Thakhek climate — normals and trends
Thakhek (Laos) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 24.9 °C and it receives 2,217 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is April (27.4 °C on average) and the coldest is January (21.0 °C). Rainfall peaks in August.
Thakhek averages 0 frost days, 203 hot days (≥ 30 °C) and 178 rainy days per year.
Thakhek has warmed by +1.5 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.4 °C (on 30 April 2024) and the coldest 1.8 °C (on 12 January 1955).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
ThakhekKhammouane Province
- coords
- 17.41°, 104.83°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.9°C
Average daily high
30.1°C
Average daily low
20.9°C
Annual rainfall
2,217mm
Sunshine / day
9.5h
Mean relative humidity
78%
Average peak wind
11.1km/h
Seasonal range
6.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
203 d/yr
Rainy days (≥ 1 mm)
178 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.2 °C
Average feels-like low
23.9 °C
Average peak gust
30.1 km/h
Tropical nights (≥ 20 °C)
245 d/yr
Solar radiation
17.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.55 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
40.4 °C
30 April 2024
Coldest day
1.8 °C
12 January 1955
Wettest day
230 mm
13 August 1956
Windiest day
37.3 km/h
1 September 1956
Strongest gust
99.4 km/h
30 August 1990
Hottest feels-like
45.5 °C
6 May 2023
Coldest feels-like
-1.1 °C
12 January 1955
Sunniest day
12.6 h
17 June 1948
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 27.9 °C | -0.3 °C | 0 mm | -7 mm |
| Feb | 30.9 °C | +0.9 °C | 0 mm | -15 mm |
| Mar | 32.6 °C | +0.5 °C | 19 mm | -22 mm |
| Apr | 34.2 °C | +1.3 °C | 52 mm | -30 mm |
| May | 32.4 °C | +1.1 °C | 174 mm | -74 mm |
| Jun | 31.3 °C | +1.0 °C | 358 mm | -42 mm |
| Jul | 29.5 °C | -0.4 °C | 528 mm | +86 mm |
| Aug | 30.9 °C | +1.4 °C | 396 mm | -107 mm |
| Sep | 30.8 °C | +1.0 °C | 373 mm | +40 mm |
| Oct | 31.0 °C | +0.8 °C | 79 mm | -40 mm |
| Nov | 28.5 °C | -1.0 °C | 57 mm | +35 mm |
| Dec | 30.1 °C | +2.2 °C | 0 mm | -4 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Thakhek?
Thakhek has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.9 °C and it receives 2,217 mm of precipitation per year.
What is the hottest day ever recorded in Thakhek?
The hottest day measured in Thakhek between 1940 and 2025 was 30 April 2024, reaching 40.4 °C.
What is the coldest day in Thakhek?
The coldest day measured in Thakhek between 1940 and 2025 was 12 January 1955, at 1.8 °C.
Does it snow in Thakhek?
Almost never: Thakhek sees virtually no snow, with about 0 frost days per year.
Has the climate of Thakhek warmed?
Yes: Thakhek warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Thakhek?
The wettest day measured in Thakhek between 1940 and 2025 was 13 August 1956, with 230 mm of rain in 24 hours.
What was the windiest day in Thakhek?
The windiest day measured in Thakhek between 1940 and 2025 was 1 September 1956, with winds reaching 37.3 km/h.
What is the warmest month in Thakhek?
The warmest month in Thakhek is April (27.4 °C on average); the coldest is January (21.0 °C).
How much does it rain in Thakhek?
Thakhek receives on average 2,217 mm of precipitation per year, spread over about 178 rainy days.
Is it sunny in Thakhek?
Thakhek gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.
Are there tropical nights in Thakhek?
Yes: Thakhek has on average 245 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Thakhek?
In Thakhek, between 1940 and 2025, the highest apparent temperature reached 45.5 °C on 6 May 2023, and the lowest was -1.1 °C on 12 January 1955.
Compare Thakhek with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Thakhek