Average annual temperature is 13.8 °C
Absolute maximum temperature: 35.2 °C
Absolute minimum temperature: -4.3 °C
Number of sunny days: 162 days
Number of rainy days: 199 days
Number of snow days: 4 days
Look at detailed online map of Kostanjevica na Krasu
* Weather data for Kostanjevica na Krasu Slovenia is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 13.4 | 16.5 | 19.3 | 21.4 | 26.2 | 30.6 | 34.4 | 35.2 | 29.3 | 25.5 | 17.2 | 15.7 |
| Average daytime temperature (°C) | 8.7 | 9.7 | 13.5 | 15.5 | 21.2 | 26.1 | 28.4 | 27.9 | 25.3 | 20.4 | 13.0 | 10.6 |
| Average temperature (°C) | 5.6 | 4.8 | 9.1 | 10.6 | 16.8 | 21.2 | 23.3 | 22.7 | 19.8 | 16.1 | 8.6 | 6.2 |
| Average night temperature (°C) | 3.0 | 1.1 | 5.1 | 5.5 | 12.6 | 16.3 | 18.3 | 17.8 | 15.1 | 12.4 | 4.5 | 2.5 |
| Absolute minimum temperature (°C) | -3.5 | -3.4 | 0.1 | 0.7 | 8.6 | 12.4 | 12.1 | 11.9 | 10.3 | 4.8 | -2.3 | -4.3 |
| 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 | 8.0 |
| Daylight mean duration (h) | 9.1 | 10.4 | 11.9 | 13.5 | 14.9 | 15.7 | 15.3 | 14.1 | 12.5 | 10.9 | 9.5 | 8.7 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 3.9 | 7.0 | 7.9 | 8.9 | 10.1 | 12.7 | 12.0 | 10.9 | 10.5 | 7.2 | 6.3 | 4.5 |
| Precipitation (mm) | 201 | 38 | 155 | 118 | 151 | 73 | 246 | 284 | 196 | 564 | 254 | 134 |
| Sunny days | 11 | 20 | 12 | 13 | 14 | 13 | 10 | 19 | 19 | 13 | 8 | 10 |
| Rainy days | 17 | 7 | 19 | 17 | 17 | 17 | 21 | 12 | 11 | 18 | 22 | 21 |
| Snow days | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Kostanjevica na Krasu during the most sunny months:
Months with the longest average daylight duration in Kostanjevica na Krasu:
The largest precipitation sum in Kostanjevica na Krasu is at