Shima, Japan climate
Cfa Humid subtropical
Shima has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 87°F, while the coldest is January averaging around 35°F at night. Precipitation totals about 90 inches a year and is strongly seasonal — September alone averages 14.9 inches while December barely receives 2.96 inches.
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)Shima climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 50 | 52 | 58 | 66 | 73 | 78 | 85 | 87 | 82 | 73 | 64 | 55 |
| Avg temp (°F) | 43 | 44 | 49 | 57 | 65 | 71 | 78 | 80 | 75 | 65 | 56 | 47 |
| Avg low (°F) | 35 | 35 | 40 | 48 | 56 | 64 | 72 | 74 | 69 | 59 | 48 | 38 |
| Precipitation (in) | 3.0 | 3.4 | 6.3 | 7.6 | 8.8 | 10.1 | 9.0 | 7.3 | 14.9 | 11.3 | 4.8 | 3.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 50 | 52 | 58 | 66 | 73 | 78 |
| Avg temp (°F) | 43 | 44 | 49 | 57 | 65 | 71 |
| Avg low (°F) | 35 | 35 | 40 | 48 | 56 | 64 |
| Precipitation (in) | 3.0 | 3.4 | 6.3 | 7.6 | 8.8 | 10.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 85 | 87 | 82 | 73 | 64 | 55 |
| Avg temp (°F) | 78 | 80 | 75 | 65 | 56 | 47 |
| Avg low (°F) | 72 | 74 | 69 | 59 | 48 | 38 |
| Precipitation (in) | 9.0 | 7.3 | 14.9 | 11.3 | 4.8 | 3.0 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 66 | 67 | 67 | 65 | 70 | 81 | 75 | 63 | 70 | 66 | 63 | 63 |
| Relative humidity (%) | 77 | 76 | 75 | 76 | 80 | 84 | 86 | 84 | 82 | 79 | 77 | 77 |
| Wind speed (mph) | 10.8 | 10.6 | 9.9 | 8.4 | 7.1 | 6.0 | 5.5 | 6.1 | 7.1 | 8.0 | 8.7 | 10.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 66 | 67 | 67 | 65 | 70 | 81 |
| Relative humidity (%) | 77 | 76 | 75 | 76 | 80 | 84 |
| Wind speed (mph) | 10.8 | 10.6 | 9.9 | 8.4 | 7.1 | 6.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 63 | 70 | 66 | 63 | 63 |
| Relative humidity (%) | 86 | 84 | 82 | 79 | 77 | 77 |
| Wind speed (mph) | 5.5 | 6.1 | 7.1 | 8.0 | 8.7 | 10.2 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Minami-ise, 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.