Average annual temperature is 26.1 °C
Absolute maximum temperature: 39.2 °C
Absolute minimum temperature: 17.9 °C
Number of sunny days: 43 days
Number of rainy days: 322 days
Look at detailed online map of Gonawala
* Weather data for Gonawala 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) | 28.4 | 29.7 | 32.1 | 33.8 | 35.1 | 36.3 | 38.4 | 39.2 | 33.7 | 31.5 | 30.7 | 30.5 |
| Average daytime temperature (°C) | 27.1 | 27.8 | 29.2 | 31.4 | 32.2 | 35.1 | 35.2 | 36.9 | 31.8 | 29.9 | 29.1 | 28.1 |
| Average temperature (°C) | 23.3 | 23.9 | 24.9 | 26.3 | 27.0 | 28.7 | 28.8 | 29.4 | 26.3 | 25.0 | 24.6 | 24.5 |
| Average night temperature (°C) | 20.5 | 20.9 | 21.5 | 22.3 | 23.1 | 23.9 | 23.9 | 23.9 | 22.8 | 22.1 | 21.9 | 22.2 |
| Absolute minimum temperature (°C) | 17.9 | 18.6 | 20.8 | 21.2 | 21.3 | 22.6 | 22.7 | 22.7 | 21.9 | 21.2 | 21.3 | 21.1 |
| 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) | 8.5 | 8.8 | 8.9 | 10.1 | 9.3 | 10.6 | 9.7 | 10.9 | 8.8 | 8.2 | 7.1 | 6.8 |
| Precipitation (mm) | 178 | 151 | 149 | 95 | 131 | 48 | 38 | 72 | 222 | 403 | 444 | 505 |
| Sunny days | 8 | 7 | 6 | 4 | 4 | 3 | 6 | 5 | 0 | 0 | 0 | 0 |
| Rainy days | 23 | 21 | 25 | 26 | 27 | 27 | 25 | 26 | 30 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Gonawala is at