Sekong climate — normals and trends
Sekong (Laos) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 23.4 °C and it receives 2,020 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 (25.4 °C on average) and the coldest is December (20.9 °C). Rainfall peaks in August.
Sekong averages 0 frost days, 113 hot days (≥ 30 °C) and 218 rainy days per year.
Sekong has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The hottest day of the period reached 37.0 °C (on 26 March 2024) and the coldest 5.1 °C (on 15 January 1963).
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
SekongXékong
- coords
- 15.35°, 106.72°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
23.4°C
Average daily high
28.7°C
Average daily low
19.6°C
Annual rainfall
2,020mm
Sunshine / day
9.6h
Mean relative humidity
80%
Average peak wind
7.1km/h
Seasonal range
4.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
113 d/yr
Rainy days (≥ 1 mm)
218 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.8 °C
Average feels-like low
22.3 °C
Average peak gust
27.6 km/h
Tropical nights (≥ 20 °C)
219 d/yr
Solar radiation
17.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.75 · 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
37.0 °C
26 March 2024
Coldest day
5.1 °C
15 January 1963
Wettest day
192 mm
28 September 2022
Windiest day
27.8 km/h
29 September 2009
Strongest gust
95.0 km/h
29 September 2009
Hottest feels-like
42.9 °C
17 May 2010
Coldest feels-like
2.7 °C
15 January 1963
Sunniest day
12.5 h
9 June 1959
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 | 28.3 °C | +0.2 °C | 0 mm | -8 mm |
| Feb | 31.0 °C | +1.1 °C | 7 mm | -14 mm |
| Mar | 32.2 °C | +0.9 °C | 35 mm | -36 mm |
| Apr | 33.6 °C | +2.3 °C | 75 mm | -61 mm |
| May | 31.1 °C | +1.1 °C | 270 mm | +30 mm |
| Jun | 28.7 °C | +0.3 °C | 366 mm | +78 mm |
| Jul | 28.0 °C | +0.2 °C | 365 mm | +57 mm |
| Aug | 28.8 °C | +1.4 °C | 270 mm | -77 mm |
| Sep | 27.9 °C | +0.4 °C | 414 mm | +78 mm |
| Oct | 28.4 °C | +0.6 °C | 298 mm | +114 mm |
| Nov | 27.2 °C | -0.5 °C | 206 mm | +138 mm |
| Dec | 29.3 °C | +2.2 °C | 5 mm | -11 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 Sekong?
Sekong has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 23.4 °C and it receives 2,020 mm of precipitation per year.
What is the hottest day ever recorded in Sekong?
The hottest day measured in Sekong between 1940 and 2025 was 26 March 2024, reaching 37.0 °C.
What is the coldest day in Sekong?
The coldest day measured in Sekong between 1940 and 2025 was 15 January 1963, at 5.1 °C.
Does it snow in Sekong?
Almost never: Sekong sees virtually no snow, with about 0 frost days per year.
Has the climate of Sekong warmed?
Yes: Sekong warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sekong?
The wettest day measured in Sekong between 1940 and 2025 was 28 September 2022, with 192 mm of rain in 24 hours.
What was the windiest day in Sekong?
The windiest day measured in Sekong between 1940 and 2025 was 29 September 2009, with winds reaching 27.8 km/h.
What is the warmest month in Sekong?
The warmest month in Sekong is April (25.4 °C on average); the coldest is December (20.9 °C).
How much does it rain in Sekong?
Sekong receives on average 2,020 mm of precipitation per year, spread over about 218 rainy days.
Is it sunny in Sekong?
Sekong gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.
Are there tropical nights in Sekong?
Yes: Sekong has on average 219 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sekong?
In Sekong, between 1940 and 2025, the highest apparent temperature reached 42.9 °C on 17 May 2010, and the lowest was 2.7 °C on 15 January 1963.
Compare Sekong with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sekong