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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 91°F, while the coldest is January averaging around 37°F at night. Precipitation totals about 55 inches a year and is strongly seasonal — June alone averages 9.0 inches while January barely receives 2.00 inches.
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 (°F) | 50 | 52 | 58 | 67 | 76 | 81 | 88 | 91 | 84 | 75 | 65 | 55 |
| Avg temp (°F) | 43 | 44 | 50 | 59 | 67 | 73 | 81 | 83 | 76 | 66 | 56 | 47 |
| Avg low (°F) | 37 | 37 | 42 | 51 | 59 | 67 | 75 | 76 | 70 | 59 | 49 | 41 |
| Precipitation (in) | 2.0 | 2.6 | 4.1 | 4.2 | 5.1 | 9.0 | 8.8 | 3.9 | 5.9 | 4.4 | 2.8 | 2.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 50 | 52 | 58 | 67 | 76 | 81 |
| Avg temp (°F) | 43 | 44 | 50 | 59 | 67 | 73 |
| Avg low (°F) | 37 | 37 | 42 | 51 | 59 | 67 |
| Precipitation (in) | 2.0 | 2.6 | 4.1 | 4.2 | 5.1 | 9.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 88 | 91 | 84 | 75 | 65 | 55 |
| Avg temp (°F) | 81 | 83 | 76 | 66 | 56 | 47 |
| Avg low (°F) | 75 | 76 | 70 | 59 | 49 | 41 |
| Precipitation (in) | 8.8 | 3.9 | 5.9 | 4.4 | 2.8 | 2.4 |
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 (mph) | 7.2 | 7.1 | 6.8 | 5.6 | 4.5 | 3.9 | 4.0 | 4.3 | 5.5 | 6.5 | 6.4 | 6.9 |
| 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 (mph) | 7.2 | 7.1 | 6.8 | 5.6 | 4.5 | 3.9 |
| 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 (mph) | 4.0 | 4.3 | 5.5 | 6.5 | 6.4 | 6.9 |
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.