Zama, Japan climate
Cfa Humid subtropical
Zama has a 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 −1°C at night. Around 1783 mm of precipitation falls each year, peaking in September (254 mm) and easing off in February (67 mm).
☀️
Summers
Hot
Highs near 32°C in August.
❄️
Winters
Cold
Lows near −1°C in January.
🌧️
Rain
Very wet
About 1783 mm of rain a year.
Wettest in September
⛅
Sky & trend
Often cloudy
Cloudy skies much of the year.
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)Zama climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 11 | 11 | 14 | 19 | 24 | 26 | 30 | 32 | 28 | 23 | 18 | 13 |
| Avg temp (°C) | 5 | 6 | 9 | 14 | 19 | 22 | 26 | 27 | 23 | 18 | 12 | 7 |
| Avg low (°C) | −1 | 0 | 4 | 9 | 14 | 18 | 22 | 23 | 20 | 14 | 8 | 2 |
| Precipitation (mm) | 67 | 67 | 144 | 153 | 157 | 178 | 191 | 160 | 254 | 241 | 103 | 67 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 11 | 11 | 14 | 19 | 24 | 26 |
| Avg temp (°C) | 5 | 6 | 9 | 14 | 19 | 22 |
| Avg low (°C) | −1 | 0 | 4 | 9 | 14 | 18 |
| Precipitation (mm) | 67 | 67 | 144 | 153 | 157 | 178 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 32 | 28 | 23 | 18 | 13 |
| Avg temp (°C) | 26 | 27 | 23 | 18 | 12 | 7 |
| Avg low (°C) | 22 | 23 | 20 | 14 | 8 | 2 |
| Precipitation (mm) | 191 | 160 | 254 | 241 | 103 | 67 |
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 (%) | 77 | 76 | 77 | 77 | 79 | 83 | 84 | 82 | 84 | 84 | 82 | 79 |
| Wind speed (mph) | 5.5 | 6.0 | 6.4 | 6.5 | 5.9 | 5.2 | 5.5 | 5.2 | 5.4 | 5.3 | 5.0 | 5.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 46 | 52 | 60 | 64 | 70 | 82 |
| Relative humidity (%) | 77 | 76 | 77 | 77 | 79 | 83 |
| Wind speed (mph) | 5.5 | 6.0 | 6.4 | 6.5 | 5.9 | 5.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 64 | 71 | 67 | 56 | 45 |
| Relative humidity (%) | 84 | 82 | 84 | 84 | 82 | 79 |
| Wind speed (mph) | 5.5 | 5.2 | 5.4 | 5.3 | 5.0 | 5.1 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Ebina, about 6 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.