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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 32°C, while the coldest is January averaging around 1°C at night. Precipitation totals about 1850 mm a year and is strongly seasonal — July alone averages 325 mm while January barely receives 54 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)Tokuyama climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 9 | 10 | 14 | 19 | 24 | 26 | 30 | 32 | 28 | 23 | 18 | 12 |
| Avg temp (°C) | 5 | 6 | 9 | 14 | 18 | 22 | 26 | 27 | 24 | 18 | 12 | 7 |
| Avg low (°C) | 1 | 1 | 4 | 9 | 13 | 18 | 23 | 23 | 20 | 14 | 8 | 3 |
| Precipitation (mm) | 54 | 85 | 148 | 184 | 216 | 278 | 325 | 154 | 169 | 101 | 78 | 59 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 9 | 10 | 14 | 19 | 24 | 26 |
| Avg temp (°C) | 5 | 6 | 9 | 14 | 18 | 22 |
| Avg low (°C) | 1 | 1 | 4 | 9 | 13 | 18 |
| Precipitation (mm) | 54 | 85 | 148 | 184 | 216 | 278 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 32 | 28 | 23 | 18 | 12 |
| Avg temp (°C) | 26 | 27 | 24 | 18 | 12 | 7 |
| Avg low (°C) | 23 | 23 | 20 | 14 | 8 | 3 |
| Precipitation (mm) | 325 | 154 | 169 | 101 | 78 | 59 |
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 (m/s) | 3.0 | 2.8 | 2.5 | 2.0 | 1.6 | 1.3 | 1.3 | 1.6 | 1.9 | 2.3 | 2.4 | 2.8 |
| 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 (m/s) | 3.0 | 2.8 | 2.5 | 2.0 | 1.6 | 1.3 |
| 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 (m/s) | 1.3 | 1.6 | 1.9 | 2.3 | 2.4 | 2.8 |
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.