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Nishio Weather by Month
Average temperatures, rainfall and humidity for Nishio, Japan, month by month, built from OpenWeather's historical records. Use it to see what a typical Nishio month looks like before you travel — then check the live Nishio forecast for the days ahead.
Warmest month
August
33°C average high
Coolest month
January
3°C average low
Wettest month
June
167 mm of rain
Driest month
January
41 mm of rain
Average temperature and rainfall in Nishio 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 | 3°C | -5°C / 17°C | 41 mm | 67% | 20 km/h |
| February | 10°C | 4°C | -4°C / 19°C | 107 mm | 65% | 20 km/h |
| March | 14°C | 7°C | -1°C / 24°C | 107 mm | 66% | 18 km/h |
| April | 19°C | 12°C | 2°C / 26°C | 146 mm | 69% | 16 km/h |
| May | 23°C | 16°C | 8°C / 33°C | 105 mm | 72% | 14 km/h |
| June | 27°C | 20°C | 14°C / 36°C | 167 mm | 77% | 13 km/h |
| July | 31°C | 25°C | 19°C / 40°C | 133 mm | 78% | 13 km/h |
| August | 33°C | 26°C | 20°C / 41°C | 117 mm | 72% | 14 km/h |
| September | 29°C | 22°C | 15°C / 38°C | 123 mm | 74% | 14 km/h |
| October | 23°C | 17°C | 7°C / 34°C | 107 mm | 73% | 15 km/h |
| November | 18°C | 11°C | -1°C / 26°C | 52 mm | 66% | 16 km/h |
| December | 12°C | 5°C | -2°C / 20°C | 48 mm | 66% | 19 km/h |
Best time to visit Nishio
The most comfortable time to visit Nishio 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 1253 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 167 mm, roughly 4× the rainfall of January.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Nishio forecast for what is happening now.