Monthly weather forecast and climate
Negombo, Sri Lanka

Weather in January

January in Negombo, Sri Lanka, is a tropical winter month, with average temperature ranging between min 22.8°C (73°F) and max 30.8°C (87.4°F). In January, the average high-temperature is essentially the same as in December - a hot 30.8°C (87.4°F). Weather in January »

Weather in February

The last month of the winter, February, is another tropical month in Negombo, Sri Lanka, with temperature in the range of an average high of 31.7°C (89.1°F) and an average low of 23.1°C (73.6°F). In Negombo, Sri Lanka, the average high-temperature in February is relatively the same as in January - a still tropical 31.7°C (89.1°F). Weather in February »

Weather in March

March, the first month of the spring, in Negombo, is still a tropical month, with average temperature fluctuating between 24.5°C (76.1°F) and 32.1°C (89.8°F). The warmest month is March, with an average high-temperature of 32.1°C (89.8°F) and an average low-temperature of 24.5°C (76.1°F). In March, the average heat index is estimated at a blistering 42.6°C (108.7°F). Weather in March »

Weather in April

April, like March, is another tropical spring month in Negombo, Sri Lanka, with average temperature ranging between min 26°C (78.8°F) and max 32°C (89.6°F). In Negombo, the average high-temperature is relatively the same as in March - a still tropical 32°C (89.6°F). Weather in April »

Weather in May

May, the last month of the spring, in Negombo, is another tropical month, with average temperature ranging between min 26.4°C (79.5°F) and max 30.8°C (87.4°F). In Negombo, the average high-temperature in May is essentially the same as in April - a still tropical 30.8°C (87.4°F). Weather in May »

Weather in June

June, the first month of the summer, in Negombo, is also a moderately hot month, with temperature in the range of an average low of 25.9°C (78.6°F) and an average high of 29.6°C (85.3°F). In Negombo, the average high-temperature is almost the same as in May - a warm 29.6°C (85.3°F). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Negombo, Sri Lanka, with average temperature ranging between max 29.2°C (84.6°F) and min 25.5°C (77.9°F). July is the coldest month, with an average high-temperature of 29.2°C (84.6°F) and an average low-temperature of 25.5°C (77.9°F). The average heat index is estimated at a very hot 35.8°C (96.4°F). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Negombo, Sri Lanka, with temperature in the range of an average low of 25.4°C (77.7°F) and an average high of 29.3°C (84.7°F). In Negombo, the average high-temperature in August is relatively the same as in July - a still moderately hot 29.3°C (84.7°F). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Negombo, Sri Lanka, with average temperature varying between 25.2°C (77.4°F) and 29.5°C (85.1°F). In Negombo, Sri Lanka, the average high-temperature is essentially the same as in August - a still moderately hot 29.5°C (85.1°F). Weather in September »

Weather in October

October, the same as September, is a moderately hot autumn month in Negombo, Sri Lanka, with temperature in the range of an average low of 25.1°C (77.2°F) and an average high of 29.9°C (85.8°F). In Negombo, the average high-temperature is almost the same as in September - a still warm 29.9°C (85.8°F). Weather in October »

Weather in November

November, the last month of the autumn, in Negombo, is a tropical month, with average temperature fluctuating between 24.5°C (76.1°F) and 30.2°C (86.4°F). In November, the average high-temperature is practically the same as in October - a tropical 30.2°C (86.4°F). Weather in November »

Weather in December

December, the first month of the winter, in Negombo, is also a moderately hot month, with average temperature fluctuating between 29.9°C (85.8°F) and 23.7°C (74.7°F). In Negombo, Sri Lanka, the average high-temperature in December is essentially the same as in November - a warm 29.9°C (85.8°F). Weather in December »
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FAQ

What is the least humid month in Negombo?

January and February, with an average relative humidity of 73%, are the least humid months.

How much does it rain in Negombo?

In Negombo, during the entire year, the rain falls for 265.4 days and collects up to 1744mm (68.66") of precipitation.

What is the driest month in Negombo?

