Average annual temperature is 13.0 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -7.1 °C
Number of sunny days: 189 days
Number of rainy days: 172 days
Number of snow days: 4 days
Look at detailed online map of Ustren
* Weather data for Ustren 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) | 14.8 | 16.8 | 17.7 | 17.0 | 22.4 | 29.5 | 34.8 | 35.3 | 31.7 | 26.4 | 21.9 | 16.4 |
| Average daytime temperature (°C) | 8.3 | 8.5 | 12.0 | 13.9 | 18.5 | 24.5 | 30.6 | 30.2 | 25.7 | 21.4 | 14.4 | 9.8 |
| Average temperature (°C) | 4.4 | 2.8 | 7.1 | 9.1 | 14.1 | 19.2 | 24.4 | 24.4 | 20.1 | 15.4 | 9.8 | 4.3 |
| Average night temperature (°C) | 1.1 | -1.8 | 2.3 | 4.2 | 9.9 | 13.6 | 17.4 | 18.9 | 15.1 | 9.7 | 4.6 | -0.2 |
| Absolute minimum temperature (°C) | -3.4 | -7.1 | -3.2 | -1.3 | 4.5 | 10.6 | 12.1 | 15.7 | 10.8 | 5.6 | -6.4 | -6.4 |
| 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) | 4.2 | 8.4 | 8.3 | 8.7 | 10.5 | 13.0 | 13.4 | 11.9 | 10.2 | 9.1 | 6.5 | 5.8 |
| Precipitation (mm) | 121 | 26 | 22 | 136 | 81 | 74 | 12 | 9 | 21 | 13 | 70 | 68 |
| Sunny days | 12 | 21 | 13 | 7 | 6 | 14 | 19 | 21 | 19 | 23 | 14 | 20 |
| Rainy days | 16 | 6 | 18 | 23 | 25 | 16 | 12 | 10 | 11 | 8 | 16 | 11 |
| Snow days | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Ustren during the most sunny months:
The largest precipitation sum in Ustren is at