Home › Cities › Japan › Ashikaga
Ashikaga, Japan climate
Cfa Humid subtropical
Ashikaga 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 −3°C at night. Precipitation totals about 1262 mm a year and is strongly seasonal — July alone averages 185 mm while December barely receives 31 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)Ashikaga 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 | 30 | 32 | 28 | 22 | 17 | 12 |
| Avg temp (°C) | 3 | 4 | 8 | 13 | 18 | 22 | 25 | 26 | 23 | 17 | 11 | 5 |
| Avg low (°C) | −3 | −2 | 2 | 7 | 12 | 17 | 21 | 22 | 19 | 12 | 5 | 0 |
| Precipitation (mm) | 35 | 33 | 69 | 91 | 115 | 145 | 185 | 162 | 177 | 161 | 58 | 31 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 9 | 10 | 14 | 19 | 24 | 27 |
| Avg temp (°C) | 3 | 4 | 8 | 13 | 18 | 22 |
| Avg low (°C) | −3 | −2 | 2 | 7 | 12 | 17 |
| Precipitation (mm) | 35 | 33 | 69 | 91 | 115 | 145 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 32 | 28 | 22 | 17 | 12 |
| Avg temp (°C) | 25 | 26 | 23 | 17 | 11 | 5 |
| Avg low (°C) | 21 | 22 | 19 | 12 | 5 | 0 |
| Precipitation (mm) | 185 | 162 | 177 | 161 | 58 | 31 |
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 (%) | 82 | 80 | 77 | 75 | 76 | 80 | 82 | 82 | 83 | 83 | 82 | 82 |
| Wind speed (km/h) | 9.2 | 9.9 | 9.4 | 8.4 | 7.0 | 5.8 | 5.3 | 5.1 | 5.8 | 6.0 | 6.4 | 7.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 50 | 55 | 60 | 65 | 71 | 82 |
| Relative humidity (%) | 82 | 80 | 77 | 75 | 76 | 80 |
| Wind speed (km/h) | 9.2 | 9.9 | 9.4 | 8.4 | 7.0 | 5.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 81 | 72 | 75 | 68 | 55 | 49 |
| Relative humidity (%) | 82 | 82 | 83 | 83 | 82 | 82 |
| Wind speed (km/h) | 5.3 | 5.1 | 5.8 | 6.0 | 6.4 | 7.9 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Sano, about 11 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.