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Hadano Weather by Month
Average temperatures, rainfall and humidity for Hadano, Japan, month by month, built from OpenWeather’s historical records. Use it to see what a typical Hadano month looks like before you travel — then check the live Hadano forecast for the days ahead.
Warmest month
August
31°C average high
Coolest month
January
1°C average low
Wettest month
June
169 mm of rain
Driest month
January
38 mm of rain
Average temperature and rainfall in Hadano 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 | -12°C / 18°C | 38 mm | 58% | 10 km/h |
| February | 11°C | 2°C | -9°C / 23°C | 49 mm | 58% | 11 km/h |
| March | 15°C | 6°C | -7°C / 27°C | 95 mm | 62% | 12 km/h |
| April | 19°C | 11°C | -3°C / 27°C | 133 mm | 64% | 12 km/h |
| May | 23°C | 15°C | 5°C / 31°C | 102 mm | 67% | 11 km/h |
| June | 26°C | 19°C | 11°C / 35°C | 169 mm | 75% | 10 km/h |
| July | 30°C | 23°C | 14°C / 37°C | 144 mm | 76% | 10 km/h |
| August | 31°C | 25°C | 18°C / 38°C | 133 mm | 74% | 11 km/h |
| September | 28°C | 21°C | 8°C / 36°C | 136 mm | 74% | 11 km/h |
| October | 22°C | 15°C | 3°C / 32°C | 130 mm | 72% | 10 km/h |
| November | 17°C | 9°C | -1°C / 26°C | 80 mm | 67% | 10 km/h |
| December | 13°C | 3°C | -9°C / 23°C | 52 mm | 60% | 10 km/h |
Best time to visit Hadano
The most comfortable time to visit Hadano is generally May to June 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 1,262 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 169 mm, roughly 4× the rainfall of the driest month (January).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Hadano forecast for what is happening now.