Current Sea Water Temperature:
+82.2°F
| Maximum Sea Water Temperature in August: | 87.0°F |
| Minimum Sea Water Temperature in August: | 75.6°F |
| Average water temperature in August: | 81.0°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| August 19 | 82.2°F | August 14 | 82.8°F |
| August 18 | 82.8°F | August 13 | 84.0°F |
| August 17 | 82.6°F | August 12 | 84.6°F |
| August 16 | 81.6°F | August 11 | 84.0°F |
| August 15 | 81.4°F | August 10 | 84.0°F |
When is the Warmest Sea for Cerkno?
According to our data for the last three years for Cerkno the highest average sea water temperature was in August, July and September.
Average Water Temperature by Month, °F
Sea Water Temperature in August
The average sea surface temperature in August 2026 for Cerkno was 83.7°F. The maximum and minimum values were 81.4°F and 87.0°F respectively.
Sea Water Temperature in July
The average sea surface temperature in July 2026 for Cerkno was 81.5°F. The maximum and minimum values were 78.0°F and 85.4°F respectively.
Sea Water Temperature in September
The average sea surface temperature in September 2025 for Cerkno was 76.2°F. The maximum and minimum values were 73.4°F and 78.4°F respectively.
Slovenia Resorts:
NAME
F°
| Bled |  |
+78 |
| Bohinjsko Jezero | |
+78 |
| Bovec |  |
+74 |
| Cerkno | |
+78 |
| Dolenjske Toplice | |
+86 |
| Isola |  |
+90 |
| Koper | |
+90 |
| Ljubljana |  |
+88 |
| Maribor | |
+90 |
| Moravske Toplice | |
+88 |
| Piran | |
+90 |
| Portoroz | |
+90 |
| Rogaska Slatina | |
+86 |
| Smarjeske Toplice | |
+86 |
| Strunjan | |
+90 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Cerkno
Local time: 14:39
19 aug, wednesday
| 1500 |  |
78°F | NE 6 mph |
| 1800 |  |
74°F | NE 5 mph |
| 2100 |  |
64°F | SE 4 mph |
20 aug, thursday
| 0000 |  |
62°F | SE 3 mph |
| 0300 | |
64°F | SE 2 mph |
| 0600 | |
60°F | SE 3 mph |
| 0900 | |
70°F | NE 3 mph |
| 1200 | |
72°F | NE 5 mph |