Sanya weather in September 2019

31
31°C max day temperature
6
6 hours of sunshine per day
18
18 days with some rainfall
24
24°C min night temperature
12
12 hours of daylight per day
H
High heat & humidity
275
275 mm of monthly rainfall
11
11+ (Extreme) UV index
29
29°C sea temperature

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

The September weather guide for Sanya, China shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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Metric (°C / mm) | Imperial (°F / inches)

Guide to Sanya weather in September

The average maximum daytime temperature in Sanya in September is a hot 31°C (88°F) with high heat & humidity. The average night-time temperature is usually a warm 24°C (75°F). There are usually 6 hours of bright sunshine each day, which represents 51% of the 12 hours of daylight.

Expect 275mm (10.8 inches) of rainfall across the whole of September with 18 days with some rain falling. Maximum UV levels will be extreme (11+ UV index) at midday when the skies are clear.

The average sea temperature in and around Sanya in September is 29°C (84°F).