Colombo Weather by Month
Twelve months of Colombo, Sri Lanka weather — averages from 2006–2025.
Colombo's warmest month is February (average high 31.3°C (88.3°F)) and the coolest is August (28.4°C (83.1°F)). The most rain falls in October (about 383 mm), and February is the driest (about 63 mm). February is the sunniest, with about 10.9 hours of sunshine a day.
Best months to visit Colombo
Ranked within Colombo's own year by temperature comfort, rainy days and sunshine — historical averages, not a forecast.
Colombo month by month
January
GoodHigh 30.1°C (86.2°F)
Low 22.7°C (72.9°F)
- Rainfall
- 90 mm (3.6 in)
- Rainy days
- 11 rainy days
- Sunshine
- 10.2 h sunshine / day
February
GoodHigh 31.3°C (88.3°F)
Low 23.3°C (73.9°F)
- Rainfall
- 63 mm (2.5 in)
- Rainy days
- 10 rainy days
- Sunshine
- 10.9 h sunshine / day
March
FairHigh 31.1°C (88°F)
Low 24.2°C (75.6°F)
- Rainfall
- 126 mm (5 in)
- Rainy days
- 18 rainy days
- Sunshine
- 10.8 h sunshine / day
April
FairHigh 30.7°C (87.3°F)
Low 24.9°C (76.8°F)
- Rainfall
- 184 mm (7.2 in)
- Rainy days
- 25 rainy days
- Sunshine
- 10.1 h sunshine / day
May
FairHigh 29.6°C (85.3°F)
Low 25.4°C (77.7°F)
- Rainfall
- 323 mm (12.7 in)
- Rainy days
- 29 rainy days
- Sunshine
- 9 h sunshine / day
June
FairHigh 28.9°C (84°F)
Low 25.2°C (77.4°F)
- Rainfall
- 295 mm (11.6 in)
- Rainy days
- 29 rainy days
- Sunshine
- 9.4 h sunshine / day
July
FairHigh 28.6°C (83.5°F)
Low 25.1°C (77.2°F)
- Rainfall
- 232 mm (9.1 in)
- Rainy days
- 29 rainy days
- Sunshine
- 9.8 h sunshine / day
August
FairHigh 28.4°C (83.1°F)
Low 24.9°C (76.8°F)
- Rainfall
- 238 mm (9.4 in)
- Rainy days
- 29 rainy days
- Sunshine
- 9.6 h sunshine / day
September
FairHigh 28.5°C (83.3°F)
Low 24.6°C (76.3°F)
- Rainfall
- 274 mm (10.8 in)
- Rainy days
- 28 rainy days
- Sunshine
- 9 h sunshine / day
October
FairHigh 28.8°C (83.8°F)
Low 24.2°C (75.6°F)
- Rainfall
- 383 mm (15.1 in)
- Rainy days
- 28 rainy days
- Sunshine
- 8.4 h sunshine / day
November
FairHigh 28.9°C (84°F)
Low 23.5°C (74.3°F)
- Rainfall
- 373 mm (14.7 in)
- Rainy days
- 24 rainy days
- Sunshine
- 8.1 h sunshine / day
December
FairHigh 29.2°C (84.6°F)
Low 23.1°C (73.6°F)
- Rainfall
- 190 mm (7.5 in)
- Rainy days
- 18 rainy days
- Sunshine
- 8.9 h sunshine / day
Based on 20 years of historical weather data (2006–2025) from Open-Meteo. Monthly averages, not a forecast.