Kollam weather in September 2026

Expect daytime maximum temperatures of 30°C in Kollam, Kerala 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 274 mm of rainfall in the month.

  • 30°C maximum daytime temperature in September in Kollam30
    30°C max day temperature
  • 6 hours of sunshine per day
  • 12 days with some rainfall in September in Kollam12
    12 days with some rainfall
  • 24°C minimum night-time temperature in September in Kollam24
    24°C min night temperature
  • 12 hours of daylight per day in September in Kollam12
    12 hours of daylight per day
  • High heat & humidity in September in KollamH
    High heat & humidity
  • 274 mm monthly rainfall in September in Kollam274
    274 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Kollam11
    11+ (Extreme) UV index
  • 27°C sea temperature in September in Kollam27
    27°C sea temperature

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The September weather guide for Kerala (Kollam) 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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How hot is it in Kollam in September?

Daytime temperatures usually reach 29°C in Kollam in September with high heat and humidity, falling to 23°C at night.

How sunny is it in Kollam in September?

There are normally 6 hours of bright sunshine each day in Kollam in September - that's 48% of daylight hours.

How warm is the sea around Kollam in September?

The average sea temperature around Kollam in September is 27°C.

Does it rain in Kollam in September?

There are usually 13 days with some rain in Kollam in September and the average monthly rainfall is 316mm.

Kollam September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st September 2026 06:15 18:32
Tuesday, 15th September 2026 06:14 18:24
Wednesday, 30th September 2026 06:12 18:15

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