Average annual temperature is 26.8 °C
Absolute maximum temperature: 37.9 °C
Absolute minimum temperature: 16.1 °C
Number of sunny days: 63 days
Number of rainy days: 302 days
Look at detailed online map of Ethiliwewa
* Weather data for Ethiliwewa 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) | 33.1 | 33.8 | 37.3 | 37.7 | 37.9 | 36.8 | 35.7 | 37.8 | 32.4 | 31.6 | 30.8 | 30.3 |
| Average daytime temperature (°C) | 30.9 | 31.2 | 32.9 | 34.1 | 32.7 | 35.2 | 33.7 | 35.9 | 30.8 | 29.8 | 29.6 | 29.1 |
| Average temperature (°C) | 25.3 | 25.8 | 26.9 | 27.4 | 27.7 | 29.3 | 28.5 | 29.3 | 26.2 | 25.0 | 24.8 | 25.2 |
| Average night temperature (°C) | 20.1 | 21.0 | 22.7 | 23.0 | 24.3 | 25.6 | 24.8 | 24.8 | 23.5 | 22.4 | 22.0 | 22.5 |
| Absolute minimum temperature (°C) | 16.1 | 19.0 | 21.1 | 21.7 | 23.0 | 24.3 | 22.7 | 23.0 | 22.3 | 21.5 | 20.9 | 21.2 |
| 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) | 9.6 | 10.0 | 9.9 | 9.7 | 9.3 | 10.9 | 10.1 | 11.1 | 9.2 | 7.8 | 7.6 | 8.2 |
| Precipitation (mm) | 77 | 85 | 100 | 157 | 190 | 35 | 36 | 33 | 191 | 413 | 491 | 275 |
| Sunny days | 17 | 9 | 2 | 1 | 5 | 5 | 10 | 8 | 1 | 0 | 0 | 5 |
| Rainy days | 14 | 19 | 29 | 29 | 26 | 25 | 21 | 23 | 29 | 31 | 30 | 26 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ethiliwewa is at