January weather forecastTrincomalee, Sri Lanka
January
Weather in January
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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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).
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).
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).
Average daylight in January /
Average sunshine in January
Trincomalee, Sri Lanka
- Average daylight in January: 11h and 42min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in January: 7h and 24min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
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).
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).
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).
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).





