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Minami-Sōma, Japan climate
Cfa Humid subtropical
Minami-Sōma has a seasonal cool-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 29°C, while the coldest is January averaging around −3°C at night. Precipitation totals about 1537 mm a year and is strongly seasonal — September alone averages 238 mm while December barely receives 44 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)Minami-Sōma climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 7 | 8 | 11 | 16 | 21 | 23 | 27 | 29 | 25 | 20 | 15 | 10 |
| Avg temp (°C) | 2 | 3 | 6 | 11 | 16 | 19 | 23 | 24 | 21 | 15 | 10 | 5 |
| Avg low (°C) | −3 | −3 | 0 | 5 | 10 | 15 | 19 | 20 | 17 | 10 | 4 | −1 |
| Precipitation (mm) | 59 | 46 | 94 | 120 | 126 | 156 | 193 | 163 | 238 | 226 | 71 | 44 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 7 | 8 | 11 | 16 | 21 | 23 |
| Avg temp (°C) | 2 | 3 | 6 | 11 | 16 | 19 |
| Avg low (°C) | −3 | −3 | 0 | 5 | 10 | 15 |
| Precipitation (mm) | 59 | 46 | 94 | 120 | 126 | 156 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 29 | 25 | 20 | 15 | 10 |
| Avg temp (°C) | 23 | 24 | 21 | 15 | 10 | 5 |
| Avg low (°C) | 19 | 20 | 17 | 10 | 4 | −1 |
| Precipitation (mm) | 193 | 163 | 238 | 226 | 71 | 44 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 62 | 63 | 65 | 66 | 69 | 77 | 78 | 69 | 74 | 68 | 63 | 63 |
| Relative humidity (%) | 77 | 75 | 75 | 78 | 82 | 87 | 89 | 87 | 84 | 79 | 78 | 78 |
| Wind speed (m/s) | 5.0 | 4.8 | 4.4 | 3.6 | 2.9 | 2.4 | 2.2 | 2.4 | 3.1 | 3.6 | 4.0 | 4.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 62 | 63 | 65 | 66 | 69 | 77 |
| Relative humidity (%) | 77 | 75 | 75 | 78 | 82 | 87 |
| Wind speed (m/s) | 5.0 | 4.8 | 4.4 | 3.6 | 2.9 | 2.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 78 | 69 | 74 | 68 | 63 | 63 |
| Relative humidity (%) | 89 | 87 | 84 | 79 | 78 | 78 |
| Wind speed (m/s) | 2.2 | 2.4 | 3.1 | 3.6 | 4.0 | 4.7 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Namie, about 15 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.