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Suzaka, Japan climate
Cfa Humid subtropical
Suzaka has a strongly seasonal cool-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 88°F, while the coldest is January averaging around 25°F at night. Around 38 inches of precipitation falls each year, peaking in July (5.4 inches) and easing off in November (1.7 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)Suzaka climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 39 | 42 | 51 | 63 | 74 | 79 | 85 | 88 | 79 | 67 | 56 | 44 |
| Avg temp (°F) | 31 | 33 | 40 | 51 | 62 | 69 | 76 | 78 | 70 | 58 | 46 | 36 |
| Avg low (°F) | 25 | 25 | 31 | 41 | 52 | 61 | 69 | 71 | 63 | 51 | 38 | 29 |
| Precipitation (in) | 2.2 | 1.9 | 2.4 | 2.2 | 2.7 | 4.2 | 5.4 | 4.4 | 4.9 | 3.9 | 1.7 | 1.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 39 | 42 | 51 | 63 | 74 | 79 |
| Avg temp (°F) | 31 | 33 | 40 | 51 | 62 | 69 |
| Avg low (°F) | 25 | 25 | 31 | 41 | 52 | 61 |
| Precipitation (in) | 2.2 | 1.9 | 2.4 | 2.2 | 2.7 | 4.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 85 | 88 | 79 | 67 | 56 | 44 |
| Avg temp (°F) | 76 | 78 | 70 | 58 | 46 | 36 |
| Avg low (°F) | 69 | 71 | 63 | 51 | 38 | 29 |
| Precipitation (in) | 5.4 | 4.4 | 4.9 | 3.9 | 1.7 | 1.9 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 63 | 64 | 65 | 65 | 69 | 81 | 79 | 70 | 75 | 70 | 62 | 61 |
| Relative humidity (%) | 90 | 87 | 82 | 76 | 75 | 79 | 81 | 81 | 83 | 84 | 85 | 88 |
| Wind speed (mph) | 5.4 | 5.8 | 5.7 | 4.9 | 4.0 | 3.1 | 3.0 | 2.8 | 3.0 | 3.3 | 3.8 | 4.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 63 | 64 | 65 | 65 | 69 | 81 |
| Relative humidity (%) | 90 | 87 | 82 | 76 | 75 | 79 |
| Wind speed (mph) | 5.4 | 5.8 | 5.7 | 4.9 | 4.0 | 3.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 79 | 70 | 75 | 70 | 62 | 61 |
| Relative humidity (%) | 81 | 81 | 83 | 84 | 85 | 88 |
| Wind speed (mph) | 3.0 | 2.8 | 3.0 | 3.3 | 3.8 | 4.8 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Nagano, 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.