Average annual temperature is 25.6 °C
Absolute maximum temperature: 33.2 °C
Absolute minimum temperature: 18.4 °C
Number of sunny days: 10 days
Number of rainy days: 355 days
Look at detailed online map of Ratnapura
* Weather data for Ratnapura 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) | 29.7 | 31.3 | 32.2 | 33.2 | 31.3 | 29.9 | 29.9 | 30.5 | 29.9 | 30.4 | 30.6 | 30.8 |
| Average daytime temperature (°C) | 28.8 | 29.4 | 30.3 | 31.3 | 29.6 | 28.8 | 28.6 | 29.5 | 28.2 | 28.6 | 29.0 | 28.9 |
| Average temperature (°C) | 24.6 | 25.2 | 25.9 | 26.6 | 26.3 | 25.9 | 25.7 | 26.2 | 25.1 | 25.2 | 25.2 | 25.3 |
| Average night temperature (°C) | 21.1 | 21.7 | 22.5 | 23.2 | 24.1 | 24.0 | 23.5 | 23.6 | 23.2 | 23.0 | 22.7 | 22.6 |
| Absolute minimum temperature (°C) | 18.4 | 20.0 | 21.3 | 22.4 | 23.2 | 22.9 | 22.8 | 22.9 | 22.5 | 22.1 | 21.7 | 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) | 11.8 | 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) | 9.5 | 9.5 | 10.0 | 9.7 | 7.1 | 7.2 | 8.2 | 10.5 | 6.0 | 6.2 | 6.7 | 7.4 |
| Precipitation (mm) | 177 | 228 | 204 | 303 | 388 | 435 | 416 | 216 | 883 | 758 | 777 | 567 |
| Sunny days | 5 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Rainy days | 26 | 23 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Ratnapura during the most sunny months:
The largest precipitation sum in Ratnapura is at