Average annual temperature is 26.8 °C
Absolute maximum temperature: 39.5 °C
Absolute minimum temperature: 19.9 °C
Number of sunny days: 38 days
Number of rainy days: 327 days
Look at detailed online map of Pannalgama
* Weather data for Pannalgama 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 | 30.5 | 33.1 | 34.7 | 35.4 | 37.1 | 38.4 | 39.5 | 36.5 | 32.3 | 31.1 | 31.2 |
| Average daytime temperature (°C) | 27.9 | 28.4 | 30.0 | 32.0 | 32.8 | 35.5 | 35.4 | 37.3 | 33.5 | 30.6 | 29.7 | 28.7 |
| Average temperature (°C) | 24.2 | 24.6 | 25.7 | 26.9 | 27.6 | 29.1 | 29.1 | 30.1 | 27.9 | 25.8 | 25.3 | 25.2 |
| Average night temperature (°C) | 21.5 | 22.0 | 22.6 | 23.6 | 24.2 | 24.9 | 24.8 | 25.2 | 24.6 | 23.1 | 22.9 | 23.1 |
| Absolute minimum temperature (°C) | 19.9 | 20.6 | 21.9 | 22.5 | 22.9 | 23.9 | 23.6 | 24.2 | 23.1 | 22.2 | 21.9 | 22.6 |
| 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) | 11.8 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 | 12.5 | 12.3 | 12.2 | 12.0 | 11.8 | 11.7 |
| 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 | 9.3 | 9.7 | 10.3 | 9.5 | 10.6 | 9.6 | 10.9 | 9.6 | 8.7 | 8.0 | 7.4 |
| Precipitation (mm) | 137 | 171 | 140 | 102 | 132 | 66 | 50 | 43 | 130 | 387 | 482 | 479 |
| Sunny days | 6 | 5 | 5 | 1 | 7 | 2 | 7 | 3 | 2 | 0 | 0 | 0 |
| Rainy days | 25 | 23 | 26 | 29 | 24 | 28 | 24 | 28 | 28 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Pannalgama is at