Average annual temperature is 26.8 °C
Absolute maximum temperature: 39.1 °C
Absolute minimum temperature: 16.9 °C
Number of sunny days: 65 days
Number of rainy days: 300 days
Look at detailed online map of Yatiyallathota
* Weather data for Yatiyallathota 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) | 31.4 | 31.7 | 36.9 | 37.7 | 38.4 | 37.6 | 37.4 | 39.1 | 33.8 | 31.2 | 30.2 | 29.9 |
| Average daytime temperature (°C) | 29.7 | 30.0 | 31.8 | 33.6 | 32.7 | 35.9 | 34.4 | 36.6 | 31.6 | 29.8 | 28.8 | 28.4 |
| Average temperature (°C) | 25.1 | 25.4 | 26.6 | 27.4 | 27.5 | 29.3 | 28.5 | 29.6 | 26.8 | 25.3 | 24.9 | 25.2 |
| Average night temperature (°C) | 21.1 | 21.6 | 22.9 | 23.2 | 23.8 | 24.7 | 24.2 | 24.5 | 23.8 | 22.6 | 22.2 | 22.9 |
| Absolute minimum temperature (°C) | 16.9 | 18.9 | 21.8 | 21.3 | 22.6 | 23.0 | 22.5 | 22.9 | 21.8 | 21.7 | 20.4 | 21.4 |
| 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 | 10.0 | 9.9 | 9.9 | 9.3 | 10.8 | 10.0 | 11.0 | 9.3 | 8.3 | 7.7 | 8.2 |
| Precipitation (mm) | 59 | 104 | 86 | 163 | 180 | 63 | 50 | 21 | 76 | 314 | 441 | 266 |
| Sunny days | 16 | 12 | 2 | 1 | 7 | 2 | 6 | 13 | 4 | 0 | 0 | 2 |
| Rainy days | 15 | 16 | 29 | 29 | 24 | 28 | 25 | 18 | 26 | 31 | 30 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Yatiyallathota is at