Your holiday weather, at a glance

Sri Lanka in May: where is it warmest?

In May, Jaffna is the warmest place with 31 °C by day, Kandy the coolest with 28 °C. 5 of 8 destinations have good holiday weather.

All destinations in May, warmest first

Long-term averages for the month: daytime high, sea, sunshine and rainy days.

PlaceScoreAirSeaSunRain days
Jaffna6131°30°8 h8
Sigiriya3131°–7 h19
Negombo6830°29°5 h29
Sri Jayawardenepura Kotte6730°29°5 h30
Colombo4130°29°5 h29
Galle7129°29°6 h28
Bentota6729°29°5 h30
Kandy5528°–6 h26

Sri Lanka in May: quick answers

Sri Lanka in May: where is it warmest?

The warmest places in May are Jaffna (31 °C), Sigiriya (31 °C) and Negombo (30 °C).

Sri Lanka in May: where is the sea warmest?

The sea is warmest at Jaffna (30 °C), Negombo (29 °C) and Sri Jayawardenepura Kotte (29 °C).

Sri Lanka in May: where is the weather best?

The best holiday weather in May – warm, sunny and dry – is in Galle, Negombo and Sri Jayawardenepura Kotte.

Sri Lanka month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences