The climate in Cao Bằng during May can be summarized as hot, humid and wet.
May is in the spring in Cao Bằng and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 22°C (71°F) is normal.
Daytime temperature | 29.7°C 85.5°F |
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Nightly temperature | 21.5°C 70.7°F |
Average temperature | 25.6°C 78.1°F |
Daily sunshine | 5.9 hrs |
Avg rainfall | 175 mm 6.9 ins |
Rainy days | 15 days |
Sea temperature | 26.8°C 80.2°F |
Humidity | 79% |
Windspeed | 7.6kph 5 mph |
On average May is the 4th wettest month of the year in Cao Bằng with around 175mm 6.9 inches of rain making it a wet time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.9 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Cao Bằng in May 2025.
Hottest month: | July | 31.1°C 88°F |
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Driest month: | December | 20mm 0.8ins |
Sunniest month: | September | 6hrs |
Coldest month: | January | 16.5°C 61.7°F |
Wettest month: | August | 256mm 10.1ins |