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Nishitōkyō Weather by Month
Average temperatures, rainfall and humidity for Nishitōkyō, Japan, month by month, built from OpenWeather’s historical records. Use it to see what a typical Nishitōkyō month looks like before you travel — then check the live Nishitōkyō forecast for the days ahead.
Warmest month
August
32°C average high
Coolest month
January
1°C average low
Wettest month
June
166 mm of rain
Driest month
January
32 mm of rain
Average temperature and rainfall in Nishitōkyō 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 | -9°C / 17°C | 32 mm | 55% | 12 km/h |
| February | 11°C | 2°C | -7°C / 23°C | 47 mm | 58% | 13 km/h |
| March | 15°C | 7°C | -3°C / 28°C | 87 mm | 63% | 14 km/h |
| April | 19°C | 11°C | 1°C / 28°C | 103 mm | 66% | 14 km/h |
| May | 24°C | 16°C | 8°C / 33°C | 119 mm | 69% | 14 km/h |
| June | 27°C | 20°C | 13°C / 37°C | 166 mm | 74% | 11 km/h |
| July | 31°C | 24°C | 17°C / 38°C | 111 mm | 76% | 12 km/h |
| August | 32°C | 25°C | 18°C / 39°C | 133 mm | 73% | 12 km/h |
| September | 28°C | 21°C | 11°C / 36°C | 141 mm | 77% | 11 km/h |
| October | 22°C | 15°C | 5°C / 32°C | 150 mm | 75% | 11 km/h |
| November | 17°C | 9°C | -1°C / 26°C | 66 mm | 68% | 10 km/h |
| December | 12°C | 4°C | -6°C / 23°C | 41 mm | 60% | 11 km/h |
Best time to visit Nishitōkyō
The most comfortable time to visit Nishitōkyō 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 1,197 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 166 mm, roughly 5× the rainfall of the driest month (January).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Nishitōkyō forecast for what is happening now.
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