Jaffna
Sri Lanka
Long-term weather forecast
Long-term weather forecast

June weather forecast and climate
Jaffna, Sri Lanka

The first month of the summer, June, is still a hot month in Jaffna, Sri Lanka, with temperature in the range of an average high of 33°C (91.4°F) and an average low of 26°C (78.8°F).

Temperature

In Jaffna, the average high-temperature is almost the same as in May - a still tropical 33°C (91.4°F). The average low-temperature, in Jaffna, is 26°C (78.8°F).

Rainfall

The month with the least rainfall in Jaffna is June when the rain falls for 1 days and typically collects 10mm (0.4") of precipitation.

Sea temperature

In Jaffna, the average seawater temperature is 29.4°C (84.9°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.

Daylight

June has the longest days of the year, with an average of 12.7h of daylight.

Sunshine

Months with the least sunshine are June, July, October through December, with an average of 6h of sunshine.

UV index

February through October, with an average maximum UV index of 12, are months with the highest UV index in Jaffna. A UV Index value of 11, and more, symbolizes an extreme threat to health from unsafe exposure to the UV radiation for the average person.
The daily maximum UV index of 12 interpret into the following advice:
Practice all-important precautions. Light skin people may get burned in less than 5 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in June in Jaffna?

In June, in Jaffna, the average high-temperature is 33°C (91.4°F), and the average low-temperature is 26°C (78.8°F).

How many days does it rain in June in Jaffna?

In Jaffna, Sri Lanka, in June, it is raining for 1 days, with typically 10mm (0.4") of accumulated precipitation.

What is the driest month in Jaffna?

The month with the least rainfall is June when the rain falls for 1 days and typically collects 10mm (0.4") of precipitation.

How warm is the water in June in Jaffna?

In Jaffna, the average seawater temperature in June is 29.4°C (84.9°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.

When are the longest days in Jaffna?

With an average of 12.7h of daylight, June has the longest days of the year.

How many hours of daylight does Jaffna have in June?

In June, the average length of the day is 12.7h.

What is the month with the least sunshine in Jaffna?

June, July, October through December, with an average of 6h of sunshine, are months with the least sunshine in Jaffna.

How many hours of sunshine does Jaffna have in June?

The average sunshine in June is 6h.

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

Months with the highest UV index in Jaffna, Sri Lanka, are February through October, with an average maximum UV index of 12.

How high is the UV index in June in Jaffna?

In Jaffna, Sri Lanka, the average daily maximum UV index in June is 12. A UV Index reading of 11, and higher, represents an extreme health threat from unsafe exposure to the Sun's UV rays.
Average temperature in June - Jaffna, Sri Lanka
  • Average high temperature in June: 33°C

The warmest month (with the highest average high temperature) is May (34°C).
Months with the lowest average high temperature are January and December (28°C).

  • Average low temperature in June: 26°C

The month with the highest average low temperature is April (27°C).
The coldest month (with the lowest average low temperature) is January (23°C).

Average rainfall in June - Jaffna, Sri Lanka
  • Average rainfall in June: 10mm

The wettest month (with the highest rainfall) is November (380mm).
The driest month (with the lowest rainfall) is June (10mm).

Average rainfall days in June - Jaffna, Sri Lanka
  • Average rainfall days in June: 1 days

The month with the highest number of rainy days is November (12 days).
The month with the lowest number of rainy days is June (1 days).

Average sea temperature in June - Jaffna, Sri Lanka
  • Average sea temperature in June: 29.4°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).

Average daylight in June / Average sunshine in June - Jaffna, Sri Lanka
  • Average daylight in June: 12.7h

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

  • Average sunshine in June: 6h

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

Average UV index in June - Jaffna, Sri Lanka
  • Average UV index in June: 12

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 November and December (UV index 10).