Ko Chang in Winter
In winter (December, January and February), Ko Chang sees average daytime highs around 28°C and overnight lows near 26°C, with 73 mm of rain over about 17 wet days across the season. It is the coldest season of the year and the driest season of the year.
Across winter, daytime highs hold fairly steady around 28°C. The sky is clear or mostly clear about 48% of the time across winter, and the air most often feels oppressive.
Winter is Ko Chang's best season of the year to visit on our travel score. Ko Chang 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 Ko Chang's year-round climate.
- Avg daytime high
- 28°C
- coldest season of the year
- Avg overnight low
- 26°C
- Rainfall
- 73 mm
- 17 wet days
- Avg wind
- 13 km/h
- Travel score
- 6.9
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Ko Chang in Winter
Across winter, daytime highs hold fairly steady around 28°C.
A typical winter day in Ko Chang reaches about 28°C and drops to 26°C overnight. The warmest of the three months is December, the coolest December.
How winter really feels in Ko Chang
Once humidity and wind are folded in, winter brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
winter sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Ko Chang weather by month
How the three winter months (December, January and February) 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 | 28° / 25° | 28 | 6.3 | 11.4 | 7.0 |
| Feb | 28° / 26° | 26 | 6.5 | 11.6 | 7.1 |
| Mar | 28° / 27° | 71 | 13.2 | 11.9 | 5.6 |
| Apr | 29° / 27° | 115 | 17.1 | 12.3 | 4.5 |
| May | 29° / 27° | 448 | 27.9 | 12.5 | 3.1 |
| Jun | 29° / 27° | 595 | 28.6 | 12.7 | 3.0 |
| Jul | 28° / 26° | 612 | 29.9 | 12.6 | 3.0 |
| Aug | 28° / 26° | 547 | 29.4 | 12.4 | 3.1 |
| Sep | 28° / 26° | 537 | 28.6 | 12.1 | 3.3 |
| Oct | 28° / 26° | 278 | 23.1 | 11.7 | 4.0 |
| Nov | 29° / 26° | 51 | 8.2 | 11.4 | 5.7 |
| Dec | 29° / 25° | 18 | 3.8 | 11.3 | 6.6 |
Cloud cover in Winter
The sky is clear or mostly clear about 48% of the time across winter.
Chance of precipitation in Winter
Ko Chang gets around 73 mm of rain over 17 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 13 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 11 h 18 min in early December to 11 h 42 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 5.4 kWh/m².
Hazard calendar for Ko Chang
In winter, Ko Chang overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Ko Chang sits in the Pacific typhoon belt; the season peaks July–October.
Ko Chang's monsoon runs May–October, when most of the year's rain falls.
Is winter a good time to visit Ko Chang?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a reasonable time to visit Ko Chang for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Ko Chang in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Ko Chang sees daytime highs around 28°C and nights near 26°C. Pack light clothes. Worth having: sun protection. About 17 days see rain.
Sea temperature near Ko Chang in Winter
The nearest coast averages about 28°C across winter — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 21 km away) is warmest in May at about 31°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 | 31 | 30 | 29 | 29 | 29 | 29 | 29 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Tropical |
| Feb | 28 | Tropical |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 31 | Tropical |
| Jun | 30 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 29 | Tropical |
UV index in Ko Chang in Winter
Clear-sky midday UV across winter averages around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Ko Chang peaks around August 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 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) | 10 | 10 | 13 | 13 | 12 | 12 | 12 | 14 | 12 | 11 | 9 | 9 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 10 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 14 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 9 | Very high |
Air quality in Ko Chang in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Ko Chang is worst in February — around 25 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (November, 10 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) | 20 | 25 | 20 | 16 | 12 | 12 | 14 | 12 | 11 | 11 | 10 | 11 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 20 | Moderate |
| Feb | 25 | Moderate |
| Mar | 20 | Moderate |
| Apr | 16 | Moderate |
| May | 12 | Moderate |
| Jun | 12 | Moderate |
| Jul | 14 | Moderate |
| Aug | 12 | Good |
| Sep | 11 | Good |
| Oct | 11 | Good |
| Nov | 10 | Good |
| Dec | 11 | Good |
Where is Ko Chang?
Ko Chang sits at 12.0°N, 102.3°E, 0 m above sea level, in Thailand. The nearest listed city is Laem Ngop, 17 km away.
Topography around Ko Chang
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ko Chang.
Within 3 km, the terrain around Ko Chang has large variations in elevation — a maximum elevation change of 647 m around an average of 114 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 735 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,628 m.
The land around Ko Chang is covered by trees (67%) and water (29%) within 3 km, water (74%) and trees (25%) within 16 km, and water (55%) and trees (38%) 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 Ko Chang (12.0451°, 102.3003°, elevation 0 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.