Sri Lanka weather in May
In May, popular resorts in Sri Lanka (Colombo, Galle, Negombo) average 29°C by day and 26°C at night, and the sea is about 29°C. On average 224 mm of rain falls during the month.
That is 1°C cooler than in April, and in June days average 28°C.
It is hot: ideal beach and swimming weather. The sea is warm and pleasant for swimming.
Warmest resorts in Sri Lanka in May
| Place | Day | Night | Sea | Rain |
|---|---|---|---|---|
| Vakarai | 32°C | 25°C | 30°C | 105 mm |
| Trincomalee | 32°C | 27°C | 30°C | 104 mm |
| Kalmunai | 31°C | 27°C | 30°C | 116 mm |
| Batticaloa | 31°C | 27°C | 30°C | 116 mm |
| Mullaittivu | 31°C | 28°C | 30°C | 92 mm |
| Keppapularu | 31°C | 28°C | 30°C | 92 mm |
| Mannar | 31°C | 28°C | 30°C | 75 mm |
| Jaffna | 31°C | 28°C | 30°C | 78 mm |
| Pottuvil | 31°C | 27°C | 29°C | 131 mm |
| Eravur Town | 31°C | 28°C | 30°C | 127 mm |
| Point Pedro | 31°C | 29°C | 30°C | 91 mm |
| Valvettithurai | 31°C | 29°C | 30°C | 91 mm |
Sri Lanka weather in other months
See also
FAQ
Is it warm in Sri Lanka in May?
In May, popular resorts in Sri Lanka (Colombo, Galle, Negombo) average 29°C by day and 26°C at night, and the sea is about 29°C. On average 224 mm of rain falls during the month. It is hot: ideal beach and swimming weather.
What is the sea temperature in Sri Lanka in May?
About 29°C on average. The warmest water is in Vakarai (30°C).
Where is it warmest in Sri Lanka in May?
The warmest place is Vakarai (32°C by day), followed by Trincomalee (32°C) and Kalmunai (31°C).
Does it rain in Sri Lanka in May?
On average 224 mm of rain falls in the month. It is a fairly wet month, so pack a jacket.
Long-term averages from NASA POWER data (MERRA-2, 2001-2020 reanalysis, CC BY 4.0). Sea temperature is the average water surface temperature at the nearest grid point over the sea. This is climate, not a forecast for a specific day.