Climate of Colombo, Sri Lanka
Area-weighted average across Colombo. For where people actually live and travel, see the cities below.
Colombo, a subdivision of Sri Lanka, has a tropical climate on average. Area-weighted monthly temperatures across the whole territory range from 26.5°C / 79.7°F in January to 28.2°C / 82.8°F in April, with rainfall from 90 mm / 3.5 in to 445 mm / 17.5 in depending on the season (3147 mm / 123.9 in total across the year). See the 2 cities listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 26.5°C79.7°F | 90 mm3.5″ | Tropical |
| February | 27°C80.6°F | 104 mm4.1″ | Tropical |
| March | 27.8°C82°F | 193 mm7.6″ | Tropical |
| April | 28.2°C82.8°F | 325 mm12.8″ | Tropical |
| May | 28.1°C82.6°F | 438 mm17.2″ | Tropical |
| June | 27.5°C81.5°F | 307 mm12.1″ | Tropical |
| July | 27.2°C81°F | 207 mm8.1″ | Tropical |
| August | 27.2°C81°F | 188 mm7.4″ | Tropical |
| September | 27.1°C80.8°F | 282 mm11.1″ | Tropical |
| October | 26.9°C80.4°F | 445 mm17.5″ | Tropical |
| November | 26.6°C79.9°F | 372 mm14.6″ | Tropical |
| December | 26.5°C79.7°F | 196 mm7.7″ | Tropical |
Frequently asked questions
What is the best time to visit Colombo?
Colombo, Sri Lanka does not have a clear sunny-and-dry window by our cutoffs. The warmest month is April at 28.2°C / 82.8°F, and the driest is January at 90 mm / 3.5 in — likely your best travel window. For city-level detail, see the cities section below.
What is the climate of Colombo?
Colombo, Sri Lanka has area-weighted monthly average temperatures ranging from 26.5°C / 79.7°F in January to 28.2°C / 82.8°F in April. Annual rainfall averages about 3147 mm / 123.9 in, with the wettest month being October (445 mm / 17.5 in) and the driest January (90 mm / 3.5 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Colombo?
The hottest month in Colombo is April, with an area-wide average temperature of 28.2°C / 82.8°F.
What is the coldest month in Colombo?
The coldest month in Colombo is January, with an area-wide average temperature of 26.5°C / 79.7°F.
When does it rain most in Colombo?
The wettest month in Colombo is October, averaging about 445 mm / 17.5 in of rainfall. The driest is January with about 90 mm / 3.5 in.