Trincomalee
December
Weather in Trincomalee for December 2025
Your guide to Trincomalee weather in December - trends and predictions
Until now, December 2025 in Trincomalee is slightly cooler than the historical average by -1.1 °C.
Expect cooler weather in the next days in Trincomalee with the forecast suggesting a temperature of 26.1 °C, lower than the historical average.
In general, the average temperature in Trincomalee at the beginning of December is 29.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 26.1 °C by the end of December.
Trincomalee experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 128.6 mm.
Temperatures
Rain 🌧️
10
Dry days
21
Rainy days
0
Snow days
29°/21°
Temperatures
13 km/h
Avg max wind
84 %
Avg humidity
Trincomalee Weather December
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Temperatures trend during December in Trincomalee
See the weather trend as well as the moving average line
December weather in Trincomalee day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Patchy rain possible | 29° /21° | 0.1 mm | 6 | |
| 2 Dec. | Light rain shower | 29° /21° | 2 mm | 6 | |
| 3 Dec. | Patchy rain possible | 31° /21° | 1 mm | 7 | |
| 4 Dec. |  Fog | 31° /21° | 0.5 mm | 7 | |
| 5 Dec. | Light rain shower | 29° /21° | 3.1 mm | 7 | |
| 6 Dec. | Patchy rain possible | 30° /21° | 0 mm | 7 | |
| 7 Dec. | Patchy rain possible | 29° /21° | 2.4 mm | 6 | |
| 8 Dec. | Light rain shower | 29° /21° | 1.9 mm | 6 | |
| 9 Dec. | Patchy rain possible | 27° /21° | 2.8 mm | 6 | |
| 10 Dec. | Patchy rain possible | 28° /21° | 5.9 mm | 7 | |
| 11 Dec. | Light rain shower | 27° /21° | 14.6 mm | 6 | |
| 12 Dec. | Light rain shower | 27° /21° | 4.7 mm | 6 | |
| 13 Dec. | Light rain shower | 27° /21° | 12.7 mm | 6 | |
| 14 Dec. | Light rain shower | 27° /20° | 4.8 mm | 6 | |
| 15 Dec. | Patchy rain possible | 28° /20° | 0.1 mm | 6 | |
| 16 Dec. | Light rain shower | 25° /22° | 1.1 mm | 6 | |
| 17 Dec. |  Moderate rain | 26° /26° | 16.1 mm | 1.8 | |
| 18 Dec. | Moderate rain | 27° /26° | 7.5 mm | 2.2 | |
| 19 Dec. | Patchy rain possible | 26° /26° | 0.2 mm | 1.6 | |
| 20 Dec. |  Cloudy | 26° /25° | 0.1 mm | 1.8 | |
| 21 Dec. |  Partly cloudy | 26° /25° | 0 mm | 7 | |
| 22 Dec. | Partly cloudy | 26° /25° | 0 mm | 7 | |
| 23 Dec. | Cloudy | 26° /25° | 0 mm | 6 | |
| 24 Dec. |  Sunny | 26° /25° | 0 mm | 7 | |
| 25 Dec. | Partly cloudy | 26° /24° | 0 mm | 6 | |
| 26 Dec. | Partly cloudy | 26° /24° | 0.1 mm | 7 | |
| 27 Dec. | Patchy rain possible | 26° /25° | 0.2 mm | 6 | |
| 28 Dec. | Cloudy | 26° /25° | 0 mm | 6 | |
| 29 Dec. | Partly cloudy | 26° /25° | 0.1 mm | 7 | |
| 30 Dec. | Patchy rain possible | 27° /25° | 2.4 mm | 6 | |
| 31 Dec. | Light rain shower | 26° /21° | 7.4 mm | 6 | |
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Important Notice
Our weather forecast for Trincomalee in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Trincomalee forecast closer to your planned date for the most up-to-date weather information.
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Trincomalee in December - FAQ
What are the expected maximum and minimum temperatures in Trincomalee during December?
During December, expect a variety of temperatures with highs around 29° and lows near 21°, suitable for diverse activities and preferences.
How much rainfall should be expected in Trincomalee during December?
Significant rainfall exceeding 128.6 mm is expected in Trincomalee during December, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Trincomalee during December?
The average wind speed in Trincomalee during December is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Trincomalee
Explore the daily rainfall trends and prepare for Trincomalees December weather 💧
Typically, Trincomalee has 21 rainy days in December with a total of 128.6 mm of rainfall.
UV exposure in Trincomalee during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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