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Sano Weather by Month
Average temperatures, rainfall and humidity for Sano, Japan, month by month, built from OpenWeather’s historical records. Use it to see what a typical Sano month looks like before you travel — then check the live Sano forecast for the days ahead.
Warmest month
August
32°C average high
Coolest month
February
-1°C average low
Wettest month
September
153 mm of rain
Driest month
January
11 mm of rain
Average temperature and rainfall in Sano 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 | 0°C | -14°C / 18°C | 11 mm | 57% | 9 km/h |
| February | 9°C | -1°C | -18°C / 23°C | 35 mm | 56% | 10 km/h |
| March | 14°C | 3°C | -14°C / 26°C | 85 mm | 61% | 9 km/h |
| April | 19°C | 8°C | -4°C / 30°C | 121 mm | 64% | 9 km/h |
| May | 24°C | 14°C | -2°C / 36°C | 82 mm | 65% | 8 km/h |
| June | 26°C | 18°C | 5°C / 41°C | 142 mm | 74% | 7 km/h |
| July | 31°C | 23°C | 14°C / 40°C | 136 mm | 75% | 7 km/h |
| August | 32°C | 24°C | 12°C / 41°C | 115 mm | 75% | 8 km/h |
| September | 28°C | 20°C | 6°C / 38°C | 153 mm | 77% | 7 km/h |
| October | 21°C | 12°C | -5°C / 33°C | 107 mm | 74% | 7 km/h |
| November | 16°C | 7°C | -7°C / 27°C | 34 mm | 68% | 8 km/h |
| December | 11°C | 2°C | -12°C / 23°C | 17 mm | 61% | 9 km/h |
Best time to visit Sano
The most comfortable time to visit Sano 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 September, totalling about 1,038 mm a year.
Travellers who prefer heat should aim for August, when highs average 32°C. September is the month to avoid if rain would spoil your plans — it averages 153 mm, roughly 14× the rainfall of the driest month (January).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Sano forecast for what is happening now.
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