Monthly weather forecast and climate
Jaffna, Sri Lanka

The best time to visit Jaffna

March is the best period for swimming and other water activities in Jaffna, Sri Lanka, as the sea temperature is 28.7°C (83.7°F), the rain falls for only 5.8 days, and 13mm (0.51") of rainfall is accumulated.

Weather in January

January, the same as December, is another warm winter month in Jaffna, Sri Lanka, with average temperature fluctuating between 26.8°C (80.2°F) and 25.5°C (77.9°F). With an average high-temperature of 26.8°C (80.2°F) and an average low-temperature of 25.5°C (77.9°F), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter, in Jaffna, is another warm month, with average temperature ranging between max 27.4°C (81.3°F) and min 25.7°C (78.3°F). In February, the average high-temperature is relatively the same as in January - a still warm 27.4°C (81.3°F). Weather in February »

Weather in March

The first month of the spring, March, is still a warm month in Jaffna, Sri Lanka, with average temperature ranging between min 26.7°C (80.1°F) and max 29.3°C (84.7°F). The perfect water temperature of 28.7°C (83.7°F) with 13mm (0.51") of accumulated rainfall and only 5.8 rainfall days, makes March a great period for swimming and other water activities. Weather in March »

Weather in April

April in Jaffna, Sri Lanka, is a tropical spring month, with average temperature fluctuating between 30.4°C (86.7°F) and 28.1°C (82.6°F). With an average high-temperature of 30.4°C (86.7°F) and an average low-temperature of 28.1°C (82.6°F), April is the warmest month. The average heat index is calculated to a torrid 38°C (100.4°F). Weather in April »

Weather in May

The last month of the spring, May, is another tropical month in Jaffna, Sri Lanka, with average temperature varying between 30.3°C (86.5°F) and 29°C (84.2°F). In May, the average high-temperature is almost the same as in April - a still tropical 30.3°C (86.5°F). Weather in May »

Weather in June

June, the first month of the summer, in Jaffna, is also a moderately hot month, with temperature in the range of an average low of 28.4°C (83.1°F) and an average high of 29.7°C (85.5°F). In June, the average high-temperature is relatively the same as in May - a warm 29.7°C (85.5°F). Weather in June »

Weather in July

July, like June, in Jaffna, Sri Lanka, is another warm summer month, with average temperature varying between 27.9°C (82.2°F) and 29°C (84.2°F). In July, the average high-temperature is almost the same as in June - a still moderately hot 29°C (84.2°F). Weather in July »

Weather in August

August, the last month of the summer, in Jaffna, is also a moderately hot month, with temperature in the range of an average high of 28.8°C (83.8°F) and an average low of 27.4°C (81.3°F). In Jaffna, the average high-temperature is almost the same as in July - a still moderately hot 28.8°C (83.8°F). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Jaffna, Sri Lanka, with average temperature varying between 27.5°C (81.5°F) and 28.8°C (83.8°F). In Jaffna, the average high-temperature remains the same as in August - a still warm 28.8°C (83.8°F). Weather in September »

Weather in October

October, the same as September, is a moderately hot autumn month in Jaffna, Sri Lanka, with average temperature ranging between min 27.7°C (81.9°F) and max 29.2°C (84.6°F). In October, the average high-temperature is practically the same as in September - a still warm 29.2°C (84.6°F). Weather in October »

Weather in November

The last month of the autumn, November, is another warm month in Jaffna, Sri Lanka, with average temperature ranging between max 28.4°C (83.1°F) and min 26.9°C (80.4°F). In November, the average high-temperature is relatively the same as in October - a still moderately hot 28.4°C (83.1°F). Weather in November »

Weather in December

December, the first month of the winter, in Jaffna, is still a warm month, with average temperature fluctuating between 27.5°C (81.5°F) and 26.1°C (79°F). In Jaffna, the average high-temperature in December is relatively the same as in November - a still warm 27.5°C (81.5°F). Weather in December »
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FAQ

What is the coldest month in Jaffna?

The coldest month in Jaffna, Sri Lanka, is January, with an average high-temperature of 26.8°C (80.2°F) and an average low-temperature of 25.5°C (77.9°F).

How much does it rain in Jaffna?

In Jaffna, during the entire year, the rain falls for 148.6 days and collects up to 769mm (30.28") of precipitation.

