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Shikokuchūō, Japan climate
Cfa Humid subtropical
Shikokuchūō 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 3°C at night. Precipitation totals about 1445 mm a year and is strongly seasonal — September alone averages 233 mm while January barely receives 45 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)Shikokuchūō 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) | 6 | 6 | 9 | 14 | 19 | 23 | 27 | 28 | 24 | 19 | 13 | 8 |
| Avg low (°C) | 3 | 3 | 5 | 10 | 15 | 19 | 24 | 24 | 21 | 15 | 10 | 5 |
| Precipitation (mm) | 45 | 56 | 95 | 89 | 113 | 176 | 199 | 163 | 233 | 142 | 69 | 64 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 9 | 10 | 14 | 19 | 24 | 27 |
| Avg temp (°C) | 6 | 6 | 9 | 14 | 19 | 23 |
| Avg low (°C) | 3 | 3 | 5 | 10 | 15 | 19 |
| Precipitation (mm) | 45 | 56 | 95 | 89 | 113 | 176 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 32 | 28 | 23 | 17 | 12 |
| Avg temp (°C) | 27 | 28 | 24 | 19 | 13 | 8 |
| Avg low (°C) | 24 | 24 | 21 | 15 | 10 | 5 |
| Precipitation (mm) | 199 | 163 | 233 | 142 | 69 | 64 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 69 | 68 | 66 | 72 | 83 | 75 | 66 | 72 | 65 | 65 | 65 |
| Relative humidity (%) | 81 | 79 | 78 | 77 | 78 | 82 | 84 | 82 | 82 | 82 | 81 | 82 |
| Wind speed (mph) | 6.8 | 6.8 | 6.7 | 6.0 | 5.2 | 4.4 | 4.7 | 4.8 | 5.2 | 5.4 | 5.4 | 6.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 69 | 68 | 66 | 72 | 83 |
| Relative humidity (%) | 81 | 79 | 78 | 77 | 78 | 82 |
| Wind speed (mph) | 6.8 | 6.8 | 6.7 | 6.0 | 5.2 | 4.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 66 | 72 | 65 | 65 | 65 |
| Relative humidity (%) | 84 | 82 | 82 | 82 | 81 | 82 |
| Wind speed (mph) | 4.7 | 4.8 | 5.2 | 5.4 | 5.4 | 6.3 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Shikoku-chuo, about 3 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.