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Furukawa, Japan climate
Cfa Humid subtropical
Furukawa has a seasonal cool-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 83°F, while the coldest is January averaging around 25°F at night. Precipitation totals about 46 inches a year and is strongly seasonal — July alone averages 6.7 inches while February barely receives 1.38 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)Furukawa climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 39 | 41 | 48 | 60 | 69 | 75 | 80 | 83 | 77 | 67 | 55 | 44 |
| Avg temp (°F) | 32 | 33 | 39 | 49 | 59 | 66 | 73 | 75 | 68 | 57 | 46 | 36 |
| Avg low (°F) | 25 | 26 | 30 | 38 | 51 | 60 | 67 | 69 | 61 | 48 | 37 | 29 |
| Precipitation (in) | 1.8 | 1.4 | 2.8 | 3.3 | 4.0 | 4.9 | 6.7 | 5.5 | 6.3 | 5.1 | 2.5 | 2.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 39 | 41 | 48 | 60 | 69 | 75 |
| Avg temp (°F) | 32 | 33 | 39 | 49 | 59 | 66 |
| Avg low (°F) | 25 | 26 | 30 | 38 | 51 | 60 |
| Precipitation (in) | 1.8 | 1.4 | 2.8 | 3.3 | 4.0 | 4.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 80 | 83 | 77 | 67 | 55 | 44 |
| Avg temp (°F) | 73 | 75 | 68 | 57 | 46 | 36 |
| Avg low (°F) | 67 | 69 | 61 | 48 | 37 | 29 |
| Precipitation (in) | 6.7 | 5.5 | 6.3 | 5.1 | 2.5 | 2.1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 77 | 75 | 73 | 71 | 71 | 77 | 80 | 71 | 76 | 72 | 74 | 79 |
| Relative humidity (%) | 95 | 93 | 87 | 82 | 81 | 83 | 86 | 85 | 87 | 87 | 89 | 93 |
| Wind speed (mph) | 4.2 | 5.0 | 4.5 | 3.2 | 2.1 | 1.6 | 1.5 | 1.5 | 1.6 | 1.7 | 2.0 | 3.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 77 | 75 | 73 | 71 | 71 | 77 |
| Relative humidity (%) | 95 | 93 | 87 | 82 | 81 | 83 |
| Wind speed (mph) | 4.2 | 5.0 | 4.5 | 3.2 | 2.1 | 1.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 80 | 71 | 76 | 72 | 74 | 79 |
| Relative humidity (%) | 86 | 85 | 87 | 87 | 89 | 93 |
| Wind speed (mph) | 1.5 | 1.5 | 1.6 | 1.7 | 2.0 | 3.0 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Furukawa, about 5 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.