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Kawasaki, Japan climate
Cfa Humid subtropical
Kawasaki has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 31°C, while the coldest is January averaging around 3°C at night. Precipitation totals about 1415 mm a year and is strongly seasonal — September alone averages 205 mm while January barely receives 51 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)Kawasaki climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 10 | 10 | 14 | 19 | 23 | 26 | 30 | 31 | 27 | 22 | 17 | 12 |
| Avg temp (°C) | 6 | 7 | 10 | 15 | 19 | 22 | 26 | 27 | 24 | 19 | 14 | 9 |
| Avg low (°C) | 3 | 3 | 6 | 11 | 16 | 19 | 23 | 25 | 21 | 16 | 11 | 5 |
| Precipitation (mm) | 51 | 52 | 111 | 118 | 127 | 150 | 137 | 114 | 205 | 204 | 90 | 55 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 10 | 10 | 14 | 19 | 23 | 26 |
| Avg temp (°C) | 6 | 7 | 10 | 15 | 19 | 22 |
| Avg low (°C) | 3 | 3 | 6 | 11 | 16 | 19 |
| Precipitation (mm) | 51 | 52 | 111 | 118 | 127 | 150 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 31 | 27 | 22 | 17 | 12 |
| Avg temp (°C) | 26 | 27 | 24 | 19 | 14 | 9 |
| Avg low (°C) | 23 | 25 | 21 | 16 | 11 | 5 |
| Precipitation (mm) | 137 | 114 | 205 | 204 | 90 | 55 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 46 | 52 | 60 | 64 | 70 | 82 | 75 | 64 | 71 | 67 | 56 | 45 |
| Relative humidity (%) | 75 | 74 | 75 | 77 | 79 | 82 | 83 | 81 | 82 | 82 | 80 | 77 |
| Wind speed (m/s) | 2.7 | 2.9 | 3.0 | 2.9 | 2.7 | 2.3 | 2.4 | 2.3 | 2.5 | 2.5 | 2.3 | 2.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 46 | 52 | 60 | 64 | 70 | 82 |
| Relative humidity (%) | 75 | 74 | 75 | 77 | 79 | 82 |
| Wind speed (m/s) | 2.7 | 2.9 | 3.0 | 2.9 | 2.7 | 2.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 64 | 71 | 67 | 56 | 45 |
| Relative humidity (%) | 83 | 81 | 82 | 82 | 80 | 77 |
| Wind speed (m/s) | 2.4 | 2.3 | 2.5 | 2.5 | 2.3 | 2.5 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Haneda, about 7 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.