January weather forecast
Trincomalee, Sri Lanka

Weather in January

January, like December, in Trincomalee, Sri Lanka, is another warm winter month, with an average temperature varying between 20°C (68°F) and 29.3°C (84.7°F).

Temperature

January and December, with an average high-temperature of 29.3°C (84.7°F), are the coldest months.

Heat index

The average heat index in January is evaluated at a very hot 36.1°C (97°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'real feel', or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like metabolic differences, pregnancy, differences in body mass, height, and shape, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

In Trincomalee, the average relative humidity in January is 82%.

Rainfall

In Trincomalee, in January, it is raining for 16 days, with typically 42mm (1.65") of accumulated precipitation. In Trincomalee, during the entire year, the rain falls for 196.8 days and collects up to 943mm (37.13") of precipitation.

Sea temperature

With an average sea temperature of 27.1°C (80.8°F), January is the month with the coldest seawater in Trincomalee.
Note: 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

In Trincomalee, Sri Lanka, the average length of the day in January is 11h and 41min.
On the first day of the month, sunrise is at 06:19 and sunset at 17:57. On the last day of January, sunrise is at 06:25 and sunset at 18:11 +0530.

Sunshine

In January, the average sunshine in Trincomalee, Sri Lanka, is 7.4h.

UV index

January, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 6 in January transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. 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 the 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. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
[Resources]

FAQ

What is the coldest month in Trincomalee?

The coldest months in Trincomalee, Sri Lanka, are January and December, with an average high-temperature of 29.3°C (84.7°F).

What is the temperature in January in Trincomalee?

The average high-temperature, in January, is 29.3°C (84.7°F), while the average low-temperature is 20°C (68°F). In January, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 36.1°C (97°F).

What is the average humidity in January in Trincomalee?

In January, the average relative humidity in Trincomalee, Sri Lanka, is 82%.

How many days does it rain in January in Trincomalee?

In Trincomalee, in January, it is raining for 16 days, with typically 42mm (1.65") of accumulated precipitation.

When is the sea coldest in Trincomalee?

January is the month with the coldest seawater in Trincomalee, with an average sea temperature of 27.1°C (80.8°F).

How warm is the water in January in Trincomalee?

In Trincomalee, Sri Lanka, in January, the average water temperature is 27.1°C (80.8°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.

How many hours of daylight does Trincomalee have in January?

In Trincomalee, the average day length in January is 11h and 41min.

What time are sunrise and sunset in January in Trincomalee?

On the first day of January in Trincomalee, Sri Lanka, sunrise is at 06:19 and sunset at 17:57. On the last day of the month, sunrise is at 06:25 and sunset at 18:11 +0530.

How many hours of sunshine does Trincomalee have in January?

In January, the average sunshine duration in Trincomalee, Sri Lanka, is 7.4h.

What is the month with the lowest UV index in Trincomalee?

January, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Trincomalee.

What is the UV index reading in January in Trincomalee?

In January, the average daily maximum UV index in Trincomalee is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.

Average temperature in January
Trincomalee, Sri Lanka

Average temperature in January - Trincomalee, Sri Lanka
  • Average high temperature in January: 29.3°C

The warmest month (with the highest average high temperature) is April (34.9°C).
The months with the lowest average high temperature are January and December (29.3°C).

  • Average low temperature in January: 20°C

The month with the highest average low temperature is June (24.8°C).
The coldest months (with the lowest average low temperature) are January and February (20°C).

[Resources]

Average pressure in January
Trincomalee, Sri Lanka

Average pressure in January - Trincomalee, Sri Lanka
  • Average pressure in January: 1012mbar

The month with the highest atmospheric pressure is January (1012mbar).
The month with the lowest atmospheric pressure is June (1007.5mbar).

[Resources]

Average wind speed in January
Trincomalee, Sri Lanka

Average wind speed in January - Trincomalee, Sri Lanka
  • Average wind speed in January: 9.9km/h

The windiest month (with the highest average wind speed) is June (23.8km/h).
The calmest month (with the lowest average wind speed) is April (7.1km/h).

[Resources]

Average humidity in January
Trincomalee, Sri Lanka

Average humidity in January - Trincomalee, Sri Lanka
  • Average humidity in January: 82%

The month with the highest relative humidity is December (84%).
The months with the lowest relative humidity are June, July, August and September (67%).

[Resources]

Average rainfall in January
Trincomalee, Sri Lanka

Average rainfall in January - Trincomalee, Sri Lanka
  • Average rainfall in January: 42mm

The wettest month (with the highest rainfall) is October (214mm).
The driest month (with the least rainfall) is June (15mm).

[Resources]

Average rainfall days in January
Trincomalee, Sri Lanka

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

The month with the highest number of rainy days is November (24.1 days).
The month with the least rainy days is June (7.8 days).

[Resources]

Average sea temperature in January
Trincomalee, Sri Lanka

Average sea temperature in January - Trincomalee, Sri Lanka
  • Average sea temperature in January: 27.1°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).

[Resources]

Average daylight in January /
Average sunshine in January
Trincomalee, Sri Lanka

Average daylight in January / Average sunshine in January - Trincomalee, Sri Lanka
  • Average daylight in January: 11h and 41min

The month with the longest days is June (Average daylight: 12h and 37min).
The month with the shortest days is December (Average daylight: 11h and 38min).

  • Average sunshine in January: 7.4h

The month with the most sunshine is June (Average sunshine: 11.3h).
The month with the least sunshine is December (Average sunshine: 4.9h).

[Resources]

Average sunshine days in January
Trincomalee, Sri Lanka

Average sunshine days in January - Trincomalee, Sri Lanka
  • Average sunshine days in January: 11.7 days

The month with the most sunshine days is July (16 days).
The month with the least sunshine days is November (4.2 days).

[Resources]

Average UV index in January
Trincomalee, Sri Lanka

Average UV index in January - Trincomalee, Sri Lanka
  • Average UV index in January: 6

The months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, November and December (UV index 6).

[Resources]

Average cloud cover in January
Trincomalee, Sri Lanka

Average cloud cover in January - Trincomalee, Sri Lanka
  • Average cloud cover in January: 49

The month with the most cloud cover is December (Cloud cover 56).
The month with the least cloud cover is May (Cloud cover 26).

[Resources]

Average visibility in January
Trincomalee, Sri Lanka

Average visibility in January - Trincomalee, Sri Lanka
  • Average visibility in January: 7km

The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January and December (7km).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location