Sri Lanka
Across 3 destinations in Sri Lanka, the warmest is Jaffna at 31 °C in Apr, the coolest is Dehiwala-Mount Lavinia at 31 °C, and annual rainfall ranges from 1,106 mm in Jaffna to 2,773 mm in Dehiwala-Mount Lavinia. Figures are 1991–2020 climate normals.
3 destinations with full climate records · 67 awaiting data
The rangeHow much Sri Lanka varies
The 3 destinations we cover in Sri Lanka differ by less than 3 °C at the peak of the year, so the choice between them is not really a choice about heat.
Rainfall separates them more than temperature does: Dehiwala-Mount Lavinia averages 2,773 mm a year against 1,106 mm in Jaffna.
DestinationsThe year in each of the largest
All of themEvery destination with a full record
| Destination | Warmest month | Peak avg high | Annual rainfall |
|---|---|---|---|
| Colombo | Mar | 31 °C | 2,587 mm |
| Dehiwala-Mount Lavinia | Mar | 31 °C | 2,773 mm |
| Jaffna | Apr | 31 °C | 1,106 mm |
Awaiting climate data
These destinations are in our database but do not yet have complete 30-year records, so they have no page yet.
- Negombo
- Pita Kotte
- Sri Jayewardenepura Kotte
- Kandy
- Trincomalee
- Kalmunai
- Galle
- Point Pedro
- Batticaloa
- Katunayaka
- Ambalantota
- Valvedditturai
- Matara
- Battaramulla South
- Dambulla
- Kolonnawa
- Kotikawatta
- Anuradhapura
- Vavuniya
- Beliatta
- Hendala
- Ambalangoda
- Ratnapura
- Badulla
- Pottuvil
- Puttalam
- Devinuwara
- Ampara
- Welisara
- Kalutara
- Bentota
- Matale
- Mannar
- Homagama
- Beruwala
- Panadura
- Mulleriyawa
- Kandana
- Ja Ela
- Wattala
- Mullaittivu
- Kelaniya
- Peliyagoda
- Kurunegala
- Nuwara Eliya
- Chilaw
- Gampola
- Eravur Town
- Hanwella Ihala
- Weligama
- Vakarai
- Kataragama
- Hambantota
- Kegalle
- Hatton
- Polonnaruwa
- Kilinochchi
- Tangalle
- Monaragala
- Wellawaya
- Gampaha
- Horana South
- Keppapularu
- Wattegama
- Minuwangoda
- Horawala Junction
- Kuliyapitiya
Data sources and method
- ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
- Open-Meteo — Open-Meteo.com. CC BY 4.0
- NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
- GeoNames — GeoNames.org. CC BY 4.0
- Normal period
- 1991–2020
- Dataset version
- era5-1991-2020-scores1.1
- Last processed
Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: warmest month, annual rainfall total. Full formulas are on the methodology page.
Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.