Average sea water temperature in May:
+63.8°F
| Minimum sea water temperature in May: | 71.6°F |
| Maximum sea water temperature in May: | 57.6°F |
Daily sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 61.3°F. The highest and lowest sea temperatures during the month were 64.6°F and 58.1°F.
Monthly sea water temperature in Cerkno, °F
Which Slovenia resorts have warmest sea in May?
| Place name | May 2026 | May 2025 |
|---|---|---|
| Portoroz | 62.5°F | 65.3°F |
| Piran | 62.5°F | 65.3°F |
| Strunjan | 62.3°F | 65.2°F |
| Isola | 62.1°F | 65.1°F |
| Koper | 62.0°F | 64.9°F |
| Cerkno | 61.3°F | 63.3°F |
| Bohinjsko Jezero | 61.3°F | 63.2°F |
| Dolenjske Toplice | 60.8°F | 62.3°F |
Best time for vacation in Cerkno
Cerkno on a weather map
Places in Slovenia:
Name
°F
24 Hours Forecast
Cerkno
Local time: 03:31
May 18, monday
0600
39°F
S
2 mph
2 mph
0900
50°F
NE
2 mph
2 mph
1200
54°F
NE
4 mph
4 mph
1500
54°F
NE
4 mph
4 mph
1800
52°F
NE
5 mph
5 mph
2100
45°F
E
2 mph
2 mph
May 19, tuesday
0000
43°F
SE
2 mph
2 mph
0300
43°F
S
2 mph
2 mph
