Trincomalee Temperature by Month

Trincomalee in Trincomalee District, Sri Lanka enjoys a stable climate, with daytime temperatures staying close to 31°C (88°F) throughout the year. Explore the full monthly breakdown below.

The climate in Trincomalee remains fairly constant, offering very warm temperatures throughout the year. Maximum daytime temperatures reach a very warm 34°C (93°F) in June, dropping to a comfortable 28°C (82°F) in January. Nighttime lows stay between 27°C (81°F) and 25°C (77°F).

The chart below illustrates the average maximum day and minimum night temperatures in Trincomalee by month:

Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. June, the city's warmest month, sees 231 hours of sunshine.

The chart below shows the average temperature throughout the year:

Trincomalee's average annual maximum temperature is 31°C (88°F). To put that in context, here's how it compares to a few well-known destinations:

Seville, Spain averages 23°C (73°F) a year, one of the warmer cities in Western Europe, with long hot summers.

Queenstown, New Zealand averages 10°C (50°F) annually, remember seasons are flipped, so its coldest months fall in June and July.

Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.

Melbourne, Australia averages 20°C (68°F) annually, known for unpredictable weather, with four seasons sometimes happening in one day.

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In Trincomalee, January is the coolest month, with average highs of 28°C (82°F) and humidity around 79%, considered high. In June, the warmest month, temperatures average 34°C (93°F) with 60% humidity, conditions that feel high. For a full picture, see our humidity page.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained, so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.

For more on Trincomalee's weather, including monthly rainfall, sunshine hours, and humidity, visit our Trincomalee climate page.