Average annual temperature is 27.7 °C
Absolute maximum temperature: 38.1 °C
Absolute minimum temperature: 21.8 °C
Number of sunny days: 79 days
Number of rainy days: 286 days
Look at detailed online map of Tiriyai
* Weather data for Tiriyai 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) | 28.3 | 29.3 | 32.6 | 35.7 | 36.5 | 37.8 | 37.5 | 38.1 | 35.2 | 34.1 | 29.8 | 32.0 |
| Average daytime temperature (°C) | 27.0 | 27.7 | 29.9 | 32.1 | 33.7 | 35.6 | 35.5 | 36.4 | 33.9 | 31.2 | 28.7 | 28.3 |
| Average temperature (°C) | 25.4 | 25.7 | 26.9 | 28.1 | 28.7 | 30.3 | 29.9 | 29.5 | 28.4 | 26.7 | 26.0 | 26.2 |
| Average night temperature (°C) | 23.8 | 23.8 | 24.2 | 24.8 | 25.6 | 26.7 | 26.5 | 25.7 | 25.4 | 23.9 | 23.9 | 24.4 |
| Absolute minimum temperature (°C) | 21.9 | 21.8 | 23.0 | 23.0 | 24.0 | 25.5 | 25.5 | 24.7 | 24.1 | 23.2 | 23.0 | 23.4 |
| 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 | 11.8 | 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) | 9.3 | 10.2 | 10.9 | 10.6 | 9.4 | 10.5 | 9.6 | 10.9 | 10.1 | 9.8 | 8.0 | 8.2 |
| Precipitation (mm) | 149 | 97 | 62 | 105 | 99 | 25 | 45 | 92 | 131 | 364 | 493 | 350 |
| Sunny days | 8 | 11 | 8 | 10 | 9 | 11 | 11 | 7 | 2 | 2 | 0 | 0 |
| Rainy days | 23 | 17 | 23 | 20 | 22 | 19 | 20 | 24 | 28 | 29 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Tiriyai is at