Unawatuna weather in December 2019

29
29°C max day temperature
7
7 hours of sunshine per day
10
10 days with some rainfall
22
22°C min night temperature
12
12 hours of daylight per day
H
High heat & humidity
181
181 mm of monthly rainfall
11
11 (Extreme) UV index
28
28°C sea temperature

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

The December weather guide for Unawatuna, Sri Lanka 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 Unawatuna weather in December

The average maximum daytime temperature in Unawatuna in December is a warm 29°C (84°F) with high heat & humidity. The average night-time temperature is usually a warm 22°C (72°F). There are usually 7 hours of bright sunshine each day, which represents 55% of the 12 hours of daylight.

Expect 181mm (7.1 inches) of rainfall across the whole of December with 10 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 Unawatuna in December is 28°C (82°F).