Sadao in Winter
In winter (December, January and February), Sadao sees average daytime highs around 31°C and overnight lows near 23°C, with 302 mm of rain over about 34 wet days across the season. It is the 3rd-warmest season and the driest season of the year.
Over the season highs climb from about 30°C in early December to 34°C by late February. The sky is clear or mostly clear about 15% of the time across winter, and the air most often feels oppressive.
Winter is Sadao's best season of the year to visit on our travel score. For the whole year in context, see Sadao's year-round climate.
- Avg daytime high
- 31°C
- 3rd-warmest season
- Avg overnight low
- 23°C
- Rainfall
- 302 mm
- 34 wet days
- Avg wind
- 10 km/h
- Travel score
- 3.9
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Sadao in Winter
Over the season highs climb from about 30°C in early December to 34°C by late February.
A typical winter day in Sadao reaches about 31°C and drops to 23°C overnight. The warmest of the three months is February, the coolest January.
How winter really feels in Sadao
Once humidity and wind are folded in, winter brings about 90 days that feel above 32°C and 0 that feel at or below 0°C.
The story in winter is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Sadao 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 | 31° / 23° | 68 | 9.7 | 11.7 | 4.3 |
| Feb | 33° / 23° | 38 | 6.1 | 11.8 | 3.6 |
| Mar | 34° / 24° | 102 | 13 | 12 | 2.7 |
| Apr | 34° / 24° | 147 | 20.1 | 12.1 | 2.3 |
| May | 33° / 25° | 161 | 24 | 12.3 | 2.3 |
| Jun | 32° / 25° | 120 | 20.6 | 12.4 | 2.6 |
| Jul | 32° / 24° | 126 | 20.9 | 12.3 | 2.8 |
| Aug | 32° / 24° | 139 | 22 | 12.2 | 2.7 |
| Sep | 31° / 24° | 178 | 25 | 12 | 2.6 |
| Oct | 31° / 24° | 274 | 28.5 | 11.9 | 2.5 |
| Nov | 30° / 24° | 279 | 26.1 | 11.7 | 2.9 |
| Dec | 30° / 23° | 196 | 18.4 | 11.6 | 3.9 |
Cloud cover in Winter
The sky is clear or mostly clear about 15% of the time across winter.
Chance of precipitation in Winter
Sadao gets around 302 mm of rain over 34 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 10 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 11 h 36 min in early December to 11 h 54 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 5.1 kWh/m².
Hazard calendar for Sadao
In winter, Sadao overlaps its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.
Sadao sits in the Pacific typhoon belt; the season peaks July–October.
Sadao's rainy season runs July–December, when most of the year's rain falls.
Is winter a good time to visit Sadao?
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 weaker month for outdoor sightseeing in Sadao. The water and warmth also suit a beach or pool day.
What to pack for Sadao in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Sadao sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 34 days see rain.
Sea temperature near Sadao in Winter
The nearest coast averages about 29°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 44 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 | 29 | 30 | 30 | 31 | 31 | 30 | 30 | 30 | 29 | 29 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Tropical |
| Feb | 29 | Tropical |
| Mar | 30 | Tropical |
| Apr | 30 | Tropical |
| May | 31 | Tropical |
| Jun | 31 | Tropical |
| Jul | 30 | Tropical |
| Aug | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 29 | Tropical |
UV index in Sadao in Winter
Clear-sky midday UV across winter averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Sadao peaks around February 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 21 at about 11 (extreme).
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) | 11 | 14 | 13 | 13 | 12 | 12 | 11 | 12 | 13 | 12 | 11 | 11 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 14 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 12 | Extreme |
| Sep | 13 | Extreme |
| Oct | 12 | Extreme |
| Nov | 11 | Extreme |
| Dec | 11 | Extreme |
Air quality in Sadao 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 Sadao is worst in October — around 27 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 19 | 17 | 21 | 27 | 26 | 27 | 26 | 24 | 26 | 27 | 23 | 18 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 19 | Moderate |
| Feb | 17 | Moderate |
| Mar | 21 | Moderate |
| Apr | 27 | Moderate |
| May | 26 | Moderate |
| Jun | 27 | Moderate |
| Jul | 26 | Moderate |
| Aug | 24 | Moderate |
| Sep | 26 | Moderate |
| Oct | 27 | Moderate |
| Nov | 23 | Moderate |
| Dec | 18 | Moderate |
Where is Sadao?
Sadao sits at 6.6°N, 100.4°E, 50 m above sea level, in Thailand. The nearest listed city is Changloon, 23 km away.
Topography around Sadao
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sadao.
Within 3 km, the terrain around Sadao has only modest variations in elevation — a maximum elevation change of 184 m around an average of 49 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 343 m; within 80 km, large variations in elevation — a maximum elevation change of 994 m.
The land around Sadao is covered by trees (78%) within 3 km, trees (84%) within 16 km, and trees (62%) and water (25%) 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 Sadao (6.6388°, 100.4234°, elevation 50 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.