Average sea water temperature in October:
+66.7°F
| Minimum sea water temperature in October: | 72.1°F |
| Maximum sea water temperature in October: | 60.8°F |
Daily sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 65.6°F. The highest and lowest sea temperatures during the month were 71.4°F and 62.2°F.
Monthly sea water temperature in Cerkno, °F
Which Slovenia resorts have warmest sea in October?
| Place name | October 2025 | October 2024 |
|---|---|---|
| Portoroz | 67.1°F | 67.1°F |
| Piran | 67.1°F | 67.1°F |
| Strunjan | 67.0°F | 67.0°F |
| Isola | 66.9°F | 67.0°F |
| Koper | 66.9°F | 66.8°F |
| Cerkno | 65.6°F | 65.6°F |
| Bohinjsko Jezero | 65.4°F | 65.5°F |
| Dolenjske Toplice | 65.4°F | 65.2°F |
Best time for vacation in Cerkno
Cerkno on a weather map
Places in Slovenia:
Name
°F
24 Hours Forecast
Cerkno
Local time: 05:01
December 05, friday
0600

43°F
W
5 mph
5 mph
0900

45°F
SW
5 mph
5 mph
1200

48°F
W
5 mph
5 mph
1500

46°F
SW
5 mph
5 mph
1800

43°F
SW
6 mph
6 mph
2100

43°F
SW
6 mph
6 mph
December 06, saturday
0000

41°F
SW
6 mph
6 mph
0300

43°F
SW
6 mph
6 mph



























