Average annual temperature is 24.5 °C
Absolute maximum temperature: 31.7 °C
Absolute minimum temperature: 18.9 °C
Number of sunny days: 20 days
Number of rainy days: 345 days
Look at detailed online map of Ranathungoda
* Weather data for Ranathungoda 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 | 29.9 | 30.5 | 31.7 | 30.3 | 29.0 | 28.5 | 29.9 | 27.9 | 28.7 | 28.8 | 29.3 |
| Average daytime temperature (°C) | 27.7 | 28.3 | 28.8 | 29.6 | 28.0 | 27.7 | 27.0 | 28.5 | 26.3 | 26.4 | 27.3 | 27.2 |
| Average temperature (°C) | 23.6 | 24.0 | 24.8 | 25.5 | 25.4 | 25.1 | 24.6 | 25.2 | 23.8 | 23.9 | 24.1 | 24.2 |
| Average night temperature (°C) | 20.3 | 20.7 | 21.8 | 22.6 | 23.6 | 23.4 | 22.9 | 23.1 | 22.3 | 22.2 | 22.0 | 22.1 |
| Absolute minimum temperature (°C) | 18.9 | 19.0 | 20.5 | 21.7 | 22.4 | 22.0 | 22.0 | 21.7 | 21.7 | 21.4 | 21.3 | 21.1 |
| 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 | 12.4 | 12.3 | 12.2 | 12.0 | 11.8 | 11.8 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.4 | 9.5 | 9.7 | 9.8 | 8.5 | 10.1 | 8.8 | 10.6 | 7.2 | 5.9 | 6.6 | 7.2 |
| Precipitation (mm) | 87 | 164 | 142 | 145 | 137 | 116 | 170 | 89 | 381 | 483 | 591 | 337 |
| Sunny days | 7 | 3 | 1 | 0 | 1 | 0 | 1 | 5 | 0 | 0 | 0 | 2 |
| Rainy days | 24 | 25 | 30 | 30 | 30 | 30 | 30 | 26 | 30 | 31 | 30 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ranathungoda is at