Annual average weather for Sri Lanka

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Annual Average Weather for Sri Lanka

The annual average maximum daily temperature is 31.6°C (88.8°F) which is very hot and perfect for sunbathing on clear days. The annual average water temperature is typically 28.3°C (82.9°F) which is very warm and ideal for relaxing and swimming for the whole day. Annually there are on average 9.4 days of rain per month and 8.6 hours of sun per day.

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When is the best time to visit Sri Lanka?

The best months to visit Sri Lanka are January, February, March, July, for the best beach weather, the most sunshine and optimal sunbathing and swimming conditions with the least chance of rain.

The sea is best for swimming between March and November when the sea temperature is above the average 28°C (83°F) which is very warm and ideal for relaxing and swimming for the whole day.

Can you sunbathe in Sri Lanka year round?

Yes, you can sunbathe in Sri Lanka all year round.

The coolest month in Sri Lanka is January when the average maximum temperature is 30°C (85°F), average temperature is 26°C (80°F) and average minimum temperature is 23°C (74°F).

More info about the annual temperatures and sunshine.

Can you swim in Sri Lanka year round?

Yes, you can swim in Sri Lanka all year round.

The warmest sea water temperatures in Sri Lanka are found in April when they peak at 30°C (86°F) and lowest in January when they dip to 27°C (81°F).

The sea is excellent for swimming all year round as the water temperature is very warm and ideal for relaxing and swimming for the whole day.

More info about the annual sea temperatures

When is the hottest month in Sri Lanka?

The hottest month in Sri Lanka is June when the average maximum temperature is very hot and perfect for sunbathing on clear days 33°C (91°F), average temperature is 30°C (85°F) and average minimum temperature is 27°C (80°F).

More info about the annual temperatures and sunshine.

When is the coldest month in Sri Lanka?

The coolest month in Sri Lanka is January when the average maximum temperature is 30°C (85°F), average temperature is 26°C (80°F) and average minimum temperature is 23°C (74°F).

More info about the annual temperatures and sunshine

When is the sunniest month in Sri Lanka?

The sunniest days in Sri Lanka are in February which has the most hours of sunshine per day. In February the sunshine percentage is 76.2% making it sunny and pleasant most of the time. The hours of sunshine per day are 9.1hrs making the days long and bright.

More info about the annual sunshine.

When is the least sunny month in Sri Lanka?

June has the least sunshine. In June the sunshine percentage is 65.4% making it sunny but overcast at times. The hours of sunshine per day are 8.2hrs making the days long and bright.

More info about the annual sunshine.

When is the driest month in Sri Lanka?

The driest month in Sri Lanka is March with 4.9cm (1.9inches) of rain and February has the fewest days of rain with 5 days with some rain, a very dry time to visit the beach.

More info about the annual rainfall

When is the wettest month in Sri Lanka?

The wettest month in Sri Lanka is November with 17.8cm (7.0inches) of rain and the most days of rain with 17.1 days with some rain, a wet time to visit the beach.

More info about the annual rainfall.

When is the sea the coldest in Sri Lanka?

The coldest sea water temperatures in Sri Lanka are found in January when they dip to 27°C (81°F) which is very warm and ideal for relaxing and swimming for the whole day.

More info about the annual sea temperatures.

When is the sea the warmest in Sri Lanka?

The warmest sea water temperatures in Sri Lanka are found in April when they peak at 30°C (86°F) which is very warm and ideal for relaxing and swimming for the whole day.

More info about the annual sea temperatures.

When is the most humid month in Sri Lanka?

The most humid month in Sri Lanka is April with a dew point (an indicator of humidity) of 25°C (78°F) which is very uncomfortable and fairly oppressive unless you are on a beach. At night you would most likely require airconditioning.

More info about the annual humidity.

When is the least humid month in Sri Lanka?

The least humid month in Sri Lanka is January with a dew point of 23°C (73°F) which is very humid and quite uncomfortable for most unless you are on a beach. At night you would most likely require a fan.

More info about the annual humidity.

When is the windiest month in Sri Lanka?

The most windy month in Sri Lanka is July when the average maximum windspeed is 25KM/H (16MPH) and the average wind speed is 16KM/H (10MPH).

More info about the annual wind conditions.

Annual Temperature for Sri Lanka

The hottest month in Sri Lanka is June when the average maximum temperature is 33°C (91°F), average temperature is 30°C (85°F) and average minimum temperature is 27°C (80°F).

The coolest month in Sri Lanka is January when the average maximum temperature is 30°C (30°F), average temperature is 26°C (80°F) and average minimum temperature is 23°C (74°F).

Annual Sunshine for Sri Lanka

The longest days in Sri Lanka are in June, with an average of 12.5 hours of daylight per day. December has the shortest days with an average of 11.7 hours of daylight per day.

The sunniest days in Sri Lanka are in February which has the most hours of sunshine per day. The sunshine percentage is 76.2% making it sunny and pleasant most of the time. The hours of sunshine per day are 9.1hrs making the days long and bright.

June has the least sunshine. The sunshine percentage is 65.4% making it sunny but overcast at times. The hours of sunshine per day are 8.2hrs making the days long and bright.

The ultraviolet index is the highest in March when it reaches 15 and lowest in December when it reaches 11.2.

An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Annual Sea Temperature for Sri Lanka

The warmest sea water temperatures in Sri Lanka are found in April when they peak at 30°C (86°F) and lowest in January when they dip to 27°C (81°F).

The sea is excellent for swimming all year round as the water temperature is very warm and ideal for relaxing and swimming for the whole day.

Annual Rainfall for Sri Lanka

The wettest month in Sri Lanka is November with 17.8cm (7.0inches) of rain and the most days of rain with 17.1 days with some rain, a wet time to visit the beach.

The driest month in Sri Lanka is March with 4.9cm (1.9inches) of rain and February has the fewest days of rain with 5 days with some rain, a very dry time to visit the beach.

Annual Humidity for Sri Lanka

The most humid month in Sri Lanka is April with a dew point (an indicator of humidity) of 25°C (78°F) which is very uncomfortable and fairly oppressive unless you are on a beach. At night you would most likely require airconditioning.

The least humid month in Sri Lanka is January with a dew point of 23°C (73°F) which is very humid and quite uncomfortable for most unless you are on a beach. At night you would most likely require a fan.

Annual Wind Speed for Sri Lanka

The most windy month in Sri Lanka is July when the average maximum windspeed is 25KM/H (16MPH) and the average wind speed is 16KM/H (10MPH).

The least windy month in Sri Lanka is April when the average maximum windspeed is 14KM/H (9MPH) and the average wind speed is 7KM/H (4MPH).

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