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Miyakonojō Weather by Month
Average temperatures, rainfall and humidity for Miyakonojō, Japan, month by month, built from OpenWeather's historical records. Use it to see what a typical Miyakonojō month looks like before you travel — then check the live Miyakonojō forecast for the days ahead.
Warmest month
August
31°C average high
Coolest month
January
2°C average low
Wettest month
June
272 mm of rain
Driest month
January
38 mm of rain
Average temperature and rainfall in Miyakonojō 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 | 38 mm | 76% | 11 km/h |
| February | 13°C | 3°C | -9°C / 22°C | 85 mm | 77% | 11 km/h |
| March | 17°C | 6°C | -7°C / 26°C | 111 mm | 75% | 10 km/h |
| April | 20°C | 11°C | -1°C / 27°C | 150 mm | 75% | 10 km/h |
| May | 24°C | 15°C | 4°C / 30°C | 144 mm | 77% | 10 km/h |
| June | 26°C | 19°C | 10°C / 32°C | 272 mm | 85% | 9 km/h |
| July | 30°C | 23°C | 17°C / 39°C | 179 mm | 84% | 10 km/h |
| August | 31°C | 24°C | 17°C / 40°C | 168 mm | 82% | 9 km/h |
| September | 28°C | 21°C | 9°C / 34°C | 153 mm | 82% | 9 km/h |
| October | 24°C | 15°C | 4°C / 35°C | 94 mm | 79% | 9 km/h |
| November | 19°C | 9°C | -5°C / 27°C | 74 mm | 79% | 9 km/h |
| December | 13°C | 4°C | -9°C / 23°C | 47 mm | 76% | 11 km/h |
Best time to visit Miyakonojō
The most comfortable time to visit Miyakonojō 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 1514 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 272 mm, roughly 7× the rainfall of January.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Miyakonojō forecast for what is happening now.