Weatheo

Hai’an Weather by Month

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

Warmest month

July

32°C average high

Coolest month

January

0°C average low

Wettest month

July

153 mm of rain

Driest month

December

30 mm of rain

Average temperature and rainfall in Hai’an 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
January8°C0°C-14°C / 21°C
34 mm
70%13 km/h
February10°C1°C-10°C / 25°C
92 mm
72%14 km/h
March15°C5°C-5°C / 31°C
58 mm
72%14 km/h
April20°C10°C-1°C / 34°C
66 mm
72%14 km/h
May26°C16°C5°C / 40°C
71 mm
70%14 km/h
June29°C21°C12°C / 39°C
108 mm
75%13 km/h
July32°C24°C17°C / 43°C
153 mm
83%14 km/h
August31°C24°C18°C / 41°C
131 mm
83%13 km/h
September27°C20°C12°C / 36°C
90 mm
82%13 km/h
October22°C14°C3°C / 38°C
50 mm
74%13 km/h
November16°C8°C-8°C / 31°C
43 mm
70%13 km/h
December10°C2°C-9°C / 24°C
30 mm
67%13 km/h

Best time to visit Hai’an

The most comfortable time to visit Hai’an 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 July, totalling about 925 mm a year.

Travellers who prefer heat should aim for July, when highs average 32°C. July is the month to avoid if rain would spoil your plans — it averages 153 mm, roughly 5× the rainfall of the driest month (December).

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

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