Average annual temperature is 27.0 °C
Absolute maximum temperature: 39.1 °C
Absolute minimum temperature: 19.0 °C
Number of sunny days: 39 days
Number of rainy days: 326 days
Look at detailed online map of Marappalam
* Weather data for Marappalam 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) | 29.1 | 29.7 | 33.4 | 35.5 | 36.2 | 37.7 | 39.1 | 38.9 | 36.3 | 33.2 | 31.8 | 31.1 |
| Average daytime temperature (°C) | 27.8 | 28.6 | 30.5 | 32.9 | 33.6 | 36.2 | 36.3 | 37.0 | 33.8 | 31.4 | 29.7 | 28.9 |
| Average temperature (°C) | 24.1 | 24.7 | 26.1 | 27.5 | 28.0 | 29.6 | 29.6 | 29.6 | 27.5 | 26.0 | 25.3 | 25.3 |
| Average night temperature (°C) | 21.1 | 21.6 | 22.9 | 23.7 | 24.4 | 25.2 | 25.0 | 24.8 | 24.2 | 23.2 | 23.0 | 22.9 |
| Absolute minimum temperature (°C) | 19.0 | 19.8 | 22.4 | 22.5 | 23.4 | 24.2 | 24.0 | 23.7 | 22.7 | 22.2 | 22.4 | 21.5 |
| 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 | 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 | 9.1 | 9.8 | 10.4 | 9.3 | 10.6 | 9.9 | 11.1 | 9.0 | 8.6 | 7.0 | 7.1 |
| Precipitation (mm) | 220 | 160 | 128 | 91 | 169 | 54 | 43 | 113 | 326 | 556 | 594 | 547 |
| Sunny days | 6 | 9 | 4 | 3 | 5 | 1 | 5 | 5 | 1 | 0 | 0 | 0 |
| Rainy days | 25 | 19 | 27 | 27 | 26 | 29 | 26 | 26 | 29 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Marappalam is at