Average annual temperature is 27.5 °C
Absolute maximum temperature: 39.1 °C
Absolute minimum temperature: 18.0 °C
Number of sunny days: 100 days
Number of rainy days: 265 days
Look at detailed online map of Koyilkunchukkulam
* Weather data for Koyilkunchukkulam 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) | 29.2 | 31.6 | 35.9 | 38.4 | 37.1 | 37.7 | 38.1 | 39.1 | 35.7 | 35.2 | 31.1 | 30.7 |
| Average daytime temperature (°C) | 28.0 | 29.4 | 32.9 | 35.7 | 32.8 | 34.7 | 35.1 | 36.5 | 33.8 | 31.7 | 29.4 | 28.6 |
| Average temperature (°C) | 24.0 | 24.8 | 27.2 | 28.8 | 28.5 | 29.9 | 29.8 | 29.9 | 28.8 | 26.8 | 25.5 | 25.6 |
| Average night temperature (°C) | 20.7 | 20.9 | 23.2 | 24.2 | 25.4 | 26.6 | 26.3 | 25.8 | 25.5 | 23.8 | 23.1 | 23.5 |
| Absolute minimum temperature (°C) | 18.0 | 18.3 | 22.2 | 22.7 | 23.3 | 25.6 | 25.5 | 24.9 | 24.6 | 22.9 | 22.6 | 23.1 |
| 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) | 9.1 | 10.1 | 10.9 | 10.4 | 8.9 | 10.5 | 9.7 | 10.9 | 10.1 | 9.2 | 7.1 | 7.7 |
| Precipitation (mm) | 81 | 80 | 48 | 114 | 95 | 38 | 26 | 46 | 46 | 253 | 502 | 248 |
| Sunny days | 16 | 14 | 10 | 7 | 10 | 10 | 13 | 15 | 2 | 1 | 1 | 1 |
| Rainy days | 15 | 14 | 21 | 23 | 21 | 20 | 18 | 16 | 28 | 30 | 29 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Koyilkunchukkulam is at