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Itami Weather by Month
Average temperatures, rainfall and humidity for Itami, Japan, month by month, built from OpenWeather’s historical records. Use it to see what a typical Itami month looks like before you travel — then check the live Itami forecast for the days ahead.
Warmest month
August
33°C average high
Coolest month
January
2°C average low
Wettest month
June
187 mm of rain
Driest month
January
60 mm of rain
Average temperature and rainfall in Itami 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 | 9°C | 2°C | -12°C / 17°C | 60 mm | 70% | 13 km/h |
| February | 10°C | 2°C | -10°C / 22°C | 69 mm | 67% | 13 km/h |
| March | 14°C | 6°C | -3°C / 24°C | 100 mm | 66% | 13 km/h |
| April | 19°C | 11°C | 1°C / 29°C | 124 mm | 66% | 13 km/h |
| May | 24°C | 15°C | 4°C / 32°C | 114 mm | 68% | 11 km/h |
| June | 27°C | 19°C | 10°C / 36°C | 187 mm | 77% | 11 km/h |
| July | 31°C | 24°C | 17°C / 40°C | 132 mm | 79% | 11 km/h |
| August | 33°C | 25°C | 18°C / 41°C | 171 mm | 75% | 12 km/h |
| September | 29°C | 21°C | 10°C / 37°C | 134 mm | 75% | 11 km/h |
| October | 23°C | 15°C | 4°C / 33°C | 121 mm | 74% | 12 km/h |
| November | 17°C | 9°C | -2°C / 27°C | 67 mm | 70% | 12 km/h |
| December | 12°C | 4°C | -6°C / 23°C | 63 mm | 70% | 13 km/h |
Best time to visit Itami
The most comfortable time to visit Itami 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 1,343 mm a year.
Travellers who prefer heat should aim for August, when highs average 33°C. June is the month to avoid if rain would spoil your plans — it averages 187 mm, roughly 3× the rainfall of the driest month (January).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Itami forecast for what is happening now.