Unawatuna weather in September 2019

• 29
  29°C max day temperature
• 6
  6 hours of sunshine per day
• 12
  12 days with some rainfall
• 24
  24°C min night temperature
• 12
  12 hours of daylight per day
• H
  High heat & humidity
• 249
  249 mm of monthly rainfall
• 11
  11+ (Extreme) UV index
• 28
  28°C sea temperature

Going to Unawatuna? Find the best month to visit Unawatuna based on the weather.

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Expect 29°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Unawatuna in September. Check more long-term weather averages for Unawatuna in September before you book your next holiday to Sri Lanka in 2019/2020.

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The September 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.

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

Guide to Unawatuna weather in September

The average maximum daytime temperature in Unawatuna in September is a warm 29°C (84°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 49% of the 12 hours of daylight.

Expect 249mm (9.8 inches) of rainfall across the whole of September with 12 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 September is 28°C (82°F).

Unawatuna sunrise & sunset times for September 2019

Browse the sunrise & sunset times for Unawatuna in September 2019. Select a month to view Unawatuna sunrise & sunset times for the next twelve months.

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Popular Sri Lanka destinations

Below are average maximum temperatures at popular destinations in Sri Lanka in September. Select a destination to see more weather parameters.

• 31
  Negombo
• 30
  Bentota
• 30
  Beruwela
• 30
  Colombo
• 30
  Kalutara
• 30
  Wadduwa
• 30
  Yala
• 29
  Galle

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