August weather forecast and climate
Jaffna, Sri Lanka

Weather in August

The last month of the summer, August, is another warm month in Jaffna, Sri Lanka, with temperature in the range of an average low of 27.4°C (81.3°F) and an average high of 28.8°C (83.8°F).

Temperature

In August, the average high-temperature is practically the same as in July - a still moderately hot 28.8°C (83.8°F). The average low-temperature, in Jaffna, Sri Lanka, is 27.4°C (81.3°F).

Heat index

The average heat index in August is appraised at a tropical 34°C (93.2°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'felt air temperature', or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like pregnancy, differences in body mass, height, and shape, metabolic differences, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

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

Rainfall

In Jaffna, it is raining for 13.1 days, with typically 38mm (1.5") of accumulated precipitation. In Jaffna, during the entire year, the rain falls for 148.6 days and collects up to 769mm (30.28") of precipitation.

Sea temperature

In Jaffna, in August, the average water temperature is 28.8°C (83.8°F).
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In August, the average length of the day is 12.4h.

Sunshine

In Jaffna, the average sunshine in August is 9.4h.

UV index

Months with the highest UV index in Jaffna are January through October and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 7 interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the temperature in August in Jaffna?

In August, in Jaffna, the average high-temperature is 28.8°C (83.8°F), and the average low-temperature is 27.4°C (81.3°F). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 34°C (93.2°F).

What is the most humid month in Jaffna?

May, August and September, with an average relative humidity of 79%, are most humid months in Jaffna, Sri Lanka.

What is the average humidity in August in Jaffna?

The average relative humidity in August in Jaffna, Sri Lanka, is 79%.

How many days does it rain in August in Jaffna?

In Jaffna, in August, during 13.1 rainfall days, 38mm (1.5") of precipitation is typically accumulated.

How warm is the water in August in Jaffna?

In Jaffna, Sri Lanka, the average seawater temperature in August is 28.8°C (83.8°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.

What is the average length of the day in August in Jaffna?

The average length of the day in August in Jaffna, Sri Lanka, is 12.4h.

How long on average sun shines in August in Jaffna?

In Jaffna, Sri Lanka, the average sunshine in August is 9.4h.

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

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

What is the UV index intensity in August in Jaffna?

In August, the average daily maximum UV index in Jaffna, Sri Lanka, is 7. A UV Index reading of 6 to 7 represents a high health risk from the exposure to the Sun's UV rays.

Average temperature in August
Jaffna, Sri Lanka

Average temperature in August - Jaffna, Sri Lanka
  • Average high temperature in August: 28.8°C

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).

  • Average low temperature in August: 27.4°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 in August
Jaffna, Sri Lanka

Average pressure in August - Jaffna, Sri Lanka
  • Average pressure in August: 1006.6mbar

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 in August
Jaffna, Sri Lanka

Average wind speed in August - Jaffna, Sri Lanka
  • Average wind speed in August: 28.7km/h

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 in August
Jaffna, Sri Lanka

Average humidity in August - Jaffna, Sri Lanka
  • Average humidity in August: 79%

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 in August
Jaffna, Sri Lanka

Average rainfall in August - Jaffna, Sri Lanka
  • Average rainfall in August: 38mm

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 in August
Jaffna, Sri Lanka

Average rainfall days in August - Jaffna, Sri Lanka
  • Average rainfall days in August: 13.1 days

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 in August
Jaffna, Sri Lanka

Average sea temperature in August - Jaffna, Sri Lanka
  • Average sea temperature in August: 28.8°C

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 in August /
Average sunshine in August
Jaffna, Sri Lanka

Average daylight in August / Average sunshine in August - Jaffna, Sri Lanka
  • Average daylight in August: 12.4h

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).

  • Average sunshine in August: 9.4h

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 in August
Jaffna, Sri Lanka

Average sunshine days in August - Jaffna, Sri Lanka
  • Average sunshine days in August: 17.7 days

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 in August
Jaffna, Sri Lanka

Average UV index in August - Jaffna, Sri Lanka
  • Average UV index in August: 7

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 cloud cover in August
Jaffna, Sri Lanka

Average cloud cover in August - Jaffna, Sri Lanka
  • Average cloud cover in August: 31

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is March (Cloud cover 16).

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Average visibility in August
Jaffna, Sri Lanka

Average visibility in August - Jaffna, Sri Lanka
  • Average visibility in August: 10km

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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