Average annual temperature is 27.4 °C
Absolute maximum temperature: 38.8 °C
Absolute minimum temperature: 21.1 °C
Number of sunny days: 70 days
Number of rainy days: 295 days
Look at detailed online map of Trincomalee District
* Weather data for Trincomalee District Sri Lanka is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 29.3 | 30.7 | 33.9 | 36.6 | 36.8 | 36.5 | 38.3 | 38.8 | 35.8 | 34.1 | 31.1 | 32.5 |
| Average daytime temperature (°C) | 27.7 | 28.7 | 30.9 | 33.3 | 33.8 | 35.2 | 35.3 | 36.5 | 33.8 | 31.8 | 29.5 | 28.7 |
| Average temperature (°C) | 24.9 | 25.4 | 26.9 | 28.1 | 28.5 | 29.9 | 29.7 | 29.5 | 28.2 | 26.6 | 25.6 | 25.7 |
| Average night temperature (°C) | 22.5 | 22.6 | 23.9 | 24.7 | 25.4 | 26.3 | 26.2 | 25.5 | 25.1 | 23.8 | 23.3 | 23.5 |
| Absolute minimum temperature (°C) | 21.1 | 21.3 | 22.6 | 23.1 | 23.3 | 25.4 | 25.2 | 24.6 | 24.0 | 23.1 | 22.7 | 22.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.7 | 11.9 | 12.1 | 12.3 | 12.5 | 12.6 | 12.6 | 12.4 | 12.2 | 11.9 | 11.7 | 11.6 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.0 | 9.9 | 10.8 | 10.6 | 9.1 | 10.7 | 9.4 | 10.9 | 9.7 | 9.8 | 7.9 | 8.2 |
| Precipitation (mm) | 150 | 120 | 87 | 80 | 129 | 20 | 39 | 97 | 192 | 423 | 554 | 418 |
| Sunny days | 11 | 12 | 7 | 7 | 8 | 4 | 8 | 8 | 3 | 2 | 0 | 0 |
| Rainy days | 20 | 16 | 24 | 23 | 23 | 26 | 23 | 23 | 27 | 29 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Trincomalee District is at