Sōsa, Japan climate
Cfa Humid subtropical
Sōsa has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 87°F, while the coldest is January averaging around 31°F at night. Around 59 inches of precipitation falls each year, peaking in October (9.4 inches) and easing off in December (2.5 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)Sōsa climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 51 | 52 | 57 | 65 | 73 | 77 | 84 | 87 | 82 | 73 | 64 | 55 |
| Avg temp (°F) | 40 | 42 | 48 | 57 | 64 | 70 | 76 | 79 | 74 | 64 | 54 | 45 |
| Avg low (°F) | 31 | 33 | 39 | 48 | 57 | 64 | 71 | 73 | 67 | 57 | 46 | 36 |
| Precipitation (in) | 3.1 | 2.8 | 5.0 | 4.7 | 5.2 | 6.3 | 4.9 | 3.6 | 7.9 | 9.4 | 4.1 | 2.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 51 | 52 | 57 | 65 | 73 | 77 |
| Avg temp (°F) | 40 | 42 | 48 | 57 | 64 | 70 |
| Avg low (°F) | 31 | 33 | 39 | 48 | 57 | 64 |
| Precipitation (in) | 3.1 | 2.8 | 5.0 | 4.7 | 5.2 | 6.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 84 | 87 | 82 | 73 | 64 | 55 |
| Avg temp (°F) | 76 | 79 | 74 | 64 | 54 | 45 |
| Avg low (°F) | 71 | 73 | 67 | 57 | 46 | 36 |
| Precipitation (in) | 4.9 | 3.6 | 7.9 | 9.4 | 4.1 | 2.5 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 61 | 65 | 70 | 69 | 72 | 81 | 74 | 60 | 71 | 72 | 68 | 62 |
| Relative humidity (%) | 72 | 72 | 73 | 76 | 80 | 86 | 89 | 86 | 82 | 77 | 74 | 73 |
| Wind speed (mph) | 13.3 | 13.3 | 13.1 | 12.2 | 10.9 | 9.5 | 9.2 | 8.9 | 10.6 | 11.7 | 11.5 | 12.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 61 | 65 | 70 | 69 | 72 | 81 |
| Relative humidity (%) | 72 | 72 | 73 | 76 | 80 | 86 |
| Wind speed (mph) | 13.3 | 13.3 | 13.1 | 12.2 | 10.9 | 9.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 74 | 60 | 71 | 72 | 68 | 62 |
| Relative humidity (%) | 89 | 86 | 82 | 77 | 74 | 73 |
| Wind speed (mph) | 9.2 | 8.9 | 10.6 | 11.7 | 11.5 | 12.6 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Yokoshiba-hikari, about 8 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.