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Matsuyama Weather by Month
Average temperatures, rainfall and humidity for Matsuyama, Japan, month by month, built from OpenWeather’s historical records. Use it to see what a typical Matsuyama month looks like before you travel — then check the live Matsuyama forecast for the days ahead.
Warmest month
August
31°C average high
Coolest month
January
3°C average low
Wettest month
June
207 mm of rain
Driest month
January
47 mm of rain
Average temperature and rainfall in Matsuyama by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 10°C | 3°C | -5°C / 20°C | 47 mm | 66% | 13 km/h |
| February | 10°C | 3°C | -4°C / 24°C | 69 mm | 66% | 12 km/h |
| March | 14°C | 7°C | -1°C / 23°C | 113 mm | 68% | 11 km/h |
| April | 18°C | 11°C | 0°C / 27°C | 124 mm | 69% | 11 km/h |
| May | 22°C | 15°C | 5°C / 29°C | 94 mm | 70% | 9 km/h |
| June | 25°C | 20°C | 13°C / 33°C | 207 mm | 79% | 8 km/h |
| July | 30°C | 24°C | 18°C / 36°C | 114 mm | 78% | 8 km/h |
| August | 31°C | 25°C | 18°C / 38°C | 114 mm | 74% | 8 km/h |
| September | 28°C | 22°C | 14°C / 37°C | 130 mm | 76% | 10 km/h |
| October | 23°C | 16°C | 7°C / 32°C | 133 mm | 71% | 11 km/h |
| November | 18°C | 10°C | 1°C / 28°C | 68 mm | 69% | 12 km/h |
| December | 12°C | 5°C | -3°C / 21°C | 58 mm | 67% | 13 km/h |
Best time to visit Matsuyama
The most comfortable time to visit Matsuyama is generally May and September to October, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around June, totalling about 1,271 mm a year.
Travellers who prefer heat should aim for August, when highs average 31°C. June is the month to avoid if rain would spoil your plans — it averages 207 mm, roughly 4× the rainfall of the driest month (January).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Matsuyama forecast for what is happening now.