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Asaka Weather by Month
Average temperatures, rainfall and humidity for Asaka, Japan, month by month, built from OpenWeather's historical records. Use it to see what a typical Asaka month looks like before you travel — then check the live Asaka forecast for the days ahead.
Warmest month
August
32°C average high
Coolest month
January
2°C average low
Wettest month
June
157 mm of rain
Driest month
January
28 mm of rain
Average temperature and rainfall in Asaka 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 | -13°C / 18°C | 28 mm | 54% | 13 km/h |
| February | 11°C | 3°C | -4°C / 23°C | 42 mm | 57% | 14 km/h |
| March | 15°C | 7°C | -3°C / 28°C | 79 mm | 61% | 14 km/h |
| April | 19°C | 11°C | 1°C / 28°C | 103 mm | 64% | 15 km/h |
| May | 24°C | 16°C | 8°C / 33°C | 101 mm | 67% | 15 km/h |
| June | 27°C | 20°C | 13°C / 37°C | 157 mm | 72% | 12 km/h |
| July | 31°C | 24°C | 18°C / 38°C | 110 mm | 72% | 12 km/h |
| August | 32°C | 25°C | 18°C / 40°C | 128 mm | 70% | 13 km/h |
| September | 28°C | 22°C | 13°C / 37°C | 135 mm | 75% | 13 km/h |
| October | 22°C | 15°C | 5°C / 32°C | 125 mm | 72% | 12 km/h |
| November | 17°C | 10°C | -1°C / 26°C | 59 mm | 65% | 11 km/h |
| December | 12°C | 4°C | -6°C / 23°C | 33 mm | 57% | 12 km/h |
Best time to visit Asaka
The most comfortable time to visit Asaka is generally April to May and 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 1101 mm a year.
Travellers who prefer heat should aim for August, when highs average 32°C. June is the month to avoid if rain would spoil your plans — it averages 157 mm, roughly 6× the rainfall of January.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Asaka forecast for what is happening now.