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Mito Weather by Month
Average temperatures, rainfall and humidity for Mito, Japan, month by month, built from OpenWeather's historical records. Use it to see what a typical Mito month looks like before you travel — then check the live Mito forecast for the days ahead.
Warmest month
August
31°C average high
Coolest month
January
-1°C average low
Wettest month
June
150 mm of rain
Driest month
January
42 mm of rain
Average temperature and rainfall in Mito 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 | -1°C | -8°C / 19°C | 42 mm | 61% | 10 km/h |
| February | 10°C | 0°C | -10°C / 23°C | 50 mm | 60% | 11 km/h |
| March | 14°C | 4°C | -6°C / 24°C | 73 mm | 64% | 11 km/h |
| April | 19°C | 9°C | -3°C / 28°C | 106 mm | 68% | 12 km/h |
| May | 23°C | 14°C | 2°C / 35°C | 97 mm | 72% | 11 km/h |
| June | 26°C | 18°C | 10°C / 36°C | 150 mm | 79% | 10 km/h |
| July | 30°C | 22°C | 16°C / 37°C | 99 mm | 80% | 10 km/h |
| August | 31°C | 24°C | 14°C / 37°C | 123 mm | 79% | 11 km/h |
| September | 27°C | 20°C | 10°C / 35°C | 104 mm | 81% | 11 km/h |
| October | 22°C | 14°C | 2°C / 32°C | 131 mm | 77% | 11 km/h |
| November | 17°C | 7°C | -5°C / 25°C | 73 mm | 72% | 9 km/h |
| December | 12°C | 2°C | -8°C / 23°C | 59 mm | 65% | 9 km/h |
Best time to visit Mito
The most comfortable time to visit Mito 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 1106 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 150 mm, roughly 4× the rainfall of January.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Mito forecast for what is happening now.