Average annual temperature is 26.7 °C
Absolute maximum temperature: 38.0 °C
Absolute minimum temperature: 17.7 °C
Number of sunny days: 79 days
Number of rainy days: 286 days
Look at detailed online map of Diyabeduma
* Weather data for Diyabeduma 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 | 29.9 | 33.1 | 35.3 | 35.5 | 35.3 | 36.4 | 38.0 | 34.6 | 33.4 | 31.5 | 31.6 |
| Average daytime temperature (°C) | 27.6 | 28.4 | 30.5 | 33.0 | 32.5 | 33.9 | 33.6 | 35.8 | 32.6 | 31.3 | 29.7 | 28.5 |
| Average temperature (°C) | 23.7 | 24.3 | 25.9 | 27.4 | 28.0 | 29.1 | 28.8 | 29.5 | 27.7 | 26.2 | 25.2 | 25.0 |
| Average night temperature (°C) | 20.5 | 20.9 | 22.4 | 23.5 | 25.1 | 25.9 | 25.6 | 25.4 | 24.7 | 23.3 | 22.8 | 22.8 |
| Absolute minimum temperature (°C) | 17.7 | 18.3 | 21.5 | 21.8 | 23.3 | 24.6 | 24.3 | 24.6 | 23.5 | 21.9 | 22.1 | 21.6 |
| 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 | 9.0 | 9.9 | 10.3 | 9.2 | 10.8 | 9.9 | 11.0 | 9.5 | 8.6 | 7.4 | 6.9 |
| Precipitation (mm) | 167 | 122 | 121 | 128 | 120 | 14 | 12 | 51 | 70 | 300 | 511 | 380 |
| Sunny days | 8 | 9 | 6 | 7 | 13 | 11 | 11 | 12 | 1 | 1 | 0 | 0 |
| Rainy days | 23 | 19 | 25 | 23 | 18 | 19 | 20 | 19 | 29 | 30 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Diyabeduma is at