Trincomalee weather in May 2025

Expect 35°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Trincomalee in May. Check more long-term weather averages for Trincomalee in May before you book your next holiday to Sri Lanka in 2025/2026.

  • 35°C maximum daytime temperature in May in Trincomalee35
    35°C max day temperature
  • 7 hours of sunshine per day
  • 4 days with some rainfall in May in Trincomalee4
    4 days with some rainfall
  • 26°C minimum night-time temperature in May in Trincomalee26
    26°C min night temperature
  • 13 hours of daylight per day in May in Trincomalee13
    13 hours of daylight per day
  • Very high heat & humidity in May in TrincomaleeVH
    Very High heat & humidity
  • 49 mm monthly rainfall in May in Trincomalee49
    49 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in Trincomalee11
    11+ (Extreme) UV index
  • 30°C sea temperature in May in Trincomalee30
    30°C sea temperature

More about Trincomalee

Trincomalee by month

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The May weather guide for Sri Lanka (Trincomalee) 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 Trincomalee in May?

Daytime temperatures usually reach 35°C in Trincomalee in May with very high heat and humidity, falling to 26°C at night.

How sunny is it in Trincomalee in May?

There are normally 7 hours of bright sunshine each day in Trincomalee in May - that's 58% of daylight hours.

How warm is the sea around Trincomalee in May?

The average sea temperature around Trincomalee in May is 30°C.

Does it rain in Trincomalee in May?

There are usually 4 days with some rain in Trincomalee in May and the average monthly rainfall is 49mm.

Trincomalee May sunrise & sunset times

Browse the sunrise and sunset times for Trincomalee in May 2025. Select a month to view Trincomalee sunrise and sunset times for the next 12 months.


Date Sunrise times Sunset times
Thursday, 1st May 2025 05:49 18:15
Friday, 16th May 2025 05:46 18:17
Saturday, 31st May 2025 05:45 18:20

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