Weatheo

Katsushika-ku Weather by Month

Average temperatures, rainfall and humidity for Katsushika-ku, Japan, month by month, built from OpenWeather’s historical records. Use it to see what a typical Katsushika-ku month looks like before you travel — then check the live Katsushika-ku forecast for the days ahead.

Warmest month

August

32°C average high

Coolest month

January

2°C average low

Wettest month

September

157 mm of rain

Driest month

January

28 mm of rain

Average temperature and rainfall in Katsushika-ku by month

Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.

MonthAvg highAvg lowRecord low / highRainfallHumidityWind
January10°C2°C-9°C / 18°C
28 mm
55%13 km/h
February11°C3°C-5°C / 23°C
44 mm
57%14 km/h
March15°C7°C-3°C / 27°C
83 mm
62%15 km/h
April19°C12°C1°C / 29°C
104 mm
66%15 km/h
May24°C17°C7°C / 33°C
106 mm
69%14 km/h
June27°C20°C13°C / 37°C
151 mm
73%12 km/h
July31°C24°C18°C / 38°C
112 mm
75%12 km/h
August32°C26°C17°C / 40°C
122 mm
72%13 km/h
September28°C22°C13°C / 37°C
157 mm
76%13 km/h
October22°C16°C5°C / 33°C
115 mm
70%13 km/h
November17°C10°C-1°C / 27°C
63 mm
64%12 km/h
December12°C4°C-6°C / 23°C
36 mm
56%12 km/h

Best time to visit Katsushika-ku

The most comfortable time to visit Katsushika-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 September, totalling about 1,120 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 157 mm, roughly 6× the rainfall of the driest month (January).

Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Katsushika-ku forecast for what is happening now.

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