Tha Khaek in Winter
In winter (December, January and February), Tha Khaek sees average daytime highs around 29°C and overnight lows near 17°C, with 24 mm of rain over about 5 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 29°C. The sky is clear or mostly clear about 64% of the time across winter, and the air most often feels humid.
Winter is Tha Khaek's best season of the year to visit on our travel score. For the whole year in context, see Tha Khaek's year-round climate.
- Avg daytime high
- 29°C
- coldest season of the year
- Avg overnight low
- 17°C
- Rainfall
- 24 mm
- 5 wet days
- Avg wind
- 9 km/h
- Travel score
- 7.1
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Tha Khaek in Winter
Across winter, daytime highs hold fairly steady around 29°C.
A typical winter day in Tha Khaek reaches about 29°C and drops to 17°C overnight. The warmest of the three months is February, the coolest January.
How winter really feels in Tha Khaek
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.
Tha Khaek 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° / 16° | 6 | 1.5 | 11.1 | 7.4 |
| Feb | 30° / 18° | 13 | 2.5 | 11.4 | 6.2 |
| Mar | 32° / 21° | 34 | 5.6 | 11.9 | 4.6 |
| Apr | 33° / 23° | 69 | 11.5 | 12.4 | 3.4 |
| May | 32° / 24° | 253 | 23.7 | 12.8 | 2.7 |
| Jun | 31° / 25° | 378 | 27.6 | 13 | 2.5 |
| Jul | 30° / 24° | 490 | 29.4 | 12.9 | 2.7 |
| Aug | 30° / 24° | 493 | 29.9 | 12.6 | 2.6 |
| Sep | 30° / 24° | 318 | 24.7 | 12.1 | 3.0 |
| Oct | 31° / 22° | 111 | 11.4 | 11.6 | 4.5 |
| Nov | 30° / 19° | 20 | 2.6 | 11.2 | 6.0 |
| Dec | 28° / 16° | 6 | 1.2 | 11 | 7.6 |
Cloud cover in Winter
The sky is clear or mostly clear about 64% of the time across winter.
Chance of precipitation in Winter
Tha Khaek gets around 24 mm of rain over 5 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 9 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 11 hours in early December to 11 h 36 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 5.0 kWh/m².
Hazard calendar for Tha Khaek
None of Tha Khaek's seasonal hazards peak in winter. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Tha Khaek's monsoon runs May–September, when most of the year's rain falls.
Is winter a good time to visit Tha Khaek?
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 one of the better times to visit Tha Khaek for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Tha Khaek in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Tha Khaek sees daytime highs around 29°C and nights near 17°C. Pack light clothes. Worth having: sun protection. About 5 days see rain.
UV index in Tha Khaek in Winter
Clear-sky midday UV across winter averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Tha Khaek peaks around July 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 8 (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 | 10 | 11 | 10 | 12 | 12 | 13 | 13 | 11 | 10 | 8 | 7 |
| Level | Very high | Very high | Extreme | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 9 | Very high |
| Feb | 10 | Very high |
| Mar | 11 | Extreme |
| Apr | 10 | Very high |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 13 | Extreme |
| Aug | 13 | Extreme |
| Sep | 11 | Extreme |
| Oct | 10 | Extreme |
| Nov | 8 | Very high |
| Dec | 7 | Very high |
Air quality in Tha Khaek 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 Tha Khaek is worst in March — around 84 µg/m³ PM2.5 (unhealthy), about 5.6× the cleanest month (November, 15 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 | 39 | 84 | 49 | 23 | 19 | 18 | 19 | 17 | 18 | 15 | 17 |
| Level | Moderate | Poor | Unhealthy | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 19 | Moderate |
| Feb | 39 | Poor |
| Mar | 84 | Unhealthy |
| Apr | 49 | Poor |
| May | 23 | Moderate |
| Jun | 19 | Moderate |
| Jul | 18 | Moderate |
| Aug | 19 | Moderate |
| Sep | 17 | Moderate |
| Oct | 18 | Moderate |
| Nov | 15 | Moderate |
| Dec | 17 | Moderate |
Where is Tha Khaek?
Tha Khaek sits at 17.4°N, 104.8°E, 176 m above sea level, in Laos. The nearest listed city is Nakhon Phanom, 6.0 km away.
Topography around Tha Khaek
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tha Khaek.
Within 3 km, the terrain around Tha Khaek has only modest variations in elevation — a maximum elevation change of 57 m around an average of 158 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 577 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,404 m.
The land around Tha Khaek is covered by trees (49%) and cropland (23%) within 3 km, trees (61%) and cropland (23%) within 16 km, and trees (65%) and cropland (27%) within 80 km.
Laos travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B / C / E / F
- 230 V · 50 Hz
- Prices
- ≈ 23% of US
- price level, 2025
- GDP per capita
- $2,325
- 2025
- Happiness
- 5.5 / 10
- World Happiness, 2025
- Safe drinking water
- 35%
- of population, 2024
- Road deaths
- 17.9
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- English
- Low
- EF EPI 461
- 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 Tha Khaek (17.4103°, 104.8307°, elevation 176 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.