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Sawara, Japan climate
Cfa Humid subtropical
Sawara has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 30°C, while the coldest is January averaging around 0°C at night. Precipitation totals about 1586 mm a year and is strongly seasonal — October alone averages 274 mm while December barely receives 67 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)Sawara climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 9 | 10 | 13 | 18 | 22 | 24 | 28 | 30 | 26 | 21 | 17 | 12 |
| Avg temp (°C) | 5 | 5 | 9 | 13 | 17 | 20 | 24 | 26 | 23 | 18 | 13 | 7 |
| Avg low (°C) | 0 | 1 | 4 | 9 | 14 | 17 | 21 | 23 | 20 | 15 | 9 | 3 |
| Precipitation (mm) | 88 | 72 | 130 | 123 | 133 | 145 | 135 | 102 | 211 | 274 | 106 | 67 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 9 | 10 | 13 | 18 | 22 | 24 |
| Avg temp (°C) | 5 | 5 | 9 | 13 | 17 | 20 |
| Avg low (°C) | 0 | 1 | 4 | 9 | 14 | 17 |
| Precipitation (mm) | 88 | 72 | 130 | 123 | 133 | 145 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 30 | 26 | 21 | 17 | 12 |
| Avg temp (°C) | 24 | 26 | 23 | 18 | 13 | 7 |
| Avg low (°C) | 21 | 23 | 20 | 15 | 9 | 3 |
| Precipitation (mm) | 135 | 102 | 211 | 274 | 106 | 67 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 61 | 65 | 70 | 69 | 72 | 81 | 74 | 60 | 71 | 72 | 68 | 62 |
| Relative humidity (%) | 73 | 72 | 73 | 76 | 79 | 84 | 85 | 83 | 82 | 80 | 77 | 75 |
| Wind speed (m/s) | 4.3 | 4.4 | 4.4 | 4.3 | 3.8 | 3.3 | 3.3 | 3.2 | 3.7 | 3.8 | 3.7 | 4.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 61 | 65 | 70 | 69 | 72 | 81 |
| Relative humidity (%) | 73 | 72 | 73 | 76 | 79 | 84 |
| Wind speed (m/s) | 4.3 | 4.4 | 4.4 | 4.3 | 3.8 | 3.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 74 | 60 | 71 | 72 | 68 | 62 |
| Relative humidity (%) | 85 | 83 | 82 | 80 | 77 | 75 |
| Wind speed (m/s) | 3.3 | 3.2 | 3.7 | 3.8 | 3.7 | 4.0 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Kashima, about 14 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.