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Kasugai Weather by Month
Average temperatures, rainfall and humidity for Kasugai, Japan, month by month, built from OpenWeather's historical records. Use it to see what a typical Kasugai month looks like before you travel — then check the live Kasugai forecast for the days ahead.
Warmest month
August
34°C average high
Coolest month
January
1°C average low
Wettest month
July
158 mm of rain
Driest month
January
41 mm of rain
Average temperature and rainfall in Kasugai 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 | 1°C | -9°C / 18°C | 41 mm | 72% | 12 km/h |
| February | 10°C | 2°C | -11°C / 21°C | 62 mm | 68% | 13 km/h |
| March | 15°C | 5°C | -6°C / 24°C | 110 mm | 67% | 13 km/h |
| April | 20°C | 11°C | -2°C / 31°C | 140 mm | 68% | 12 km/h |
| May | 25°C | 15°C | 3°C / 37°C | 102 mm | 68% | 10 km/h |
| June | 28°C | 20°C | 9°C / 39°C | 150 mm | 74% | 9 km/h |
| July | 32°C | 24°C | 17°C / 40°C | 158 mm | 75% | 9 km/h |
| August | 34°C | 26°C | 16°C / 42°C | 132 mm | 71% | 10 km/h |
| September | 30°C | 22°C | 11°C / 39°C | 115 mm | 73% | 9 km/h |
| October | 23°C | 15°C | 0°C / 34°C | 100 mm | 72% | 10 km/h |
| November | 17°C | 9°C | -3°C / 27°C | 60 mm | 70% | 11 km/h |
| December | 12°C | 4°C | -10°C / 21°C | 53 mm | 72% | 12 km/h |
Best time to visit Kasugai
The most comfortable time to visit Kasugai 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 July, totalling about 1223 mm a year.
Travellers who prefer heat should aim for August, when highs average 34°C. July is the month to avoid if rain would spoil your plans — it averages 158 mm, roughly 4× the rainfall of January.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Kasugai forecast for what is happening now.