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Shinagawa-ku Weather by Month
Average temperatures, rainfall and humidity for Shinagawa-ku, Japan, month by month, built from OpenWeather’s historical records. Use it to see what a typical Shinagawa-ku month looks like before you travel — then check the live Shinagawa-ku forecast for the days ahead.
Warmest month
August
32°C average high
Coolest month
January
2°C average low
Wettest month
October
169 mm of rain
Driest month
January
40 mm of rain
Average temperature and rainfall in Shinagawa-ku 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 | 2°C | -4°C / 18°C | 40 mm | 55% | 17 km/h |
| February | 11°C | 3°C | -4°C / 22°C | 58 mm | 57% | 19 km/h |
| March | 15°C | 7°C | -2°C / 27°C | 96 mm | 63% | 19 km/h |
| April | 19°C | 12°C | 2°C / 28°C | 110 mm | 67% | 20 km/h |
| May | 24°C | 17°C | 8°C / 32°C | 112 mm | 71% | 19 km/h |
| June | 26°C | 20°C | 13°C / 37°C | 161 mm | 77% | 16 km/h |
| July | 31°C | 24°C | 18°C / 38°C | 118 mm | 78% | 16 km/h |
| August | 32°C | 26°C | 18°C / 39°C | 123 mm | 76% | 18 km/h |
| September | 28°C | 22°C | 14°C / 36°C | 136 mm | 78% | 17 km/h |
| October | 22°C | 16°C | 9°C / 32°C | 169 mm | 75% | 16 km/h |
| November | 17°C | 10°C | -1°C / 26°C | 75 mm | 67% | 16 km/h |
| December | 12°C | 5°C | -2°C / 23°C | 47 mm | 59% | 16 km/h |
Best time to visit Shinagawa-ku
The most comfortable time to visit Shinagawa-ku 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 October, totalling about 1,246 mm a year.
Travellers who prefer heat should aim for August, when highs average 32°C. October 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 Shinagawa-ku forecast for what is happening now.