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Maebashi, Japan climate
Cfa Humid subtropical
Maebashi has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 32°C, while the coldest is January averaging around −1°C at night. Precipitation totals about 1247 mm a year and is strongly seasonal — September alone averages 204 mm while December barely receives 24 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)Maebashi climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 9 | 10 | 14 | 19 | 24 | 27 | 31 | 32 | 27 | 22 | 16 | 12 |
| Avg temp (°C) | 4 | 5 | 8 | 13 | 19 | 22 | 26 | 27 | 23 | 17 | 11 | 6 |
| Avg low (°C) | −1 | 0 | 3 | 8 | 14 | 18 | 22 | 23 | 19 | 13 | 7 | 2 |
| Precipitation (mm) | 30 | 26 | 58 | 75 | 99 | 148 | 202 | 196 | 204 | 142 | 43 | 24 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 9 | 10 | 14 | 19 | 24 | 27 |
| Avg temp (°C) | 4 | 5 | 8 | 13 | 19 | 22 |
| Avg low (°C) | −1 | 0 | 3 | 8 | 14 | 18 |
| Precipitation (mm) | 30 | 26 | 58 | 75 | 99 | 148 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 32 | 27 | 22 | 16 | 12 |
| Avg temp (°C) | 26 | 27 | 23 | 17 | 11 | 6 |
| Avg low (°C) | 22 | 23 | 19 | 13 | 7 | 2 |
| Precipitation (mm) | 202 | 196 | 204 | 142 | 43 | 24 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 50 | 55 | 60 | 65 | 71 | 82 | 81 | 72 | 75 | 68 | 55 | 49 |
| Relative humidity (%) | 93 | 92 | 86 | 81 | 80 | 84 | 86 | 86 | 88 | 88 | 89 | 91 |
| Wind speed (km/h) | 9.8 | 10.3 | 9.9 | 8.4 | 6.8 | 5.2 | 4.6 | 4.6 | 5.4 | 5.9 | 6.6 | 8.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 50 | 55 | 60 | 65 | 71 | 82 |
| Relative humidity (%) | 93 | 92 | 86 | 81 | 80 | 84 |
| Wind speed (km/h) | 9.8 | 10.3 | 9.9 | 8.4 | 6.8 | 5.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 81 | 72 | 75 | 68 | 55 | 49 |
| Relative humidity (%) | 86 | 86 | 88 | 88 | 89 | 91 |
| Wind speed (km/h) | 4.6 | 4.6 | 5.4 | 5.9 | 6.6 | 8.5 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Maebashi, about 2 km from the city centre.
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.