Average annual temperature is 27.3 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: 19.4 °C
Number of sunny days: 85 days
Number of rainy days: 280 days
Look at detailed online map of Ralmaduwa
* Weather data for Ralmaduwa 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) | 29.8 | 32.1 | 34.4 | 34.7 | 33.3 | 33.2 | 34.3 | 35.3 | 32.9 | 32.3 | 31.4 | 30.3 |
| Average daytime temperature (°C) | 28.6 | 29.9 | 32.1 | 32.6 | 31.1 | 31.8 | 31.7 | 33.0 | 31.3 | 30.3 | 29.2 | 28.9 |
| Average temperature (°C) | 24.7 | 25.4 | 27.4 | 28.0 | 28.5 | 29.1 | 28.6 | 28.9 | 28.2 | 26.7 | 25.7 | 25.9 |
| Average night temperature (°C) | 21.5 | 21.8 | 23.8 | 24.7 | 26.2 | 27.2 | 26.5 | 26.2 | 25.7 | 24.1 | 23.4 | 23.7 |
| Absolute minimum temperature (°C) | 19.4 | 19.7 | 22.3 | 23.5 | 23.5 | 25.6 | 25.8 | 25.1 | 24.1 | 22.5 | 22.6 | 23.2 |
| 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) | 9.4 | 9.9 | 10.9 | 10.6 | 9.3 | 10.8 | 10.0 | 11.1 | 10.5 | 9.4 | 7.8 | 8.2 |
| Precipitation (mm) | 73 | 97 | 62 | 109 | 97 | 16 | 20 | 7 | 54 | 188 | 420 | 294 |
| Sunny days | 18 | 12 | 2 | 1 | 7 | 8 | 15 | 22 | 0 | 0 | 0 | 0 |
| Rainy days | 13 | 16 | 29 | 29 | 24 | 22 | 16 | 9 | 30 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ralmaduwa is at