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Nakatsu, Japan climate
Cfa Humid subtropical
Nakatsu 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 1448 mm a year and is strongly seasonal — June alone averages 261 mm while January barely receives 48 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)Nakatsu climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 9 | 10 | 14 | 19 | 24 | 27 | 31 | 32 | 28 | 23 | 17 | 12 |
| Avg temp (°C) | 5 | 6 | 9 | 14 | 19 | 22 | 26 | 27 | 24 | 18 | 13 | 8 |
| Avg low (°C) | 1 | 2 | 4 | 9 | 14 | 19 | 23 | 24 | 20 | 14 | 8 | 3 |
| Precipitation (mm) | 48 | 62 | 93 | 104 | 119 | 261 | 251 | 133 | 169 | 95 | 64 | 49 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 9 | 10 | 14 | 19 | 24 | 27 |
| Avg temp (°C) | 5 | 6 | 9 | 14 | 19 | 22 |
| Avg low (°C) | 1 | 2 | 4 | 9 | 14 | 19 |
| Precipitation (mm) | 48 | 62 | 93 | 104 | 119 | 261 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 32 | 28 | 23 | 17 | 12 |
| Avg temp (°C) | 26 | 27 | 24 | 18 | 13 | 8 |
| Avg low (°C) | 23 | 24 | 20 | 14 | 8 | 3 |
| Precipitation (mm) | 251 | 133 | 169 | 95 | 64 | 49 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 74 | 72 | 68 | 66 | 70 | 82 | 74 | 65 | 69 | 62 | 65 | 70 |
| Relative humidity (%) | 80 | 78 | 77 | 77 | 78 | 83 | 84 | 82 | 81 | 79 | 78 | 80 |
| Wind speed (mph) | 10.4 | 9.8 | 9.4 | 8.5 | 7.7 | 7.2 | 7.4 | 7.6 | 7.6 | 8.0 | 8.2 | 9.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 74 | 72 | 68 | 66 | 70 | 82 |
| Relative humidity (%) | 80 | 78 | 77 | 77 | 78 | 83 |
| Wind speed (mph) | 10.4 | 9.8 | 9.4 | 8.5 | 7.7 | 7.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 74 | 65 | 69 | 62 | 65 | 70 |
| Relative humidity (%) | 84 | 82 | 81 | 79 | 78 | 80 |
| Wind speed (mph) | 7.4 | 7.6 | 7.6 | 8.0 | 8.2 | 9.8 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Bungotakada, about 23 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.