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Lamphun, Thailand climate
Aw Tropical savanna (dry winter)
Lamphun has a mildly seasonal tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is April with an average daily high near 98°F, while the coldest is January averaging around 59°F at night. Precipitation totals about 46 inches a year and is strongly seasonal — September alone averages 8.9 inches while February barely receives 0.42 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)Lamphun climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 86 | 91 | 96 | 98 | 94 | 92 | 90 | 89 | 90 | 89 | 88 | 85 |
| Avg temp (°F) | 73 | 76 | 82 | 86 | 85 | 84 | 82 | 82 | 82 | 81 | 77 | 73 |
| Avg low (°F) | 59 | 61 | 67 | 73 | 75 | 75 | 75 | 75 | 74 | 72 | 67 | 61 |
| Precipitation (in) | 0.5 | 0.4 | 0.9 | 2.2 | 6.3 | 4.9 | 5.6 | 8.7 | 8.9 | 4.9 | 1.8 | 0.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 86 | 91 | 96 | 98 | 94 | 92 |
| Avg temp (°F) | 73 | 76 | 82 | 86 | 85 | 84 |
| Avg low (°F) | 59 | 61 | 67 | 73 | 75 | 75 |
| Precipitation (in) | 0.5 | 0.4 | 0.9 | 2.2 | 6.3 | 4.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 90 | 89 | 90 | 89 | 88 | 85 |
| Avg temp (°F) | 82 | 82 | 82 | 81 | 77 | 73 |
| Avg low (°F) | 75 | 75 | 74 | 72 | 67 | 61 |
| Precipitation (in) | 5.6 | 8.7 | 8.9 | 4.9 | 1.8 | 0.6 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 25 | 21 | 31 | 48 | 76 | 91 | 93 | 93 | 85 | 66 | 42 | 31 |
| Relative humidity (%) | 66 | 55 | 51 | 56 | 74 | 81 | 84 | 87 | 89 | 87 | 81 | 75 |
| Wind speed (mph) | 0.7 | 0.6 | 0.4 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.4 | 0.5 | 0.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 25 | 21 | 31 | 48 | 76 | 91 |
| Relative humidity (%) | 66 | 55 | 51 | 56 | 74 | 81 |
| Wind speed (mph) | 0.7 | 0.6 | 0.4 | 0.2 | 0.1 | 0.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 93 | 93 | 85 | 66 | 42 | 31 |
| Relative humidity (%) | 84 | 87 | 89 | 87 | 81 | 75 |
| Wind speed (mph) | 0.1 | 0.1 | 0.2 | 0.4 | 0.5 | 0.6 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Chiang Mai Intl, a weather station, about 21 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.