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Muang Xay, Laos climate
Cwa Monsoon-influenced humid subtropical
Muang Xay has a mildly seasonal warm-temperate climate (Monsoon-influenced humid subtropical, Köppen Cwa). The hottest month is May with an average daily high near 87°F, while the coldest is December averaging around 51°F at night. Precipitation totals about 74 inches a year and is strongly seasonal — August alone averages 13.9 inches while February barely receives 0.91 inches.
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)Muang Xay climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 76 | 81 | 86 | 89 | 87 | 85 | 82 | 82 | 82 | 81 | 78 | 74 |
| Avg temp (°F) | 64 | 68 | 74 | 77 | 78 | 77 | 76 | 75 | 75 | 72 | 67 | 62 |
| Avg low (°F) | 52 | 55 | 61 | 66 | 68 | 70 | 69 | 69 | 67 | 63 | 57 | 51 |
| Precipitation (in) | 1.4 | 0.9 | 2.8 | 5.9 | 9.9 | 10.5 | 13.7 | 13.9 | 8.4 | 3.9 | 1.7 | 1.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 76 | 81 | 86 | 89 | 87 | 85 |
| Avg temp (°F) | 64 | 68 | 74 | 77 | 78 | 77 |
| Avg low (°F) | 52 | 55 | 61 | 66 | 68 | 70 |
| Precipitation (in) | 1.4 | 0.9 | 2.8 | 5.9 | 9.9 | 10.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 82 | 82 | 82 | 81 | 78 | 74 |
| Avg temp (°F) | 76 | 75 | 75 | 72 | 67 | 62 |
| Avg low (°F) | 69 | 69 | 67 | 63 | 57 | 51 |
| Precipitation (in) | 13.7 | 13.9 | 8.4 | 3.9 | 1.7 | 1.3 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 0.1 | 1 | 9 | 14 | 11 | 6 | 2 | 1 | 1 | 1 | 0.2 | — |
| Days with low ≤ 32°F (days) | 0.0 | — | — | — | — | — | — | — | — | — | — | 0.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 0.1 | 1 | 9 | 14 | 11 | 6 |
| Days with low ≤ 32°F (days) | 0.0 | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 2 | 1 | 1 | 1 | 0.2 | — |
| Days with low ≤ 32°F (days) | — | — | — | — | — | 0.1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 42 | 34 | 41 | 57 | 77 | 91 | 92 | 89 | 75 | 58 | 45 | 45 |
| Relative humidity (%) | 69 | 61 | 58 | 63 | 72 | 79 | 85 | 86 | 83 | 78 | 75 | 73 |
| Wind speed (mph) | 0.6 | 0.6 | 0.5 | 0.3 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 42 | 34 | 41 | 57 | 77 | 91 |
| Relative humidity (%) | 69 | 61 | 58 | 63 | 72 | 79 |
| Wind speed (mph) | 0.6 | 0.6 | 0.5 | 0.3 | 0.1 | 0.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 92 | 89 | 75 | 58 | 45 | 45 |
| Relative humidity (%) | 85 | 86 | 83 | 78 | 75 | 73 |
| Wind speed (mph) | 0.1 | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 |
Methodology & sources
Temperature & precipitation — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.
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.