Home › Cities › Japan › Minamibōsō
Minamibōsō, Japan climate
Cfa Humid subtropical
Minamibōsō 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 1°C at night. Around 1846 mm of precipitation falls each year, peaking in October (258 mm) and easing off in February (82 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)Minamibōsō climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 11 | 12 | 15 | 19 | 23 | 25 | 29 | 31 | 28 | 23 | 18 | 14 |
| Avg temp (°C) | 6 | 7 | 10 | 15 | 19 | 22 | 25 | 27 | 24 | 19 | 14 | 9 |
| Avg low (°C) | 1 | 2 | 5 | 10 | 15 | 18 | 22 | 24 | 20 | 15 | 9 | 4 |
| Precipitation (mm) | 86 | 82 | 161 | 156 | 153 | 212 | 179 | 103 | 222 | 258 | 144 | 91 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 11 | 12 | 15 | 19 | 23 | 25 |
| Avg temp (°C) | 6 | 7 | 10 | 15 | 19 | 22 |
| Avg low (°C) | 1 | 2 | 5 | 10 | 15 | 18 |
| Precipitation (mm) | 86 | 82 | 161 | 156 | 153 | 212 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 29 | 31 | 28 | 23 | 18 | 14 |
| Avg temp (°C) | 25 | 27 | 24 | 19 | 14 | 9 |
| Avg low (°C) | 22 | 24 | 20 | 15 | 9 | 4 |
| Precipitation (mm) | 179 | 103 | 222 | 258 | 144 | 91 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 59 | 63 | 68 | 69 | 75 | 84 | 73 | 58 | 69 | 70 | 63 | 57 |
| Relative humidity (%) | 74 | 73 | 74 | 77 | 81 | 86 | 88 | 85 | 83 | 80 | 77 | 75 |
| Wind speed (mph) | 9.9 | 9.7 | 9.8 | 8.9 | 7.8 | 6.9 | 6.8 | 6.5 | 7.6 | 8.5 | 8.6 | 9.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 59 | 63 | 68 | 69 | 75 | 84 |
| Relative humidity (%) | 74 | 73 | 74 | 77 | 81 | 86 |
| Wind speed (mph) | 9.9 | 9.7 | 9.8 | 8.9 | 7.8 | 6.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 58 | 69 | 70 | 63 | 57 |
| Relative humidity (%) | 88 | 85 | 83 | 80 | 77 | 75 |
| Wind speed (mph) | 6.8 | 6.5 | 7.6 | 8.5 | 8.6 | 9.4 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Tateyama, 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.