Average annual temperature is 26.9 °C
Absolute maximum temperature: 38.0 °C
Absolute minimum temperature: 19.3 °C
Number of sunny days: 83 days
Number of rainy days: 282 days
Look at detailed online map of Pattewa
* Weather data for Pattewa 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) | 29.2 | 31.1 | 35.6 | 36.8 | 36.1 | 35.9 | 37.7 | 38.0 | 35.9 | 34.2 | 31.4 | 32.0 |
| Average daytime temperature (°C) | 27.8 | 29.3 | 32.1 | 34.4 | 33.3 | 34.6 | 34.8 | 36.4 | 33.8 | 32.3 | 29.5 | 28.8 |
| Average temperature (°C) | 24.0 | 24.8 | 26.5 | 27.8 | 28.0 | 29.3 | 29.2 | 29.1 | 27.9 | 26.2 | 25.1 | 25.2 |
| Average night temperature (°C) | 21.3 | 21.8 | 23.1 | 23.9 | 25.0 | 25.8 | 25.7 | 25.0 | 24.7 | 23.2 | 22.7 | 23.0 |
| Absolute minimum temperature (°C) | 19.3 | 20.1 | 22.3 | 22.4 | 23.4 | 24.8 | 24.9 | 23.7 | 23.4 | 22.5 | 22.1 | 22.6 |
| 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) | 9.3 | 10.0 | 10.6 | 10.5 | 9.0 | 10.7 | 9.5 | 10.7 | 9.8 | 9.0 | 6.9 | 7.4 |
| Precipitation (mm) | 121 | 95 | 61 | 121 | 132 | 17 | 18 | 109 | 68 | 466 | 501 | 314 |
| Sunny days | 12 | 12 | 6 | 9 | 8 | 12 | 9 | 14 | 1 | 0 | 0 | 0 |
| Rainy days | 19 | 16 | 25 | 21 | 23 | 18 | 22 | 17 | 29 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Pattewa is at