January is the month with the least rainfall. Rain falls for 9.7 days and accumulates 29mm (1.14") of precipitation.

What are the months with the most sunshine in Negombo?

January through April, with an average of 9.2h of sunshine, are months with the most sunshine.

What are the months with the highest UV index in Negombo?

Months with the highest UV index are January through April, July, September, November and December, with an average maximum UV index of 7.

What is the warmest month in Negombo?

With an average high-temperature of 32.1°C (89.8°F) and an average low-temperature of 24.5°C (76.1°F), March is the warmest month in Negombo, Sri Lanka.

When is the sea warmest in Negombo?

With an average sea temperature of 29.7°C (85.5°F), April is the month with the warmest seawater.

When are the longest days in Negombo?

May through July, with an average of 12.5h of daylight, are months with the longest days in Negombo.

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

Months with the lowest UV index in Negombo are May, June, August and October, with an average maximum UV index of 6.

What is the most humid month in Negombo?

Months with the highest humidity in Negombo, Sri Lanka, are June through August, with an average relative humidity of 82%.

What is the wettest month in Negombo?

June is the month with the most rainfall in Negombo, Sri Lanka. Rain falls for 27.6 days and accumulates 231mm (9.09") of precipitation.

What is the coldest month in Negombo?

The coldest month in Negombo, Sri Lanka, is July, with an average high-temperature of 29.2°C (84.6°F) and an average low-temperature of 25.5°C (77.9°F).

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

August is the month with the coldest seawater in Negombo, with an average sea temperature of 27°C (80.6°F).

What is the month with the least sunshine in Negombo?

November has the least sunshine of the year, with an average of 6.6h of sunshine.

What is the month with the shortest days in Negombo?

The month with the shortest days in Negombo, Sri Lanka, is December, with an average of 11.7h of daylight.

Average temperature
Negombo, Sri Lanka

Average temperature - Negombo, Sri Lanka

The warmest month (with the highest average high temperature) is March (32.1°C).
The month with the lowest average high temperature is July (29.2°C).

The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is January (22.8°C).

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Average pressure
Negombo, Sri Lanka

Average pressure - Negombo, Sri Lanka

The month with the highest atmospheric pressure is January (1011.7mbar).
Months with the lowest atmospheric pressure are May and June (1008.4mbar).

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Average wind speed
Negombo, Sri Lanka

Average wind speed - Negombo, Sri Lanka

The windiest month (with the highest average wind speed) is June (18.3km/h).
The calmest month (with the lowest average wind speed) is March (9.1km/h).

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Average humidity
Negombo, Sri Lanka

Average humidity - Negombo, Sri Lanka

Months with the highest relative humidity are June, July and August (82%).
Months with the lowest relative humidity are January and February (73%).

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Average rainfall
Negombo, Sri Lanka

Average rainfall - Negombo, Sri Lanka

The wettest month (with the highest rainfall) is June (231mm).
The driest month (with the least rainfall) is January (29mm).

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Average rainfall days
Negombo, Sri Lanka

Average rainfall days - Negombo, Sri Lanka

The month with the highest number of rainy days is August (28.4 days).
The month with the least rainy days is January (9.7 days).

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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).

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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 the shortest days is December (Average daylight: 11.7h).

Months with the most sunshine are January, February, March and April (Average sunshine: 9.2h).
The month with the least sunshine is November (Average sunshine: 6.6h).

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Average sunshine days
Negombo, Sri Lanka

Average sunshine days - Negombo, Sri Lanka

The month with the most sunshine days is January (20 days).
The month with the least sunshine days is August (1.2 days).

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Average UV index
Negombo, Sri Lanka

Average UV index - Negombo, Sri Lanka

Months with the highest UV index are January, February, March, April, July, September, November and December (UV index 7).
Months with the lowest UV index are May, June, August and October (UV index 6).

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Average visibility
Negombo, Sri Lanka

Average visibility - Negombo, Sri Lanka

Months with the highest visibility are January, February, March, April, June, July, September and December (10km).
Months with the lowest visibility are May, August, October and November (9km).

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