Average annual temperature is 10.9 °C
Absolute maximum temperature: 33.4 °C
Absolute minimum temperature: -9.8 °C
Number of sunny days: 161 days
Number of rainy days: 189 days
Number of snow days: 15 days
Look at detailed online map of Kostenets
* Weather data for Kostenets 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) | 13.2 | 15.9 | 18.1 | 17.1 | 19.4 | 25.5 | 33.4 | 31.5 | 27.4 | 24.7 | 18.4 | 16.8 |
| Average daytime temperature (°C) | 5.8 | 6.5 | 9.8 | 11.4 | 15.1 | 20.7 | 27.3 | 26.3 | 22.2 | 19.2 | 10.6 | 7.8 |
| Average temperature (°C) | 2.8 | 2.0 | 5.2 | 6.9 | 11.4 | 16.6 | 22.1 | 21.1 | 17.6 | 13.9 | 6.5 | 3.5 |
| Average night temperature (°C) | 0.0 | -1.7 | 0.9 | 2.8 | 7.9 | 12.4 | 16.5 | 16.1 | 13.3 | 8.7 | 2.6 | -0.4 |
| Absolute minimum temperature (°C) | -5.6 | -9.8 | -3.8 | -3.5 | 4.2 | 8.9 | 11.4 | 10.6 | 9.9 | 2.4 | -5.6 | -7.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.9 | 12.5 | 11.1 | 9.8 | 9.1 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.0 | 7.8 | 8.2 | 9.5 | 8.7 | 11.8 | 13.4 | 11.7 | 10.0 | 9.2 | 6.0 | 5.8 |
| Precipitation (mm) | 79 | 34 | 57 | 137 | 128 | 142 | 28 | 61 | 43 | 23 | 141 | 71 |
| Sunny days | 10 | 15 | 13 | 6 | 2 | 10 | 20 | 14 | 16 | 24 | 11 | 20 |
| Rainy days | 16 | 6 | 17 | 24 | 29 | 20 | 11 | 17 | 14 | 7 | 17 | 11 |
| Snow days | 5 | 7 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 |
The best time to visit Kostenets during the most sunny months:
The largest precipitation sum in Kostenets is at