September weather forecast and climate
Matara, Sri Lanka

The first month of the autumn, September, is still a warm month in Matara, Sri Lanka, with temperature in the range of an average low of 24°C (75.2°F) and an average high of 29°C (84.2°F).

Temperature

August through October, with an average high-temperature of 29°C (84.2°F), are the coldest months.

Rainfall

In Matara, Sri Lanka, during 11 rainfall days, 191mm (7.5") of precipitation is typically accumulated. Throughout the year, there are 112 rainfall days, and 2024mm (79.7") of precipitation is accumulated.

Sea temperature

In Matara, Sri Lanka, the average water temperature is 28.3°C (82.9°F). 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 September, the average length of the day in Matara is 12.2h.

Sunshine

Months with the least sunshine are May through December, with an average of 6h of sunshine.

UV index

Months with the highest UV index are January through October, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an excessive health risk from unsafe exposure to the UV radiation for ordinary individuals.
The daily maximum UV index of 12 interpret into the following advice:
Take all necessary precautions, as unprotected skin can burn in minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. 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 strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the coldest month in Matara?

August through October, with an average high-temperature of 29°C (84.2°F), are the coldest months in Matara.

What is the temperature in September in Matara?

In Matara, Sri Lanka, in September, the average high-temperature is 29°C (84.2°F), and the average low-temperature is 24°C (75.2°F).

How many days does it rain in September in Matara?

In Matara, during September, the rain falls for 11 days and regularly aggregates up to 191mm (7.5") of precipitation.

What is the sea water temperature in September in Matara?

In Matara, the average seawater temperature in September is 28.3°C (82.9°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.

How many hours of daylight does Matara have in September?

In September, the average length of the day is 12.2h.

What is the month with the least sunshine in Matara?

Months with the least sunshine in Matara, Sri Lanka, are May through December, with an average of 6h of sunshine.

How long on average sun shines in September in Matara?

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

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

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

What is the UV index intensity in September in Matara?

The average daily maximum UV index in September in Matara is 12. A UV Index estimate of 11, and higher, represents an ultimate hazard to health from the exposure to the Sun's UV radiation.
Average temperature in September - Matara, Sri Lanka
  • Average high temperature in September: 29°C

Warmest months (with the highest average high temperature) are March and April (31°C).
Months with the lowest average high temperature are August, September and October (29°C).

  • Average low temperature in September: 24°C

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

Average rainfall in September - Matara, Sri Lanka
  • Average rainfall in September: 191mm

The wettest month (with the highest rainfall) is October (279mm).
The driest month (with the lowest rainfall) is January (84mm).

Average rainfall days in September - Matara, Sri Lanka
  • Average rainfall days in September: 11 days

The month with the highest number of rainy days is November (14 days).
Months with the lowest number of rainy days are January and February (5 days).

Average sea temperature in September - Matara, Sri Lanka
  • Average sea temperature in September: 28.3°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 January (27.7°C).

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

The month with the longest days is June (Average daylight: 12.5h).
Months with shortest days are January and December (Average daylight: 11.8h).

  • Average sunshine in September: 6h

Months with most sunshine are February and March (Average sunshine: 8h).
Months with least sunshine are May, June, July, August, September, October, November and December (Average sunshine: 6).

Average UV index in September - Matara, Sri Lanka
  • Average UV index in September: 12

Months with the highest UV index are January, 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 11).

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