Average annual temperature is 26.6 °C
Absolute maximum temperature: 37.5 °C
Absolute minimum temperature: 17.7 °C
Number of sunny days: 76 days
Number of rainy days: 289 days
Look at detailed online map of Mayilagaswewa
* Weather data for Mayilagaswewa 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) | 28.9 | 30.9 | 34.1 | 35.4 | 35.0 | 34.5 | 36.8 | 37.5 | 34.6 | 33.6 | 31.6 | 30.9 |
| Average daytime temperature (°C) | 28.0 | 29.5 | 31.7 | 33.6 | 32.0 | 33.4 | 33.5 | 35.3 | 32.8 | 31.5 | 29.7 | 28.7 |
| Average temperature (°C) | 23.7 | 24.6 | 26.3 | 27.4 | 27.6 | 28.6 | 28.5 | 28.8 | 27.5 | 25.9 | 25.0 | 25.0 |
| Average night temperature (°C) | 20.7 | 21.1 | 22.6 | 23.4 | 24.7 | 25.5 | 25.3 | 24.8 | 24.3 | 23.1 | 22.5 | 22.7 |
| Absolute minimum temperature (°C) | 17.7 | 19.4 | 21.7 | 22.0 | 23.0 | 24.3 | 24.5 | 23.8 | 23.6 | 22.0 | 21.8 | 22.2 |
| 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 | 9.7 | 8.9 | 7.2 | 7.7 |
| Precipitation (mm) | 91 | 111 | 70 | 148 | 138 | 23 | 30 | 100 | 69 | 376 | 570 | 318 |
| Sunny days | 15 | 14 | 6 | 7 | 5 | 6 | 11 | 12 | 0 | 0 | 0 | 0 |
| Rainy days | 16 | 14 | 25 | 23 | 26 | 24 | 20 | 19 | 30 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Mayilagaswewa is at