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Kirishima Weather by Month
Average temperatures, rainfall and humidity for Kirishima, Japan, month by month, built from OpenWeather's historical records. Use it to see what a typical Kirishima month looks like before you travel — then check the live Kirishima forecast for the days ahead.
Warmest month
August
31°C average high
Coolest month
January
2°C average low
Wettest month
June
378 mm of rain
Driest month
January
50 mm of rain
Average temperature and rainfall in Kirishima 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 | 12°C | 2°C | -9°C / 21°C | 50 mm | 75% | 12 km/h |
| February | 13°C | 3°C | -9°C / 22°C | 96 mm | 75% | 12 km/h |
| March | 17°C | 7°C | -7°C / 27°C | 115 mm | 74% | 11 km/h |
| April | 20°C | 11°C | -1°C / 27°C | 147 mm | 75% | 11 km/h |
| May | 24°C | 15°C | 3°C / 33°C | 166 mm | 76% | 10 km/h |
| June | 26°C | 20°C | 10°C / 33°C | 378 mm | 84% | 9 km/h |
| July | 30°C | 24°C | 16°C / 36°C | 163 mm | 82% | 10 km/h |
| August | 31°C | 24°C | 17°C / 38°C | 180 mm | 81% | 10 km/h |
| September | 29°C | 21°C | 9°C / 34°C | 173 mm | 82% | 9 km/h |
| October | 24°C | 15°C | 4°C / 34°C | 103 mm | 78% | 9 km/h |
| November | 19°C | 9°C | -5°C / 28°C | 84 mm | 78% | 10 km/h |
| December | 13°C | 4°C | -9°C / 22°C | 51 mm | 76% | 11 km/h |
Best time to visit Kirishima
The most comfortable time to visit Kirishima is generally May and October to November, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around June, totalling about 1707 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 378 mm, roughly 8× the rainfall of January.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Kirishima forecast for what is happening now.