Average annual temperature is 26.7 °C
Absolute maximum temperature: 37.7 °C
Absolute minimum temperature: 17.5 °C
Number of sunny days: 77 days
Number of rainy days: 288 days
Look at detailed online map of Gonewa
* Weather data for Gonewa 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) | 29.1 | 31.1 | 33.9 | 35.3 | 34.6 | 34.3 | 36.9 | 37.7 | 35.7 | 33.9 | 31.6 | 31.4 |
| Average daytime temperature (°C) | 28.0 | 29.5 | 31.6 | 33.5 | 32.0 | 33.2 | 33.7 | 35.5 | 33.0 | 31.6 | 29.7 | 28.8 |
| Average temperature (°C) | 23.7 | 24.6 | 26.4 | 27.6 | 27.6 | 28.6 | 28.6 | 28.9 | 27.6 | 26.1 | 25.2 | 25.1 |
| Average night temperature (°C) | 20.5 | 20.9 | 22.6 | 23.6 | 24.8 | 25.4 | 25.2 | 24.9 | 24.3 | 23.2 | 22.7 | 22.8 |
| Absolute minimum temperature (°C) | 17.5 | 18.9 | 21.4 | 22.4 | 23.2 | 24.2 | 24.4 | 24.1 | 23.6 | 22.3 | 21.9 | 22.3 |
| 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) | 9.3 | 10.0 | 10.7 | 10.3 | 8.8 | 10.6 | 9.5 | 10.8 | 9.5 | 8.9 | 7.1 | 7.5 |
| Precipitation (mm) | 89 | 111 | 68 | 129 | 116 | 21 | 28 | 105 | 70 | 319 | 487 | 288 |
| Sunny days | 14 | 16 | 7 | 9 | 6 | 6 | 6 | 12 | 1 | 0 | 0 | 0 |
| Rainy days | 17 | 12 | 24 | 21 | 25 | 24 | 25 | 19 | 29 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Gonewa is at