Negombo weather in September 2024

Expect 88°F daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Negombo in September. Check more long-term weather averages for Negombo in September before you book your next holiday to Sri Lanka in 2024/2025.

  • 88°F maximum daytime temperature in September in Negombo88
    88°F max day temperature
  • 6 hours of sunshine per day
  • 12 days with some rainfall in September in Negombo12
    12 days with some rainfall
  • 77°F minimum night-time temperature in September in Negombo77
    77°F 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
  • 7.4 inches monthly rainfall in September in Negombo7.4
    7.4 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Negombo11
    11+ (Extreme) UV index
  • 81°F sea temperature in September in Negombo81
    81°F sea temperature

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The September weather guide for Sri Lanka (Negombo) 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)  |  Imperial (°F)

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More about Sri Lanka

How hot is it in Negombo in September?

Daytime temperatures usually reach 88°F in Negombo in September with high heat and humidity, falling to 77°F at night.

How sunny is it in Negombo in September?

There are normally 6 hours of bright sunshine each day in Negombo in September - that's 51% of daylight hours.

How warm is the sea around Negombo in September?

The average sea temperature around Negombo in September is 81°F.

Does it rain in Negombo in September?

There are usually 12 days with some rain in Negombo in September and the average monthly rainfall is 7.4 inches.

Negombo September sunrise & sunset times

Browse the sunrise and sunset times for Negombo in September 2024. Select a month to view Negombo sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st September 2024 06:03 18:18
Sunday, 15th September 2024 06:01 18:10
Monday, 30th September 2024 05:59 18:02

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