Sri Lanka weather averages

Going to Sri Lanka? Find the best month to visit Sri Lanka based on the weather.

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Check Sri Lanka weather averages before you book your next holiday in 2018/2019. Today's maximum temperature in Sri Lanka is expected to be 30°C, while the average maximum temperature in September is 30°C. The holiday weather guide shown above is for Colombo.

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More about Sri Lanka

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

Sri Lanka weather averages: best month

Sri Lanka Best month Averages
Warmest March & April 32°C
Sunniest February & March 9 hours per day
Least rain January & February 5 days
Warmest sea April 30°C

Sri Lanka climate guide

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Sri Lanka weather overview

The climate of Sri Lanka is consistently warm and sunny and conditions rarely grow chilly, even at night. In the lowland areas around the coast, temperatures are much higher and humidity can make evenings rather clammy, although sea breezes keep daytimes fairly fresh. Expect rain on this island at any time of the year: rainfall is most intense in the southwest from April to June and from October to November.

Sri Lankan Landscape
Sri Lankan Landscape

Rain tends to fall mainly in the afternoons and can be accompanied by thunderstorms. The driest conditions are found in the northeast which has only one main rainy season (from October to January).

What to pack for Sri Lanka weather

You will need only light clothes for a trip to Sri Lanka.

Tropical storm risk: Sri Lanka cyclone season

% of month affected by tropical storms
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The Sri Lanka tropical storm risk chart above shows the cyclone season for Colombo, Sri Lanka.

More about tropical storms

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Sri Lanka weather averages by month

Check Sri Lanka holiday weather averages for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

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Compare Sri Lanka weather with the USA

Below the Sri Lanka weather chart shows maximum daytime temperature for Sri Lanka (Colombo) and the USA (Washington). For more weather parameters or to change the destinations shown visit the comparison weather tool.

Maximum daytime temperature (°C)

Sri Lanka (Colombo)
USA (Washington)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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

Compare more Sri Lanka weather >>

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Popular Sri Lanka destinations

More Sri Lanka destinations

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