Average annual temperature is 11.5 °C
Absolute maximum temperature: 34.2 °C
Absolute minimum temperature: -8.3 °C
Number of sunny days: 178 days
Number of rainy days: 182 days
Number of snow days: 5 days
Look at detailed online map of Slashten
* Weather data for Slashten Bulgaria is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 13.0 | 16.8 | 19.6 | 17.1 | 21.8 | 27.5 | 34.2 | 33.1 | 29.8 | 24.7 | 20.3 | 16.5 |
| Average daytime temperature (°C) | 8.1 | 8.9 | 12.3 | 13.7 | 18.5 | 23.1 | 28.8 | 29.3 | 25.2 | 21.4 | 12.7 | 9.2 |
| Average temperature (°C) | 3.6 | 1.7 | 5.9 | 7.7 | 13.1 | 17.5 | 22.1 | 22.3 | 18.2 | 14.0 | 7.4 | 3.7 |
| Average night temperature (°C) | -0.3 | -3.6 | 0.2 | 1.7 | 7.7 | 11.3 | 14.9 | 15.4 | 12.1 | 8.2 | 2.4 | -0.4 |
| Absolute minimum temperature (°C) | -5.0 | -8.3 | -5.3 | -2.3 | 3.2 | 8.2 | 9.9 | 10.3 | 7.9 | 5.2 | -7.9 | -4.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.7 | 8.5 | 8.8 | 10.0 | 10.0 | 12.6 | 13.4 | 12.3 | 10.3 | 9.1 | 6.6 | 6.1 |
| Precipitation (mm) | 90 | 20 | 55 | 114 | 99 | 85 | 19 | 35 | 36 | 33 | 105 | 63 |
| Sunny days | 12 | 20 | 15 | 5 | 6 | 11 | 16 | 18 | 19 | 22 | 13 | 21 |
| Rainy days | 17 | 6 | 16 | 25 | 25 | 19 | 15 | 13 | 11 | 9 | 16 | 10 |
| Snow days | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
The best time to visit Slashten during the most sunny months:
The largest precipitation sum in Slashten is at