Matara
Sri Lanka
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Matara, Sri Lanka

December, the first month of the winter, in Matara, is also a hot month, with average temperature varying between 23°C (73.4°F) and 30°C (86°F).

Temperature

In December, the average high-temperature remains the same as in November - a still tropical 30°C (86°F). In Matara, Sri Lanka, the average low-temperature is 23°C (73.4°F).

Rainfall

In Matara, Sri Lanka, during December, the rain falls for 10 days and regularly aggregates up to 162mm (6.4") of precipitation. Throughout the year, in Matara, there are 112 rainfall days, and 2024mm (79.7") of precipitation is accumulated.

Sea temperature

In Matara, the average seawater temperature in December is 28.1°C (82.6°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

January and December, with an average of 11.8h of daylight, are months with the shortest days.

Sunshine

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

UV index

November and December, with an average maximum UV index of 11, are months with the lowest UV index. A UV Index reading of 11, and higher, represents an excessive health risk from the exposure to the Sun's UV rays for ordinary individuals.
The daily maximum UV index of 11 interpret into the following advice:
Take all required precautions, as unprotected skin and eyes 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. 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. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in December in Matara?

In December, in Matara, the average high-temperature is 30°C (86°F), and the average low-temperature is 23°C (73.4°F).

How many days does it rain in December in Matara?

In Matara, in December, during 10 rainfall days, 162mm (6.4") of precipitation is typically accumulated.

What is the water temperature in December in Matara?

In December, the average sea temperature in Matara is 28.1°C (82.6°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 month with the shortest days in Matara?

January and December, with an average of 11.8h of daylight, are months with the shortest days in Matara, Sri Lanka.

How many hours of daylight does Matara have in December?

In Matara, Sri Lanka, the average length of the day in December is 11.8h.

What is the month with the least sunshine in Matara?

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

How long on average sun shines in December in Matara?

In Matara, Sri Lanka, the average sunshine in December is 6h.

When is the lowest UV index in Matara?

November and December, with an average maximum UV index of 11, are months with the lowest UV index in Matara.

How high is the UV index in December in Matara?

In Matara, Sri Lanka, the average daily maximum UV index in December is 11. A UV Index value of 11, and more, symbolizes an excessive health risk from the exposure to the Sun's UV rays.
Average temperature in December - Matara, Sri Lanka
  • Average high temperature in December: 30°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 December: 23°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 December - Matara, Sri Lanka
  • Average rainfall in December: 162mm

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

Average rainfall days in December - Matara, Sri Lanka
  • Average rainfall days in December: 10 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 December - Matara, Sri Lanka
  • Average sea temperature in December: 28.1°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 December / Average sunshine in December - Matara, Sri Lanka
  • Average daylight in December: 11.8h

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 December: 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 December - Matara, Sri Lanka
  • Average UV index in December: 11

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).