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Negombo weather in May 2025
Expect 32°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Negombo in May. Check more long-term weather averages for Negombo in May before you book your next holiday to Sri Lanka in 2025/2026.
- 3232°C max day temperature
- 7 hours of sunshine per day
- 1212 days with some rainfall
- 2525°C min night temperature
- 1212 hours of daylight per day
- VHVery High heat & humidity
- 298298 mm of monthly rainfall
- 1111+ (Extreme) UV index
- 2929°C sea temperature
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Recommended for Sri Lanka
The May weather guide for Sri Lanka (Negombo) 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)
More about Sri Lanka
How hot is it in Negombo in May?
Daytime temperatures usually reach 32°C in Negombo in May with very high heat and humidity, falling to 25°C at night.
How sunny is it in Negombo in May?
There are normally 7 hours of bright sunshine each day in Negombo in May - that's 52% of daylight hours.
How warm is the sea around Negombo in May?
The average sea temperature around Negombo in May is 29°C.
Does it rain in Negombo in May?
There are usually 12 days with some rain in Negombo in May and the average monthly rainfall is 298mm.
Negombo May sunrise & sunset times
Browse the sunrise and sunset times for Negombo in May 2025. Select a month to view Negombo sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Thursday, 1st May 2025 | 05:57 | 18:19 |
Friday, 16th May 2025 | 05:53 | 18:21 |
Saturday, 31st May 2025 | 05:53 | 18:24 |
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