Average annual temperature is 27.0 °C
Absolute maximum temperature: 34.0 °C
Absolute minimum temperature: 20.4 °C
Number of sunny days: 33 days
Number of rainy days: 332 days
Look at detailed online map of Ranna West
* Weather data for Ranna 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) | 32.1 | 32.1 | 32.3 | 33.8 | 33.6 | 33.4 | 33.2 | 34.0 | 30.9 | 29.8 | 30.6 | 30.9 |
| Average daytime temperature (°C) | 30.2 | 30.4 | 30.7 | 31.7 | 31.3 | 32.3 | 31.0 | 32.6 | 29.2 | 28.5 | 28.8 | 29.1 |
| Average temperature (°C) | 26.0 | 26.3 | 27.0 | 27.9 | 28.0 | 28.3 | 27.7 | 28.5 | 26.4 | 25.8 | 25.9 | 26.2 |
| Average night temperature (°C) | 22.8 | 23.4 | 24.2 | 24.8 | 25.6 | 25.4 | 25.1 | 25.3 | 24.1 | 23.8 | 23.7 | 24.1 |
| Absolute minimum temperature (°C) | 20.4 | 22.3 | 23.1 | 23.9 | 24.1 | 24.3 | 23.7 | 23.5 | 23.4 | 23.0 | 23.0 | 23.0 |
| 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 | 12.4 | 12.3 | 12.2 | 12.0 | 11.8 | 11.8 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.6 | 10.1 | 10.2 | 10.3 | 9.8 | 10.9 | 10.0 | 10.9 | 8.9 | 7.9 | 8.7 | 8.2 |
| Precipitation (mm) | 72 | 96 | 111 | 80 | 89 | 30 | 74 | 41 | 222 | 341 | 362 | 320 |
| Sunny days | 8 | 8 | 0 | 2 | 3 | 2 | 5 | 3 | 0 | 0 | 0 | 2 |
| Rainy days | 23 | 20 | 31 | 28 | 28 | 28 | 26 | 28 | 30 | 31 | 30 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ranna West is at