Monthly weather forecast and climate
Negombo, Sri Lanka

Contents

FAQ

How much does it rain in Negombo?

In Negombo, Sri Lanka, during the entire year, the rain falls for 125 days and collects up to 2345mm (92.3") of precipitation.

What is the month with the lowest UV index in Negombo?

Months with the lowest UV index in Negombo are January, November and December, with an average UV index of 11.

What are the warmest months in Negombo?

February through May, with an average high-temperature of 31°C (87.8°F), are warmest months in Negombo, Sri Lanka.

What is the driest month in Negombo?

The month with the least rainfall in Negombo is February when the rain falls for 4 days and typically collects 69mm (2.7") of precipitation.

What is the month with the highest UV index in Negombo?

Months with the highest UV index are February through October, with an average UV index of 12.

What month is the sea warmest in Negombo?

The month with the warmest seawater in Negombo is April, with an average sea temperature of 29.7°C (85.5°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the wettest month in Negombo?

The month with the most rainfall in Negombo is May when the rain falls for 12 days and typically aggregates up to 371mm (14.6") of precipitation.

What is the coldest month in Negombo?

The coldest months in Negombo, Sri Lanka, are June through December, with an average high-temperature of 29°C (84.2°F).

What is the month with the coldest sea water in Negombo?

August is the month with the coldest seawater in Negombo, Sri Lanka, with an average sea temperature of 27°C (80.6°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Average temperature
Negombo, Sri Lanka

Average temperature - Negombo, Sri Lanka

Warmest months (with the highest average high temperature) are February, March, April and May (31°C).
Months with the lowest average high temperature are June, July, August, September, October, November and December (29°C).

The month with the highest average low temperature is May (26°C).
Coldest months (with the lowest average low temperature) are January, February and December (22°C).

Average rainfall
Negombo, Sri Lanka

Average rainfall - Negombo, Sri Lanka

The wettest month (with the highest rainfall) is May (371mm).
The driest month (with the lowest rainfall) is February (69mm).

Average rainfall days
Negombo, Sri Lanka

Average rainfall days - Negombo, Sri Lanka

Months with the highest number of rainy days are October and November (15 days).
Months with the lowest number of rainy days are January and February (4 days).

Average sea temperature
Negombo, Sri Lanka

Average sea temperature - Negombo, Sri Lanka

The best month for swimming (with the highest average sea temperature) is April (29.7°C).
The coldest month (with the lowest average sea temperature) is August (27°C).

Average daylight / Average sunshine
Negombo, Sri Lanka

Average daylight / Average sunshine - Negombo, Sri Lanka

Months with the longest days are May, June and July (Average daylight: 12.5h).
The month with shortest days is December (Average daylight: 11.7h).

The month with most sunshine is March (Average sunshine: 9h).
Months with least sunshine are June, July, August, September and October (Average sunshine: 6).

Average UV index
Negombo, Sri Lanka

Average UV index - Negombo, Sri Lanka

Months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
Months with the lowest UV index are January, November and December (UV index 11).

°Celsius°Fahrenheit
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