Average annual temperature is 24.8 °C
Absolute maximum temperature: 33.6 °C
Absolute minimum temperature: 17.5 °C
Number of sunny days: 17 days
Number of rainy days: 348 days
Look at detailed online map of Nahalwathura
* Weather data for Nahalwathura 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) | 29.4 | 30.9 | 32.2 | 33.6 | 31.1 | 29.6 | 29.1 | 30.0 | 29.7 | 29.9 | 30.0 | 30.0 |
| Average daytime temperature (°C) | 28.2 | 29.0 | 30.7 | 31.4 | 28.9 | 28.0 | 27.8 | 28.9 | 27.6 | 28.2 | 28.6 | 28.4 |
| Average temperature (°C) | 23.5 | 24.3 | 25.4 | 25.9 | 25.4 | 24.9 | 24.8 | 25.3 | 24.3 | 24.5 | 24.5 | 24.6 |
| Average night temperature (°C) | 19.8 | 20.6 | 21.5 | 22.1 | 23.1 | 22.9 | 22.7 | 22.7 | 22.3 | 22.2 | 21.9 | 21.8 |
| Absolute minimum temperature (°C) | 17.5 | 19.7 | 20.2 | 20.7 | 21.8 | 21.8 | 21.9 | 21.9 | 20.8 | 20.6 | 20.9 | 20.7 |
| 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) | 9.6 | 9.4 | 10.0 | 9.8 | 7.7 | 8.4 | 8.3 | 10.6 | 6.1 | 6.3 | 6.9 | 7.2 |
| Precipitation (mm) | 91 | 137 | 101 | 144 | 221 | 243 | 289 | 158 | 518 | 565 | 547 | 412 |
| Sunny days | 7 | 5 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Rainy days | 24 | 23 | 27 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Nahalwathura during the most sunny months:
The largest precipitation sum in Nahalwathura is at