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Tokuyama, Japan climate
Cfa Humid subtropical
Tokuyama has a seasonal mild-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 33°F at night. Precipitation totals about 73 inches a year and is strongly seasonal — July alone averages 12.8 inches while January barely receives 2.14 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)Tokuyama climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 49 | 51 | 57 | 67 | 74 | 79 | 86 | 89 | 83 | 74 | 64 | 53 |
| Avg temp (°F) | 41 | 42 | 48 | 57 | 65 | 71 | 78 | 81 | 74 | 64 | 54 | 45 |
| Avg low (°F) | 33 | 34 | 39 | 47 | 56 | 65 | 73 | 74 | 67 | 56 | 46 | 37 |
| Precipitation (in) | 2.1 | 3.4 | 5.8 | 7.2 | 8.5 | 10.9 | 12.8 | 6.1 | 6.7 | 4.0 | 3.1 | 2.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 49 | 51 | 57 | 67 | 74 | 79 |
| Avg temp (°F) | 41 | 42 | 48 | 57 | 65 | 71 |
| Avg low (°F) | 33 | 34 | 39 | 47 | 56 | 65 |
| Precipitation (in) | 2.1 | 3.4 | 5.8 | 7.2 | 8.5 | 10.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 86 | 89 | 83 | 74 | 64 | 53 |
| Avg temp (°F) | 78 | 81 | 74 | 64 | 54 | 45 |
| Avg low (°F) | 73 | 74 | 67 | 56 | 46 | 37 |
| Precipitation (in) | 12.8 | 6.1 | 6.7 | 4.0 | 3.1 | 2.3 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 85 | 81 | 75 | 68 | 67 | 79 | 74 | 67 | 72 | 67 | 74 | 81 |
| Relative humidity (%) | 77 | 76 | 76 | 77 | 79 | 83 | 85 | 83 | 81 | 78 | 77 | 77 |
| Wind speed (mph) | 6.6 | 6.2 | 5.6 | 4.5 | 3.5 | 3.0 | 3.0 | 3.5 | 4.3 | 5.1 | 5.4 | 6.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 85 | 81 | 75 | 68 | 67 | 79 |
| Relative humidity (%) | 77 | 76 | 76 | 77 | 79 | 83 |
| Wind speed (mph) | 6.6 | 6.2 | 5.6 | 4.5 | 3.5 | 3.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 74 | 67 | 72 | 67 | 74 | 81 |
| Relative humidity (%) | 85 | 83 | 81 | 78 | 77 | 77 |
| Wind speed (mph) | 3.0 | 3.5 | 4.3 | 5.1 | 5.4 | 6.3 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Kudamatsu, 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.