January weather forecast
Trincomalee, Sri Lanka

A new year emerges in Trincomalee with slightly cooler temperatures compared to the year-ending December. January flaunts an impressive balance between rainfall and sunshine, providing visitors with ample time to explore. Hosting the region's wet season, the month still holds a blend of rain and shine. The sea temperature sustains a warmth that invites swimming enthusiasts. In spite of higher humidity levels, a pressure of 1012 mb relieves the intensity.

Temperature

January and December represent the coldest period in Trincomalee, with an average high-temperature of 29.3°C (84.7°F).

Heat index

The heat index in January is estimated at a fiery hot 36°C (96.8°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

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

Rainfall

In Trincomalee, during January, the rain falls for 16 days and regularly aggregates up to 42mm (1.65") of 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

The month with the coldest seawater in Trincomalee is January, with an average sea temperature of 27.1°C (80.8°F).
Note: Swimming, diving, and similar water activities in temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are seen as very agreeable and pleasurable for lengthy periods without discomfort.

Daylight

The average length of the day in January in Trincomalee is 11h and 41min.
On the first day of January, 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.

Sunshine

The average sunshine in January in Trincomalee is 7.4h.

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 6 in January translates into this advice:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.