Colombo weather

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  • Colombo climate averages by month
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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

The weather guide for Colombo, Sri Lanka shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.

Which is the hottest month in Colombo?

The hottest time of year in Colombo is normally April. Expect maximum daytime temperatures to reach 32°C with very high heat and humidity.

Which month has the most rain in Colombo?

In terms of rainfall, May is usually the wettest month in Colombo with 382mm on average. There are normally 14 days in May with some rain.

When is it sunniest in Colombo?

The sunniest time of year in Colombo is normally March with bright sunshine on average for 72% of daylight hours; that's 9 hours of sunshine per day.

When is the sea warmest in Colombo?

The sea is usually at its warmest in Colombo in April when the water temperature reaches 30°C.

Metric (°C / mm)  |  Imperial (°F / inches)

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Compare Colombo weather with the USA

Below the Colombo weather chart shows average maximum daytime temperature for Colombo, Sri Lanka and the USA (Washington).

Maximum daytime temperature (°C)

Colombo, Sri Lanka
USA (Washington)
31
5
31
7
32
13
32
19
31
24
30
29
30
31
30
30
30
26
30
20
30
14
30
8
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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Tropical storm risk: Colombo, Sri Lanka cyclone season

% of month affected by tropical storms
0
0
0
0
0
0
0
0
0
0
1.4%
1.8%
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

The Colombo, Sri Lanka tropical storm risk chart above shows the cyclone season. The chart was processed from data supplied by the US Meteorological Agency (NOAA). Find out more about our data sources.

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