Colombo weather in May 2020

  • 31°C maximum daytime temperature in May in Colombo31
    31°C max day temperature
  • 6 hours of sunshine per day
  • 14 days with some rainfall in May in Colombo14
    14 days with some rainfall
  • 25°C minimum night-time temperature in May in Colombo25
    25°C min night temperature
  • 12 hours of daylight per day in May in Colombo12
    12 hours of daylight per day
  • Very high heat & humidity in May in ColomboVH
    Very High heat & humidity
  • 382 mm monthly rainfall in May in Colombo382
    382 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in Colombo11
    11+ (Extreme) UV index
  • 29°C sea temperature in May in Colombo29
    29°C sea temperature
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The May weather guide for Colombo, 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 Colombo weather in May

The average maximum daytime temperature in Colombo in May 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 382mm (15.0 inches) of rainfall across the whole of May with 14 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 Colombo in May is 29°C (84°F).

Colombo sunrise & sunset times for May 2020

Browse the sunrise & sunset times for Colombo in May 2020. Select a month to view Colombo sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2020 05:57 18:19
Saturday, 16th May 2020 05:54 18:20
Sunday, 31st May 2020 05:53 18:23
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Below are average maximum temperatures at popular destinations in Sri Lanka in May. Select a destination to see more weather parameters.

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