Colombo weather in September 2024

Expect 30°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Colombo in September. Check more long-term weather averages for Colombo in September before you book your next holiday to Sri Lanka in 2024/2025.

  • 30°C maximum daytime temperature in September in Colombo30
    30°C max day temperature
  • 6 hours of sunshine per day
  • 14 days with some rainfall in September in Colombo14
    14 days with some rainfall
  • 25°C minimum night-time temperature in September in Colombo25
    25°C min night temperature
  • 12 hours of daylight per day in September in Colombo12
    12 hours of daylight per day
  • High heat & humidity in September in ColomboH
    High heat & humidity
  • 236 mm monthly rainfall in September in Colombo236
    236 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Colombo11
    11+ (Extreme) UV index
  • 28°C sea temperature in September in Colombo28
    28°C sea temperature

More about Colombo

Colombo by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Sri Lanka

  • Book online with TUI & save up to 7% on holidays
  • FREE child places available for select holidays
  • Pay £0 deposits with direct debit & spread the cost

TUITUI deal finder

The September weather guide for Sri Lanka (Colombo) 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)

Back to top

More about Sri Lanka

How hot is it in Colombo in September?

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

How sunny is it in Colombo in September?

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

How warm is the sea around Colombo in September?

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

Does it rain in Colombo in September?

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

Colombo September sunrise & sunset times

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


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

Related posts

Popular travel offers

Explore holidays in the sun for less

Top ^