Average annual temperature is 21.0 °C
Absolute maximum temperature: 30.7 °C
Absolute minimum temperature: 12.6 °C
Number of sunny days: 31 days
Number of rainy days: 334 days
Look at detailed online map of Seventh Mile Post
* Weather data for Seventh Mile Post 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) | 23.5 | 24.2 | 26.8 | 27.5 | 28.4 | 28.6 | 29.3 | 30.7 | 26.7 | 25.2 | 24.6 | 24.9 |
| Average daytime temperature (°C) | 22.4 | 23.1 | 24.3 | 25.5 | 26.3 | 27.1 | 26.9 | 28.5 | 25.3 | 24.1 | 23.7 | 23.2 |
| Average temperature (°C) | 18.7 | 19.4 | 20.2 | 21.2 | 22.1 | 22.6 | 22.5 | 22.8 | 21.2 | 20.5 | 20.3 | 20.2 |
| Average night temperature (°C) | 15.6 | 15.9 | 16.9 | 17.2 | 18.3 | 18.6 | 18.4 | 17.9 | 18.0 | 17.6 | 17.4 | 17.9 |
| Absolute minimum temperature (°C) | 12.6 | 12.8 | 15.9 | 16.0 | 16.6 | 17.4 | 16.8 | 16.4 | 16.5 | 15.8 | 15.1 | 15.9 |
| 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) | 9.0 | 9.2 | 9.5 | 10.2 | 9.0 | 10.5 | 9.7 | 10.9 | 8.8 | 7.6 | 7.1 | 7.2 |
| Precipitation (mm) | 88 | 122 | 155 | 128 | 159 | 126 | 76 | 150 | 225 | 462 | 552 | 327 |
| Sunny days | 10 | 6 | 1 | 2 | 2 | 0 | 5 | 4 | 0 | 0 | 0 | 1 |
| Rainy days | 21 | 22 | 30 | 28 | 29 | 30 | 26 | 27 | 30 | 31 | 30 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Seventh Mile Post is at