Average annual temperature is 26.3 °C
Absolute maximum temperature: 32.6 °C
Absolute minimum temperature: 20.2 °C
Number of sunny days: 23 days
Number of rainy days: 342 days
Look at detailed online map of Gonawala West
* Weather data for Gonawala West 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) | 31.1 | 32.6 | 32.4 | 32.2 | 30.8 | 30.3 | 29.6 | 30.1 | 29.8 | 29.9 | 30.4 | 32.0 |
| Average daytime temperature (°C) | 29.7 | 29.8 | 30.3 | 31.2 | 29.8 | 29.2 | 28.8 | 29.1 | 28.3 | 28.5 | 29.0 | 29.6 |
| Average temperature (°C) | 25.2 | 25.6 | 26.5 | 27.3 | 27.3 | 27.0 | 26.9 | 27.0 | 26.0 | 25.6 | 25.5 | 25.9 |
| Average night temperature (°C) | 21.7 | 22.2 | 23.3 | 24.1 | 25.3 | 25.0 | 25.1 | 25.1 | 24.4 | 23.4 | 23.2 | 23.4 |
| Absolute minimum temperature (°C) | 20.2 | 20.4 | 22.5 | 22.8 | 23.6 | 23.8 | 23.1 | 24.3 | 23.6 | 22.4 | 22.5 | 22.4 |
| 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) | 11.8 | 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) | 9.5 | 9.9 | 10.3 | 10.3 | 8.6 | 9.0 | 9.8 | 10.8 | 6.8 | 7.1 | 7.4 | 7.7 |
| Precipitation (mm) | 85 | 67 | 141 | 143 | 233 | 380 | 248 | 152 | 556 | 558 | 488 | 410 |
| Sunny days | 12 | 7 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Rainy days | 19 | 21 | 30 | 28 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Gonawala West is at