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Matsuyama, Japan climate
Cfa Humid subtropical
Matsuyama has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 33°C, while the coldest is January averaging around 3°C at night. Precipitation totals about 1405 mm a year and is strongly seasonal — June alone averages 229 mm while January barely receives 51 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)Matsuyama climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 10 | 11 | 14 | 20 | 24 | 27 | 31 | 33 | 29 | 24 | 18 | 13 |
| Avg temp (°C) | 6 | 7 | 10 | 15 | 19 | 23 | 27 | 28 | 25 | 19 | 14 | 9 |
| Avg low (°C) | 3 | 3 | 6 | 10 | 15 | 19 | 24 | 25 | 21 | 15 | 10 | 5 |
| Precipitation (mm) | 51 | 66 | 105 | 107 | 129 | 229 | 223 | 99 | 149 | 113 | 71 | 62 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 10 | 11 | 14 | 20 | 24 | 27 |
| Avg temp (°C) | 6 | 7 | 10 | 15 | 19 | 23 |
| Avg low (°C) | 3 | 3 | 6 | 10 | 15 | 19 |
| Precipitation (mm) | 51 | 66 | 105 | 107 | 129 | 229 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 33 | 29 | 24 | 18 | 13 |
| Avg temp (°C) | 27 | 28 | 25 | 19 | 14 | 9 |
| Avg low (°C) | 24 | 25 | 21 | 15 | 10 | 5 |
| Precipitation (mm) | 223 | 99 | 149 | 113 | 71 | 62 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 72 | 69 | 67 | 65 | 69 | 82 | 72 | 63 | 68 | 60 | 63 | 68 |
| Relative humidity (%) | 76 | 74 | 74 | 76 | 78 | 83 | 85 | 82 | 80 | 76 | 75 | 76 |
| Wind speed (km/h) | 11.7 | 11.4 | 10.9 | 9.0 | 7.2 | 6.2 | 6.5 | 6.9 | 8.9 | 10.4 | 10.3 | 11.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 72 | 69 | 67 | 65 | 69 | 82 |
| Relative humidity (%) | 76 | 74 | 74 | 76 | 78 | 83 |
| Wind speed (km/h) | 11.7 | 11.4 | 10.9 | 9.0 | 7.2 | 6.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 72 | 63 | 68 | 60 | 63 | 68 |
| Relative humidity (%) | 85 | 82 | 80 | 76 | 75 | 76 |
| Wind speed (km/h) | 6.5 | 6.9 | 8.9 | 10.4 | 10.3 | 11.2 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Matsuyama, about 1 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.