Average annual temperature is 27.5 °C
Absolute maximum temperature: 38.1 °C
Absolute minimum temperature: 17.7 °C
Number of sunny days: 111 days
Number of rainy days: 254 days
Look at detailed online map of Periyamadhu West
* Weather data for Periyamadhu 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) | 30.0 | 32.4 | 36.2 | 38.1 | 35.8 | 37.1 | 37.5 | 38.1 | 35.0 | 34.8 | 31.4 | 30.8 |
| Average daytime temperature (°C) | 28.3 | 29.9 | 33.3 | 35.6 | 32.5 | 34.1 | 34.3 | 35.7 | 33.0 | 31.8 | 29.7 | 28.9 |
| Average temperature (°C) | 23.9 | 24.9 | 27.5 | 28.8 | 28.6 | 29.8 | 29.5 | 29.9 | 28.7 | 26.9 | 25.6 | 25.6 |
| Average night temperature (°C) | 20.5 | 20.7 | 23.2 | 24.3 | 25.6 | 26.9 | 26.4 | 25.9 | 25.7 | 23.9 | 23.2 | 23.4 |
| Absolute minimum temperature (°C) | 17.7 | 18.0 | 21.2 | 22.8 | 23.7 | 25.8 | 25.5 | 25.1 | 24.3 | 23.0 | 22.7 | 22.9 |
| 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) | 9.2 | 10.3 | 11.0 | 10.6 | 9.2 | 10.5 | 9.9 | 11.1 | 10.4 | 9.5 | 7.0 | 8.1 |
| Precipitation (mm) | 73 | 81 | 51 | 115 | 105 | 35 | 26 | 19 | 59 | 189 | 429 | 231 |
| Sunny days | 17 | 16 | 9 | 7 | 10 | 14 | 13 | 21 | 2 | 1 | 0 | 1 |
| Rainy days | 14 | 12 | 22 | 23 | 21 | 16 | 18 | 10 | 28 | 30 | 30 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Periyamadhu West is at