Average annual temperature is 27.6 °C
Absolute maximum temperature: 38.1 °C
Absolute minimum temperature: 20.9 °C
Number of sunny days: 60 days
Number of rainy days: 305 days
Look at detailed online map of Kayankerni
* Weather data for Kayankerni 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) | 28.8 | 29.3 | 31.8 | 34.6 | 35.8 | 37.8 | 37.9 | 38.1 | 35.1 | 31.5 | 30.7 | 30.4 |
| Average daytime temperature (°C) | 27.4 | 28.1 | 29.7 | 31.7 | 32.8 | 35.9 | 35.4 | 35.4 | 32.5 | 30.3 | 29.1 | 28.6 |
| Average temperature (°C) | 25.2 | 25.7 | 26.8 | 28.0 | 28.4 | 30.5 | 30.2 | 29.7 | 27.8 | 26.3 | 25.9 | 26.1 |
| Average night temperature (°C) | 23.1 | 23.3 | 24.0 | 24.6 | 25.3 | 27.0 | 26.7 | 25.9 | 24.8 | 23.6 | 23.5 | 24.0 |
| Absolute minimum temperature (°C) | 21.1 | 20.9 | 23.0 | 23.2 | 23.7 | 25.9 | 25.0 | 24.4 | 23.0 | 22.5 | 22.7 | 23.2 |
| 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) | 11.7 | 11.9 | 12.1 | 12.3 | 12.5 | 12.6 | 12.5 | 12.4 | 12.2 | 11.9 | 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) | 8.9 | 9.5 | 10.2 | 10.6 | 9.4 | 10.7 | 9.3 | 11.0 | 9.3 | 9.3 | 7.8 | 8.0 |
| Precipitation (mm) | 174 | 133 | 86 | 61 | 132 | 31 | 31 | 56 | 210 | 415 | 469 | 402 |
| Sunny days | 8 | 6 | 8 | 7 | 5 | 9 | 8 | 6 | 1 | 2 | 0 | 0 |
| Rainy days | 23 | 22 | 23 | 23 | 26 | 21 | 23 | 25 | 29 | 29 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Kayankerni is at