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Nakatsugawa, Japan climate
Cfa Humid subtropical
Nakatsugawa has a strongly seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 32°C, while the coldest is January averaging around −4°C at night. Precipitation totals about 1947 mm a year and is strongly seasonal — July alone averages 290 mm while January barely receives 59 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)Nakatsugawa climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 7 | 9 | 14 | 19 | 24 | 27 | 31 | 32 | 28 | 22 | 16 | 9 |
| Avg temp (°C) | 1 | 2 | 7 | 12 | 18 | 21 | 25 | 26 | 22 | 16 | 9 | 4 |
| Avg low (°C) | −4 | −3 | 1 | 6 | 11 | 16 | 21 | 22 | 18 | 11 | 4 | −1 |
| Precipitation (mm) | 59 | 91 | 141 | 165 | 154 | 220 | 290 | 240 | 242 | 179 | 91 | 76 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 7 | 9 | 14 | 19 | 24 | 27 |
| Avg temp (°C) | 1 | 2 | 7 | 12 | 18 | 21 |
| Avg low (°C) | −4 | −3 | 1 | 6 | 11 | 16 |
| Precipitation (mm) | 59 | 91 | 141 | 165 | 154 | 220 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 32 | 28 | 22 | 16 | 9 |
| Avg temp (°C) | 25 | 26 | 22 | 16 | 9 | 4 |
| Avg low (°C) | 21 | 22 | 18 | 11 | 4 | −1 |
| Precipitation (mm) | 290 | 240 | 242 | 179 | 91 | 76 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 58 | 58 | 62 | 64 | 69 | 81 | 77 | 68 | 71 | 63 | 57 | 57 |
| Relative humidity (%) | 88 | 85 | 81 | 79 | 79 | 83 | 86 | 84 | 85 | 85 | 86 | 88 |
| Wind speed (m/s) | 0.9 | 1.0 | 1.1 | 1.0 | 0.8 | 0.7 | 0.7 | 0.6 | 0.7 | 0.7 | 0.7 | 0.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 58 | 58 | 62 | 64 | 69 | 81 |
| Relative humidity (%) | 88 | 85 | 81 | 79 | 79 | 83 |
| Wind speed (m/s) | 0.9 | 1.0 | 1.1 | 1.0 | 0.8 | 0.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 77 | 68 | 71 | 63 | 57 | 57 |
| Relative humidity (%) | 86 | 84 | 85 | 85 | 86 | 88 |
| Wind speed (m/s) | 0.7 | 0.6 | 0.7 | 0.7 | 0.7 | 0.8 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Nakatsugawa, about 1 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.