Average annual temperature is 27.2 °C
Absolute maximum temperature: 39.3 °C
Absolute minimum temperature: 18.2 °C
Number of sunny days: 95 days
Number of rainy days: 270 days
Look at detailed online map of Vannankulam
* Weather data for Vannankulam 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) | 29.0 | 31.1 | 35.5 | 37.7 | 37.1 | 37.9 | 38.6 | 39.3 | 36.2 | 35.1 | 31.9 | 31.0 |
| Average daytime temperature (°C) | 27.9 | 29.2 | 32.4 | 34.8 | 32.9 | 34.8 | 35.4 | 36.7 | 34.0 | 32.0 | 29.4 | 28.6 |
| Average temperature (°C) | 23.8 | 24.6 | 26.8 | 28.2 | 28.2 | 29.7 | 29.6 | 29.7 | 28.5 | 26.5 | 25.3 | 25.3 |
| Average night temperature (°C) | 20.7 | 20.9 | 22.9 | 23.7 | 25.0 | 26.2 | 25.9 | 25.3 | 25.0 | 23.4 | 22.8 | 23.1 |
| Absolute minimum temperature (°C) | 18.2 | 18.5 | 21.8 | 22.3 | 23.1 | 25.1 | 25.0 | 24.5 | 24.2 | 22.4 | 22.0 | 22.7 |
| 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 | 11.8 | 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) | 9.0 | 10.1 | 10.8 | 10.4 | 8.8 | 10.4 | 9.7 | 10.8 | 10.0 | 8.9 | 7.0 | 7.6 |
| Precipitation (mm) | 103 | 88 | 57 | 138 | 103 | 22 | 31 | 70 | 77 | 289 | 505 | 244 |
| Sunny days | 16 | 15 | 9 | 8 | 6 | 8 | 11 | 15 | 4 | 1 | 1 | 1 |
| Rainy days | 15 | 13 | 22 | 22 | 25 | 22 | 20 | 16 | 26 | 30 | 29 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Vannankulam is at