 32.2
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Very low
- EF EPI 402
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Chumphon (10.4957°, 99.1797°, elevation 8 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.