Average annual temperature is 26.8 °C
Absolute maximum temperature: 38.2 °C
Absolute minimum temperature: 18.5 °C
Number of sunny days: 77 days
Number of rainy days: 288 days
Look at detailed online map of Diwulgaswewa
* Weather data for Diwulgaswewa 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 | 31.5 | 35.0 | 36.9 | 35.6 | 35.3 | 38.0 | 38.2 | 35.3 | 33.5 | 31.7 | 31.0 |
| Average daytime temperature (°C) | 28.0 | 29.6 | 32.0 | 34.2 | 32.4 | 34.0 | 34.1 | 35.8 | 33.0 | 31.6 | 29.7 | 28.6 |
| Average temperature (°C) | 23.9 | 24.7 | 26.5 | 27.7 | 27.8 | 28.9 | 28.8 | 29.0 | 27.6 | 26.1 | 25.1 | 25.1 |
| Average night temperature (°C) | 21.0 | 21.3 | 22.8 | 23.6 | 24.8 | 25.6 | 25.4 | 24.9 | 24.4 | 23.2 | 22.7 | 22.9 |
| Absolute minimum temperature (°C) | 18.5 | 19.6 | 21.9 | 22.1 | 23.2 | 24.4 | 24.5 | 23.4 | 23.6 | 22.2 | 21.9 | 22.3 |
| 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 | 12.6 | 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 | 10.1 | 10.7 | 10.4 | 8.8 | 10.5 | 9.7 | 10.8 | 9.8 | 8.7 | 7.1 | 7.7 |
| Precipitation (mm) | 76 | 115 | 60 | 140 | 103 | 19 | 33 | 86 | 79 | 345 | 532 | 259 |
| Sunny days | 16 | 15 | 4 | 8 | 6 | 5 | 8 | 14 | 1 | 0 | 0 | 0 |
| Rainy days | 15 | 13 | 27 | 22 | 25 | 25 | 23 | 17 | 29 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Diwulgaswewa is at