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Shirakawa, Japan climate
Cfa Humid subtropical
Shirakawa has a seasonal cool-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 84°F, while the coldest is January averaging around 26°F at night. Precipitation totals about 57 inches a year and is strongly seasonal — July alone averages 9.2 inches while February barely receives 1.37 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)Shirakawa climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 41 | 43 | 50 | 61 | 70 | 75 | 81 | 84 | 76 | 66 | 56 | 46 |
| Avg temp (°F) | 33 | 34 | 40 | 50 | 60 | 66 | 73 | 75 | 68 | 57 | 47 | 38 |
| Avg low (°F) | 26 | 27 | 31 | 40 | 51 | 59 | 67 | 68 | 61 | 50 | 38 | 30 |
| Precipitation (in) | 1.7 | 1.4 | 3.1 | 4.0 | 4.8 | 5.9 | 9.2 | 8.1 | 8.3 | 6.5 | 2.6 | 1.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 41 | 43 | 50 | 61 | 70 | 75 |
| Avg temp (°F) | 33 | 34 | 40 | 50 | 60 | 66 |
| Avg low (°F) | 26 | 27 | 31 | 40 | 51 | 59 |
| Precipitation (in) | 1.7 | 1.4 | 3.1 | 4.0 | 4.8 | 5.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 81 | 84 | 76 | 66 | 56 | 46 |
| Avg temp (°F) | 73 | 75 | 68 | 57 | 47 | 38 |
| Avg low (°F) | 67 | 68 | 61 | 50 | 38 | 30 |
| Precipitation (in) | 9.2 | 8.1 | 8.3 | 6.5 | 2.6 | 1.6 |
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 (%) | 85 | 83 | 81 | 79 | 79 | 82 | 84 | 84 | 86 | 86 | 86 | 86 |
| Wind speed (mph) | 2.7 | 3.1 | 3.0 | 2.4 | 1.7 | 1.3 | 1.1 | 1.1 | 1.2 | 1.4 | 1.6 | 2.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 62 | 63 | 65 | 66 | 69 | 77 |
| Relative humidity (%) | 85 | 83 | 81 | 79 | 79 | 82 |
| Wind speed (mph) | 2.7 | 3.1 | 3.0 | 2.4 | 1.7 | 1.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 78 | 69 | 74 | 68 | 63 | 63 |
| Relative humidity (%) | 84 | 84 | 86 | 86 | 86 | 86 |
| Wind speed (mph) | 1.1 | 1.1 | 1.2 | 1.4 | 1.6 | 2.1 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Shirakawa, about 4 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.