- Kisarazu ›
- Weather by month
Kisarazu Weather by Month
Average temperatures, rainfall and humidity for Kisarazu, Japan, month by month, built from OpenWeather’s historical records. Use it to see what a typical Kisarazu month looks like before you travel — then check the live Kisarazu forecast for the days ahead.
Warmest month
August
31°C average high
Coolest month
January
3°C average low
Wettest month
June
159 mm of rain
Driest month
January
31 mm of rain
Average temperature and rainfall in Kisarazu 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 | -4°C / 18°C | 31 mm | 58% | 17 km/h |
| February | 11°C | 4°C | -3°C / 22°C | 53 mm | 61% | 19 km/h |
| March | 15°C | 7°C | -1°C / 27°C | 96 mm | 66% | 19 km/h |
| April | 19°C | 12°C | 3°C / 27°C | 116 mm | 71% | 19 km/h |
| May | 23°C | 17°C | 8°C / 31°C | 111 mm | 75% | 18 km/h |
| June | 26°C | 20°C | 14°C / 36°C | 159 mm | 82% | 16 km/h |
| July | 30°C | 24°C | 18°C / 38°C | 121 mm | 83% | 16 km/h |
| August | 31°C | 26°C | 18°C / 37°C | 123 mm | 80% | 18 km/h |
| September | 28°C | 22°C | 14°C / 35°C | 142 mm | 80% | 17 km/h |
| October | 22°C | 16°C | 8°C / 32°C | 131 mm | 76% | 17 km/h |
| November | 17°C | 11°C | -1°C / 27°C | 67 mm | 68% | 16 km/h |
| December | 12°C | 5°C | -2°C / 23°C | 38 mm | 59% | 16 km/h |
Best time to visit Kisarazu
The most comfortable time to visit Kisarazu 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 1,190 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 159 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 Kisarazu forecast for what is happening now.