Average annual temperature is 27.1 °C
Absolute maximum temperature: 38.5 °C
Absolute minimum temperature: 20.1 °C
Number of sunny days: 76 days
Number of rainy days: 289 days
Look at detailed online map of Adampana
* Weather data for Adampana 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) | 29.3 | 30.4 | 34.5 | 36.8 | 37.2 | 37.3 | 38.4 | 38.5 | 36.5 | 34.4 | 31.3 | 32.5 |
| Average daytime temperature (°C) | 27.6 | 28.7 | 31.3 | 33.6 | 34.1 | 35.5 | 35.3 | 36.9 | 34.1 | 32.1 | 29.4 | 28.8 |
| Average temperature (°C) | 24.5 | 25.0 | 26.5 | 27.7 | 28.3 | 29.8 | 29.4 | 29.2 | 28.0 | 26.3 | 25.3 | 25.4 |
| Average night temperature (°C) | 22.0 | 22.0 | 23.1 | 23.7 | 24.9 | 26.1 | 26.0 | 25.1 | 24.7 | 23.2 | 22.8 | 23.2 |
| Absolute minimum temperature (°C) | 20.2 | 20.1 | 22.2 | 22.0 | 23.2 | 24.7 | 24.8 | 24.0 | 23.3 | 22.3 | 22.4 | 22.4 |
| 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) | 9.3 | 10.2 | 10.9 | 10.6 | 9.3 | 10.7 | 9.6 | 10.8 | 9.8 | 9.8 | 8.0 | 8.2 |
| Precipitation (mm) | 138 | 90 | 65 | 88 | 109 | 23 | 56 | 93 | 133 | 455 | 567 | 375 |
| Sunny days | 12 | 14 | 6 | 8 | 6 | 7 | 10 | 8 | 3 | 2 | 0 | 0 |
| Rainy days | 19 | 14 | 25 | 22 | 25 | 23 | 21 | 23 | 27 | 29 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Adampana is at