Average annual temperature is 26.7 °C
Absolute maximum temperature: 38.8 °C
Absolute minimum temperature: 20.4 °C
Number of sunny days: 38 days
Number of rainy days: 327 days
Look at detailed online map of Lewalagama
* Weather data for Lewalagama 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 | 30.5 | 32.4 | 34.6 | 35.6 | 36.9 | 37.9 | 38.8 | 35.7 | 32.0 | 30.8 | 31.4 |
| Average daytime temperature (°C) | 27.6 | 28.1 | 29.7 | 31.7 | 32.5 | 35.1 | 35.2 | 37.2 | 33.2 | 30.4 | 29.4 | 28.5 |
| Average temperature (°C) | 24.2 | 24.7 | 25.8 | 27.2 | 27.8 | 29.0 | 28.7 | 29.8 | 27.6 | 25.7 | 25.2 | 25.0 |
| Average night temperature (°C) | 21.8 | 22.4 | 23.1 | 24.0 | 24.7 | 25.1 | 24.4 | 24.9 | 24.4 | 23.1 | 22.9 | 23.0 |
| Absolute minimum temperature (°C) | 20.4 | 20.9 | 21.9 | 22.9 | 23.6 | 24.0 | 23.2 | 23.8 | 23.2 | 22.3 | 22.2 | 22.1 |
| 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) | 11.8 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 | 12.5 | 12.3 | 12.2 | 12.0 | 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) | 8.8 | 8.9 | 9.5 | 10.1 | 9.4 | 10.5 | 9.5 | 10.8 | 9.4 | 8.3 | 7.3 | 6.8 |
| Precipitation (mm) | 149 | 164 | 147 | 111 | 136 | 101 | 56 | 62 | 194 | 431 | 514 | 576 |
| Sunny days | 7 | 5 | 4 | 4 | 8 | 1 | 3 | 5 | 1 | 0 | 0 | 0 |
| Rainy days | 24 | 23 | 27 | 26 | 23 | 29 | 28 | 26 | 29 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Lewalagama is at