Sekong, Laos climate
Aw Tropical savanna (dry winter)
Sekong has a mildly seasonal tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is April with an average daily high near 37°C, while the coldest is December averaging around 18°C at night. Precipitation totals about 1759 mm a year and is strongly seasonal — August alone averages 327 mm while December barely receives 10 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Sekong climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 34 | 36 | 37 | 35 | 34 | 33 | 32 | 32 | 32 | 32 | 31 |
| Avg temp (°C) | 25 | 27 | 29 | 30 | 30 | 29 | 28 | 28 | 28 | 27 | 26 | 25 |
| Avg low (°C) | 18 | 20 | 22 | 24 | 24 | 25 | 24 | 24 | 24 | 23 | 20 | 18 |
| Precipitation (mm) | 17 | 69 | 17 | 70 | 249 | 259 | 289 | 327 | 321 | 108 | 22 | 10 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 34 | 36 | 37 | 35 | 34 |
| Avg temp (°C) | 25 | 27 | 29 | 30 | 30 | 29 |
| Avg low (°C) | 18 | 20 | 22 | 24 | 24 | 25 |
| Precipitation (mm) | 17 | 69 | 17 | 70 | 249 | 259 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 33 | 32 | 32 | 32 | 32 | 31 |
| Avg temp (°C) | 28 | 28 | 28 | 27 | 26 | 25 |
| Avg low (°C) | 24 | 24 | 24 | 23 | 20 | 18 |
| Precipitation (mm) | 289 | 327 | 321 | 108 | 22 | 10 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 0.7 | 2 | 3 | 6 | 15 | 16 | 18 | 20 | 19 | 11 | 3 | 1.0 |
| Days with high ≥ 32°C (days) | 17 | 22 | 27 | 27 | 27 | 24 | 20 | 18 | 17 | 19 | 17 | 12 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 0.7 | 2 | 3 | 6 | 15 | 16 |
| Days with high ≥ 32°C (days) | 17 | 22 | 27 | 27 | 27 | 24 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 18 | 20 | 19 | 11 | 3 | 1.0 |
| Days with high ≥ 32°C (days) | 20 | 18 | 17 | 19 | 17 | 12 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 31 | 37 | 51 | 64 | 78 | 85 | 85 | 88 | 84 | 61 | 44 | 36 |
| Relative humidity (%) | 60 | 53 | 50 | 57 | 73 | 85 | 88 | 89 | 89 | 86 | 80 | 69 |
| Wind speed (km/h) | 10.2 | 9.5 | 8.5 | 7.1 | 6.4 | 7.7 | 8.2 | 7.6 | 5.7 | 7.1 | 9.3 | 11.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 31 | 37 | 51 | 64 | 78 | 85 |
| Relative humidity (%) | 60 | 53 | 50 | 57 | 73 | 85 |
| Wind speed (km/h) | 10.2 | 9.5 | 8.5 | 7.1 | 6.4 | 7.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 85 | 88 | 84 | 61 | 44 | 36 |
| Relative humidity (%) | 88 | 89 | 89 | 86 | 80 | 69 |
| Wind speed (km/h) | 8.2 | 7.6 | 5.7 | 7.1 | 9.3 | 11.3 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 24 years of daily observations at Ubon Ratchathani, a weather station, about 199 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.