Weatheo

Dandong Weather by Month

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

Warmest month

July

28°C average high

Coolest month

January

-13°C average low

Wettest month

July

130 mm of rain

Driest month

January

1 mm of rain

Average temperature and rainfall in Dandong 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
January-3°C-13°C-26°C / 7°C
1 mm
66%10 km/h
February1°C-9°C-23°C / 12°C
5 mm
63%11 km/h
March9°C-1°C-17°C / 22°C
30 mm
58%11 km/h
April16°C5°C-7°C / 26°C
31 mm
55%12 km/h
May21°C11°C2°C / 30°C
50 mm
64%11 km/h
June25°C16°C9°C / 33°C
59 mm
76%9 km/h
July28°C21°C13°C / 36°C
130 mm
85%9 km/h
August27°C20°C7°C / 37°C
105 mm
85%8 km/h
September23°C14°C2°C / 29°C
40 mm
80%8 km/h
October16°C6°C-10°C / 28°C
27 mm
71%10 km/h
November7°C-1°C-18°C / 21°C
28 mm
69%11 km/h
December-2°C-10°C-26°C / 9°C
6 mm
68%10 km/h

Best time to visit Dandong

The most comfortable time to visit Dandong is generally May to June and September, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around July, totalling about 511 mm a year.

Travellers who prefer heat should aim for July, when highs average 28°C. July is the month to avoid if rain would spoil your plans — it averages 130 mm, roughly 130× the rainfall of the driest month (January).

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

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