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Ikoma Weather by Month
Average temperatures, rainfall and humidity for Ikoma, Japan, month by month, built from OpenWeather’s historical records. Use it to see what a typical Ikoma month looks like before you travel — then check the live Ikoma forecast for the days ahead.
Warmest month
August
33°C average high
Coolest month
January
2°C average low
Wettest month
June
169 mm of rain
Driest month
January
63 mm of rain
Average temperature and rainfall in Ikoma 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 | 2°C | -12°C / 17°C | 63 mm | 64% | 13 km/h |
| February | 10°C | 2°C | -10°C / 21°C | 71 mm | 63% | 13 km/h |
| March | 14°C | 6°C | -4°C / 26°C | 111 mm | 61% | 12 km/h |
| April | 20°C | 11°C | 0°C / 29°C | 129 mm | 60% | 11 km/h |
| May | 24°C | 15°C | 4°C / 32°C | 112 mm | 62% | 10 km/h |
| June | 27°C | 20°C | 9°C / 40°C | 169 mm | 69% | 10 km/h |
| July | 32°C | 24°C | 17°C / 39°C | 138 mm | 71% | 10 km/h |
| August | 33°C | 26°C | 17°C / 41°C | 129 mm | 67% | 10 km/h |
| September | 29°C | 22°C | 13°C / 38°C | 120 mm | 69% | 10 km/h |
| October | 23°C | 15°C | 4°C / 32°C | 100 mm | 67% | 11 km/h |
| November | 18°C | 9°C | -2°C / 27°C | 75 mm | 66% | 10 km/h |
| December | 12°C | 4°C | -6°C / 23°C | 74 mm | 64% | 14 km/h |
Best time to visit Ikoma
The most comfortable time to visit Ikoma 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 1,290 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 169 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 Ikoma forecast for what is happening now.