Amami, Japan climate
Cfa Humid subtropical
Amami has a seasonal warm-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 89°F, while the coldest is January averaging around 53°F at night. Precipitation totals about 84 inches a year and is strongly seasonal — June alone averages 14.8 inches while January barely receives 3.69 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)Amami climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 64 | 66 | 69 | 73 | 78 | 83 | 89 | 89 | 87 | 82 | 75 | 68 |
| Avg temp (°F) | 59 | 60 | 63 | 68 | 73 | 78 | 83 | 84 | 82 | 76 | 70 | 62 |
| Avg low (°F) | 53 | 55 | 57 | 62 | 68 | 74 | 79 | 79 | 77 | 72 | 65 | 57 |
| Precipitation (in) | 3.7 | 4.1 | 5.2 | 6.0 | 9.1 | 14.8 | 6.2 | 7.7 | 9.4 | 7.9 | 5.8 | 4.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 64 | 66 | 69 | 73 | 78 | 83 |
| Avg temp (°F) | 59 | 60 | 63 | 68 | 73 | 78 |
| Avg low (°F) | 53 | 55 | 57 | 62 | 68 | 74 |
| Precipitation (in) | 3.7 | 4.1 | 5.2 | 6.0 | 9.1 | 14.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 89 | 89 | 87 | 82 | 75 | 68 |
| Avg temp (°F) | 83 | 84 | 82 | 76 | 70 | 62 |
| Avg low (°F) | 79 | 79 | 77 | 72 | 65 | 57 |
| Precipitation (in) | 6.2 | 7.7 | 9.4 | 7.9 | 5.8 | 4.2 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 86 | 85 | 84 | 81 | 79 | 82 | 60 | 56 | 63 | 68 | 76 | 82 |
| Relative humidity (%) | 74 | 75 | 76 | 77 | 81 | 88 | 84 | 82 | 79 | 76 | 74 | 73 |
| Wind speed (mph) | 14.9 | 14.5 | 13.9 | 12.5 | 11.1 | 11.6 | 11.2 | 11.6 | 11.9 | 13.5 | 13.6 | 14.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 86 | 85 | 84 | 81 | 79 | 82 |
| Relative humidity (%) | 74 | 75 | 76 | 77 | 81 | 88 |
| Wind speed (mph) | 14.9 | 14.5 | 13.9 | 12.5 | 11.1 | 11.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 60 | 56 | 63 | 68 | 76 | 82 |
| Relative humidity (%) | 84 | 82 | 79 | 76 | 74 | 73 |
| Wind speed (mph) | 11.2 | 11.6 | 11.9 | 13.5 | 13.6 | 14.4 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Kasari, about 22 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.