Trincomalee Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Trincomalee.
Climate overview of Trincomalee
The climate in Trincomalee, Trincomalee District, Sri Lanka, is remarkably consistent, with temperatures year-round averaging 31°C (88°F). The warmest month is June at 34°C (93°F), and the coolest is January at 28°C (82°F).
Rainfall is high, totalling around 1325 mm (52 in) per year. November is the wettest month and June the driest. The city also experiences distinct dry (June to July) and wet (October to December) seasons. Sunshine peaks in March, when the city sees around 9.1 hours of sunshine per day.
Trincomalee Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Trincomalee — and find the best time to visit.
Monthly Temperature in Trincomalee
In Trincomalee temperatures are generally consistent throughout the year. Average maximum daytime temperatures range from a very warm 34°C (93°F) in June, the warmest time of the year, to a comfortable 28°C (82°F) during cooler months like January.
At night, you can expect temperatures ranging from 27°C (81°F) in June to around 25°C (77°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Trincomalee
Trincomalee experiences significant rainfall throughout the year, averaging 1325 mm (52 in) of precipitation annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, November it receives heavy rainfall, averaging 317 mm (12 in) of precipitation, recorded across 16 rainy days. In contrast, the driest month June brings less rainfall, with 20 mm (0.8 in) over 2 rainy days. For more details, please visit our Trincomalee Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Trincomalee
While the amount of sunshine in Trincomalee varies throughout the year, all seasons offer their own charm. Enjoy up to 9.1 hours of daily sun in March, and experience slightly darker atmosphere in November, with about 5.6 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Water Temperature in Trincomalee
The mean water temperature over the year ranges from 26°C (79°F) in August to 28°C (82°F) in February.
Water temperature over the year
Humidity in Trincomalee by Month
The relative humidity is high throughout the year in Trincomalee.
The city experiences its highest humidity in December, reaching 80%. In July, the humidity drops to its lowest level at 59%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Trincomalee
The mean wind speed over the year ranges from 2 m/s (4 knots) in March and April to 5 m/s (10 knots) in June. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Trincomalee
To make the most of your visit, consider exploring early in the morning or during the pleasant late afternoon hours when the temperature is most comfortable.
Be aware that October, November and December constitute the rainy season, with significant precipitation. Looking for inspiration on where to travel this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
Frequently asked questions about the climate in Trincomalee
What is the best time to visit Trincomalee?
February typically offers the most optimal weather in Trincomalee. In contrast, May, June, July, August, October, November and December tend to have less optimal conditions. Trincomalee has distinct dry (June to July) and wet (October to December) seasons.
What temperatures can I expect in Trincomalee?
Daytime highs range from 28°C (82°F) in January to 34°C (93°F) in June. Nighttime lows range from 25°C (77°F) to 27°C (81°F). Temperatures stay relatively stable year-round.
How much rain does Trincomalee get?
Annual rainfall is around 1325 mm (52 in). November is the wettest month with 317 mm (12 in), while June is the driest with 20 mm (0.8 in).
How sunny is Trincomalee?
Trincomalee receives around 2,701 hours of sunshine per year. March is the sunniest month with 273 hours, while November is the cloudiest with just 168 hours. Overall, Trincomalee enjoys abundant sunshine.
Trincomalee 3-Day Forecast
Trincomalee 3-Day Forecast
Trincomalee on the map
Trincomalee is highlighted — select any city to see its climate.
Popular this month
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Colombo
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28°C (82°F) Unawatuna29°C (84°F) Nuwara Eliya27°C (81°F) 
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