Overview
Galle is in Sri Lanka. The figures below are long-term monthly averages (2014-2023), not a forecast.
- Warmest month: March, with daytime highs around 30°C.
- Coolest month: September, with daytime highs around 28°C.
- Driest month: February, about 105 mm of rain.
- Wettest month: November, about 392 mm of rain.
- Sunniest month: February, about 11 hr of sunshine per day.
- Warmest sea: April, around 30°C.
Best months by holiday type
- Beach (warm air and sea)
- January, February, March, April, May, June, July, August, September, October, November, and December
Judged by simple climate rules applied to the monthly averages, not by local knowledge.
Climate by month
| Month | Day high | Night low | Sea | Rain (mm) | Rainy days | Sun (h/day) | Humidity | Wind (km/h) |
|---|---|---|---|---|---|---|---|---|
| January | 29°C | 23°C | 28°C | 109 mm | 17 | 10.6 | 83% | 6 km/h |
| February | 30°C | 24°C | 28°C | 105 mm | 16 | 11.0 | 81% | 7 km/h |
| March | 30°C | 25°C | 29°C | 106 mm | 20 | 10.8 | 80% | 8 km/h |
| April | 30°C | 25°C | 30°C | 176 mm | 26 | 10.7 | 84% | 8 km/h |
| May | 29°C | 26°C | 29°C | 385 mm | 29 | 9.1 | 86% | 13 km/h |
| June | 29°C | 26°C | 28°C | 254 mm | 29 | 10.4 | 85% | 17 km/h |
| July | 28°C | 26°C | 28°C | 241 mm | 29 | 10.4 | 85% | 17 km/h |
| August | 28°C | 25°C | 28°C | 264 mm | 29 | 10.2 | 85% | 16 km/h |
| September | 28°C | 25°C | 28°C | 322 mm | 29 | 9.4 | 86% | 14 km/h |
| October | 28°C | 25°C | 28°C | 364 mm | 29 | 8.8 | 87% | 11 km/h |
| November | 29°C | 24°C | 29°C | 392 mm | 26 | 8.4 | 87% | 9 km/h |
| December | 29°C | 24°C | 29°C | 222 mm | 23 | 9.1 | 86% | 7 km/h |
Similar destinations
Data and sources
- Air climate: Open-Meteo Historical Weather API (ERA5 / ERA5-Land reanalysis), 2014-2023. CC BY 4.0 (Open-Meteo); underlying ERA5 data: Copernicus licence
- Sea temperature: NOAA Coral Reef Watch CoralTemp v3.1 monthly SST (5 km), 2014-2023.
- Last updated October 8, 2026.