Negombo weather in September 2019

  • 31°C maximum daytime temperature in September in Negombo31
    31°C max day temperature
  • 6 hours of sunshine per day
  • 12 days with some rainfall in September in Negombo12
    12 days with some rainfall
  • 25°C minimum night-time temperature in September in Negombo25
    25°C min night temperature
  • 12 hours of daylight per day in September in Negombo12
    12 hours of daylight per day
  • High heat & humidity in September in NegomboH
    High heat & humidity
  • 187 mm monthly rainfall in September in Negombo187
    187 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Negombo11
    11+ (Extreme) UV index
  • 27°C sea temperature in September in Negombo27
    27°C sea temperature
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The September weather guide for Negombo, 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 Negombo weather in September

The average maximum daytime temperature in Negombo in September is a hot 31°C (88°F) with very high heat & humidity. The average night-time temperature is usually a warm 25°C (77°F). There are usually 6 hours of bright sunshine each day, which represents 51% of the 12 hours of daylight.

Expect 187mm (7.4 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 Negombo in September is 27°C (81°F).

Negombo sunrise & sunset times for September 2019

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st September 2019 06:03 18:18
Sunday, 15th September 2019 06:01 18:11
Monday, 30th September 2019 05:59 18:03
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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.

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