Trincomalee
Sri Lanka
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Trincomalee, Sri Lanka

The first month of the winter, December, is still a warm month in Trincomalee, Sri Lanka, with average temperature fluctuating between 28.1°C (82.6°F) and 24.2°C (75.6°F).

Temperature

In December, the average high-temperature is essentially the same as in November - a still moderately hot 28.1°C (82.6°F). The average low-temperature, in Trincomalee, is 24.2°C (75.6°F).

Rainfall

December is the month with the most rainfall. Rain falls for 16 days and accumulates 341mm (13.4") of precipitation.

Sea temperature

In December, the average sea temperature in Trincomalee 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.

Daylight

The month with the shortest days in Trincomalee is December, with an average of 11.6h of daylight.

Sunshine

Months with the least sunshine in Trincomalee are November and December, with an average of 6h of sunshine.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 10. A UV Index reading of 8 to 10 represents a very high health vulnerability from the exposure to the Sun's UV radiation for the ordinary person.
The daily maximum UV index of 10 interpret into the following advice:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. 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. 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 reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in December in Trincomalee?

In Trincomalee, in December, the average high-temperature is 28.1°C (82.6°F), and the average low-temperature is 24.2°C (75.6°F).

How much does it rain in Trincomalee in December?

In Trincomalee, during December, the rain falls for 16 days and regularly aggregates up to 341mm (13.4") of precipitation.

What is the wettest month in Trincomalee?

The month with the most rainfall in Trincomalee, Sri Lanka, is December when the rain falls for 16 days and typically aggregates up to 341mm (13.4") of precipitation.

What is the sea water temperature in December in Trincomalee?

In December, the average sea temperature in Trincomalee 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 month with the shortest days in Trincomalee?

December has the shortest days of the year in Trincomalee, Sri Lanka, with an average of 11.6h of daylight.

How many hours of daylight does Trincomalee have in December?

In December, the average length of the day in Trincomalee, Sri Lanka, is 11.6h.

What is the month with the least sunshine in Trincomalee?

November and December, with an average of 6h of sunshine, are months with the least sunshine.

How many hours of sunshine does Trincomalee have in December?

The average sunshine in December in Trincomalee is 6h.

When is the lowest UV index in Trincomalee?

With an average maximum UV index of 10, December is the month with the lowest UV index in Trincomalee.

How high is the UV index in December in Trincomalee?

In Trincomalee, Sri Lanka, the average daily maximum UV index in December is 10. A UV Index reading of 8 to 10 represents a very high health risk from unprotected exposure to the UV radiation.
Average temperature in December - Trincomalee, Sri Lanka
  • Average high temperature in December: 28.1°C

The warmest month (with the highest average high temperature) is June (34.7°C).
The month with the lowest average high temperature is January (27.9°C).

  • Average low temperature in December: 24.2°C

Months with the highest average low temperature are May and June (26.4°C).
Coldest months (with the lowest average low temperature) are November and December (24.2°C).

Average rainfall in December - Trincomalee, Sri Lanka
  • Average rainfall in December: 341mm

The wettest month (with the highest rainfall) is December (341mm).
The driest month (with the lowest rainfall) is June (26mm).

Average rainfall days in December - Trincomalee, Sri Lanka
  • Average rainfall days in December: 16 days

Months with the highest number of rainy days are November and December (16 days).
The month with the lowest number of rainy days is June (2 days).

Average sea temperature in December - Trincomalee, Sri Lanka
  • Average sea temperature in December: 27.8°C

The best month for swimming (with the highest average sea temperature) is May (30.2°C).
The coldest month (with the lowest average sea temperature) is January (27.1°C).

Average daylight in December / Average sunshine in December - Trincomalee, Sri Lanka
  • Average daylight in December: 11.6h

Months with the longest days are June and July (Average daylight: 12.6h).
The month with shortest days is December (Average daylight: 11.6h).

  • Average sunshine in December: 6h

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

Average UV index in December - Trincomalee, Sri Lanka
  • Average UV index in December: 10

Months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
The month with the lowest UV index is December (UV index 10).