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Yamaga, Japan climate
Cfa Humid subtropical
Yamaga 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 −2°C at night. Precipitation totals about 2178 mm a year and is strongly seasonal — July alone averages 453 mm while January barely receives 59 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)Yamaga climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 10 | 11 | 15 | 21 | 25 | 27 | 31 | 32 | 29 | 24 | 18 | 12 |
| Avg temp (°C) | 4 | 5 | 8 | 14 | 18 | 22 | 26 | 26 | 23 | 17 | 11 | 5 |
| Avg low (°C) | −2 | −1 | 2 | 7 | 12 | 18 | 22 | 22 | 18 | 11 | 5 | 0 |
| Precipitation (mm) | 59 | 85 | 136 | 159 | 197 | 449 | 453 | 233 | 167 | 86 | 88 | 66 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 10 | 11 | 15 | 21 | 25 | 27 |
| Avg temp (°C) | 4 | 5 | 8 | 14 | 18 | 22 |
| Avg low (°C) | −2 | −1 | 2 | 7 | 12 | 18 |
| Precipitation (mm) | 59 | 85 | 136 | 159 | 197 | 449 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 32 | 29 | 24 | 18 | 12 |
| Avg temp (°C) | 26 | 26 | 23 | 17 | 11 | 5 |
| Avg low (°C) | 22 | 22 | 18 | 11 | 5 | 0 |
| Precipitation (mm) | 453 | 233 | 167 | 86 | 88 | 66 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 76 | 73 | 70 | 67 | 68 | 81 | 73 | 66 | 67 | 60 | 65 | 71 |
| Relative humidity (%) | 81 | 79 | 78 | 78 | 79 | 84 | 86 | 84 | 84 | 82 | 81 | 81 |
| Wind speed (km/h) | 5.5 | 5.6 | 5.4 | 4.6 | 3.9 | 3.6 | 3.7 | 3.6 | 4.1 | 4.5 | 4.6 | 5.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 76 | 73 | 70 | 67 | 68 | 81 |
| Relative humidity (%) | 81 | 79 | 78 | 78 | 79 | 84 |
| Wind speed (km/h) | 5.5 | 5.6 | 5.4 | 4.6 | 3.9 | 3.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 66 | 67 | 60 | 65 | 71 |
| Relative humidity (%) | 86 | 84 | 84 | 82 | 81 | 81 |
| Wind speed (km/h) | 3.7 | 3.6 | 4.1 | 4.5 | 4.6 | 5.2 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Kahoku, about 11 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.