Yearly weather and climate in Colombo, Sri Lanka
The yearly weather in Colombo runs from around 23°C in January to 31°C in February. February is the driest month at 10 rainy days; May the wettest at 30. Here is the annual climate data, so you know what you are packing for.
Best time to visit
Weather is fairly consistent year-round. Pack for stable conditions.
Sunshine
Expect up to 11.1 hours of clear skies in Feb, but only 7.5 hours in Nov. Pack sunglasses and SPF accordingly.
Rainfall
It rains the most in May (440mm over 30 days). A reliable rain jacket is a must-have if visiting then.
Day-to-night swings
Temperatures typically drop by 5°C from day to night. Make sure to pack layers for the evenings.
Average temperatures and rainfall
Daily highs and lows in Colombo, averaged over 10 years of recorded weather, with the number of days it typically rains.
- 3086°2373°15Jan
- 3188°2374°10Feb
- 3188°2475°18Mar
- 3188°2576°24Apr
- 3085°2678°30May
- 2984°2578°29Jun
- 2984°2578°28Jul
- 2983°2577°29Aug
- 2983°2576°29Sep
- 2983°2476°29Oct
- 2984°2374°25Nov
- 3085°2374°21Dec
Bars span the average daily low to high. Numbers under the drop are rainy days per month (1mm or more) — hover a month for its total rainfall. Feb is typically driest at 10 days (41mm); May the wettest at 30 days (440mm).
| Month | Average high | Average low | Rainy days | Total rainfall |
|---|---|---|---|---|
| Jan | 30°C | 23°C | 15 | 120mm |
| Feb | 31°C | 23°C | 10 | 41mm |
| Mar | 31°C | 24°C | 18 | 105mm |
| Apr | 31°C | 25°C | 24 | 156mm |
| May | 30°C | 26°C | 30 | 440mm |
| Jun | 29°C | 25°C | 29 | 307mm |
| Jul | 29°C | 25°C | 28 | 250mm |
| Aug | 29°C | 25°C | 29 | 257mm |
| Sep | 29°C | 25°C | 29 | 341mm |
| Oct | 29°C | 24°C | 29 | 365mm |
| Nov | 29°C | 23°C | 25 | 411mm |
| Dec | 30°C | 23°C | 21 | 198mm |
Weather data by Open-Meteo.com
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