The best time to visit Colombo is between December and March, the most comfortable stretch of the year on these averages.
Colombo is a warm-year climate with a drier stretch and a wetter one, not four seasons in the European sense. The hot months are the outdoor months until the rain takes over. Colombo is a city in Sri Lanka. This page is about Colombo, not a country average.
Most visitors come in the drier stretch and treat the wet months as a different trip: slower days, heavier skies, still warm. The monthly table on this page still owns the averages. This layer is how Colombo actually feels.
Part of Sri Lanka weather.
The drier stretch in Colombo is when outdoor days are the default. January, February, March and June sit on that side of the year. Heat is still the point. Rain is not gone, it is no longer in charge.
Colombo in Sri Lanka in these weeks is a warm-weather trip: early starts, shade at midday, evenings outside. It is not a European spring with a light jumper.
Read Colombo in this stretch as its own climate, not as a generic holiday season copied from another destination.
The wetter stretch in Colombo is still warm. April, May, September and October sit on that side of the year. Days can be heavy. Showers arrive, dump, and often leave the air stickier than before.
This is a slower trip, not a cancelled one. Build indoor hours into the afternoon. Do not treat Colombo as closed. Treat it as a place where the sky does more of the talking than it does in the dry months.
Read Colombo in this stretch as its own climate, not as a generic holiday season copied from another destination.
TemperatureRainfall
Every figure below is a 1991–2020 climate normal for Colombo, in °C and °F. Open a month for what to expect and what to pack.
| Month | Average | Rainfall |
|---|---|---|
| January | 27°C / 81°F | 83 mm |
| February | 28°C / 82°F | 76 mm |
| March | 28°C / 83°F | 103 mm |
| April | 29°C / 83°F | 251 mm |
| May | 29°C / 84°F | 314 mm |
| June | 28°C / 83°F | 202 mm |
| July | 28°C / 82°F | 128 mm |
| August | 28°C / 82°F | 122 mm |
| September | 28°C / 82°F | 270 mm |
| October | 28°C / 82°F | 349 mm |
| November | 27°C / 81°F | 343 mm |
| December | 27°C / 81°F | 176 mm |
Dates are a starting point for December.
What to read before you book.
Now pick a month.
Climate averages for Colombo, 1991–2020.
The best time to visit Colombo is between December and March, the most comfortable stretch of the year on these averages.
May is the hottest month, with an average around 29°C.
October is the wettest month, with about 349 mm of rain.
Colombo has a distinct rainy season from September to November, peaking in October at about 349 mm. The dry season runs from December to August.
December is the coolest month, averaging 27°C (81°F) against 29°C (84°F) in May.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what each month is usually like, which is what you want when booking ahead. For today or the coming week, check a live forecast.
No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.
