Galle weather in September 2026

Expect daytime maximum temperatures of 29°C in Galle, Sri Lanka in September and high heat and humidity based on long-term weather averages. There are 6 hours of sunshine per day on average with 12 days with some rainfall and typically 249 mm of rainfall in the month.

  • 29°C maximum daytime temperature in September in Galle29
    29°C max day temperature
  • 6 hours of sunshine per day
  • 12 days with some rainfall in September in Galle12
    12 days with some rainfall
  • 24°C minimum night-time temperature in September in Galle24
    24°C min night temperature
  • 12 hours of daylight per day in September in Galle12
    12 hours of daylight per day
  • High heat & humidity in September in GalleH
    High heat & humidity
  • 249 mm monthly rainfall in September in Galle249
    249 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Galle11
    11+ (Extreme) UV index
  • 28°C sea temperature in September in Galle28
    28°C sea temperature

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The September weather guide for Sri Lanka (Galle) 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)

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More about Sri Lanka

How hot is it in Galle in September?

Daytime temperatures usually reach 30°C in Galle in September with high heat and humidity, falling to 25°C at night.

How sunny is it in Galle in September?

There are normally 6 hours of bright sunshine each day in Galle in September - that's 50% of daylight hours.

How warm is the sea around Galle in September?

The average sea temperature around Galle in September is 28°C.

Does it rain in Galle in September?

There are usually 14 days with some rain in Galle in September and the average monthly rainfall is 236mm.

Galle September sunrise & sunset times

Browse the sunrise and sunset times for Galle in September 2026. Select a month to view Galle sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st September 2026 06:02 18:16
Tuesday, 15th September 2026 06:00 18:09
Wednesday, 30th September 2026 05:57 18:01

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