When is the sea coldest in Jaffna?

January is the month with the coldest seawater, with an average sea temperature of 26.8°C (80.2°F).

What is the month with the shortest days in Jaffna?

January and December, with an average of 11.6h of daylight, are months with the shortest days in Jaffna, Sri Lanka.

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

Months with the highest UV index in Jaffna, Sri Lanka, are January through October and December, with an average maximum UV index of 7.

What is the least humid month in Jaffna?

March is the least humid month, with an average relative humidity of 75%.

What is the driest month in Jaffna?

The month with the least rainfall is March when the rain falls for 5.8 days and typically collects 13mm (0.51") of precipitation.

What is the warmest month in Jaffna?

With an average high-temperature of 30.4°C (86.7°F) and an average low-temperature of 28.1°C (82.6°F), April is the warmest month.

What is the month with the warmest sea water in Jaffna?

With an average sea temperature of 30.1°C (86.2°F), April is the month with the warmest seawater in Jaffna, Sri Lanka.

What are the most humid months in Jaffna?

Months with the highest humidity are May, August and September, with an average relative humidity of 79%.

When are the longest days in Jaffna?

June has the longest days of the year in Jaffna, Sri Lanka, with an average of 12.7h of daylight.

What month has the most sunshine in Jaffna?

June has the most sunshine of the year, with an average of 11.6h of sunshine.

What is the wettest month in Jaffna?

October is the month with the most rainfall. Rain falls for 22.6 days and accumulates 191mm (7.52") of precipitation.

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

The month with the lowest UV index in Jaffna is November, with an average maximum UV index of 6.

What is the month with the least sunshine in Jaffna?

With an average of 5.5h of sunshine, December has the least sunshine of the year.

Average temperature
Jaffna, Sri Lanka

Average temperature - Jaffna, Sri Lanka

The warmest month (with the highest average high temperature) is April (30.4°C).
The month with the lowest average high temperature is January (26.8°C).

The month with the highest average low temperature is May (29°C).
The coldest month (with the lowest average low temperature) is January (25.5°C).

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Average pressure
Jaffna, Sri Lanka

Average pressure - Jaffna, Sri Lanka

The month with the highest atmospheric pressure is January (1012.5mbar).
The month with the lowest atmospheric pressure is June (1005.9mbar).

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Average wind speed
Jaffna, Sri Lanka

Average wind speed - Jaffna, Sri Lanka

The windiest month (with the highest average wind speed) is June (33.8km/h).
The calmest months (with the lowest average wind speed) are March and April (16.7km/h).

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Average humidity
Jaffna, Sri Lanka

Average humidity - Jaffna, Sri Lanka

Months with the highest relative humidity are May, August and September (79%).
The month with the lowest relative humidity is March (75%).

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Average rainfall
Jaffna, Sri Lanka

Average rainfall - Jaffna, Sri Lanka

The wettest month (with the highest rainfall) is October (191mm).
The driest month (with the least rainfall) is March (13mm).

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Average rainfall days
Jaffna, Sri Lanka

Average rainfall days - Jaffna, Sri Lanka

The month with the highest number of rainy days is October (22.6 days).
The month with the least rainy days is March (5.8 days).

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Average sea temperature
Jaffna, Sri Lanka

Average sea temperature - Jaffna, Sri Lanka

The best month for swimming (with the highest average sea temperature) is April (30.1°C).
The coldest month (with the lowest average sea temperature) is January (26.8°C).

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Average daylight / Average sunshine
Jaffna, Sri Lanka

Average daylight / Average sunshine - Jaffna, Sri Lanka

The month with the longest days is June (Average daylight: 12.7h).
Months with the shortest days are January and December (Average daylight: 11.6h).

The month with the most sunshine is June (Average sunshine: 11.6h).
The month with the least sunshine is December (Average sunshine: 5.5h).

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Average sunshine days
Jaffna, Sri Lanka

Average sunshine days - Jaffna, Sri Lanka

The month with the most sunshine days is March (23.9 days).
The month with the least sunshine days is November (6.3 days).

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Average UV index
Jaffna, Sri Lanka

Average UV index - Jaffna, Sri Lanka

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

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Average visibility
Jaffna, Sri Lanka

Average visibility - Jaffna, Sri Lanka

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

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