September weather forecast and climate
Kalutara, Sri Lanka

Temperature

The coldest months are June through December, with an average high-temperature of 30°C (86°F).

Rainfall

In September, the rain falls for 13 days. Throughout September, 270mm (10.6") of precipitation is accumulated. Throughout the year, there are 131 rainfall days, and 2659mm (104.7") of precipitation is accumulated.

Sea temperature

In Kalutara, the average water temperature is 27.8°C (82°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

The average length of the day is 12.2h.

Sunshine

Months with the least sunshine in Kalutara are May through October, with an average of 6h of sunshine.

UV index

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

What is the coldest month in Kalutara?

June through December, with an average high-temperature of 30°C (86°F), are the coldest months in Kalutara.

What is the temperature in September in Kalutara?

The average high-temperature, in September, in Kalutara, Sri Lanka, is 30°C (86°F), while the average low-temperature is 25°C (77°F).

How many days does it rain in September in Kalutara?

In Kalutara, Sri Lanka, during September, the rain falls for 13 days and regularly aggregates up to 270mm (10.6") of precipitation.

What is the sea water temperature in September in Kalutara?

In Kalutara, Sri Lanka, in September, the average water temperature is 27.8°C (82°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 September in Kalutara?

In Kalutara, Sri Lanka, the average length of the day in September is 12.2h.

What is the month with the least sunshine in Kalutara?

Months with the least sunshine in Kalutara are May through October, with an average of 6h of sunshine.

How many hours of sunshine does Kalutara have in September?

In September, the average sunshine in Kalutara is 6h.

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

February through October, with an average UV index of 12, are months with the highest UV index in Kalutara.

What is the UV index intensity in September in Kalutara?

In September, the average UV index is 12.
Average temperature in September - Kalutara, Sri Lanka
  • Average high temperature in September: 30°C

The warmest month (with the highest average high temperature) is April (32°C).
Months with the lowest average high temperature are June, July, August, September, October, November and December (30°C).

  • Average low temperature in September: 25°C

Months with the highest average low temperature are May, June, July, August and September (25°C).
The coldest month (with the lowest average low temperature) is January (22°C).

Average rainfall in September - Kalutara, Sri Lanka
  • Average rainfall in September: 270mm

The wettest month (with the highest rainfall) is May (388mm).
The driest month (with the lowest rainfall) is January (73mm).

Average rainfall days in September - Kalutara, Sri Lanka
  • Average rainfall days in September: 13 days

The month with the highest number of rainy days is October (15 days).
Months with the lowest number of rainy days are January and February (5 days).

Average sea temperature in September - Kalutara, Sri Lanka
  • Average sea temperature in September: 27.8°C

The best month for swimming (with the highest average sea temperature) is April (29.6°C).
The coldest month (with the lowest average sea temperature) is August (27.2°C).

Average daylight in September / Average sunshine in September - Kalutara, Sri Lanka
  • Average daylight in September: 12.2h

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

  • Average sunshine in September: 6h

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

Average UV index in September - Kalutara, Sri Lanka
  • Average UV index in September: 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 January, November and December (UV index 11).

deutscheenglishespañolрусский中文