Average sea water temperature in June:
+73.3°F
| Minimum sea water temperature in June: | 81.3°F |
| Maximum sea water temperature in June: | 62.2°F |
Daily sea water temperature in June, °F
Show year:
2025
2024
2023
The average sea water temperature in June of 2025 was 75.4°F. The highest and lowest sea temperatures during the month were 81.1°F and 71.6°F.
Monthly sea water temperature in Koper, °F
Which Slovenia resorts have warmest sea in June?
| Place name | June 2025 | June 2024 |
|---|---|---|
| Portoroz | 75.5°F | 73.7°F |
| Piran | 75.5°F | 73.7°F |
| Strunjan | 75.4°F | 73.5°F |
| Koper | 75.4°F | 73.1°F |
| Isola | 75.3°F | 73.3°F |
| Cerkno | 72.9°F | 71.1°F |
| Bohinjsko Jezero | 72.7°F | 71.0°F |
| Dolenjske Toplice | 71.1°F | 71.7°F |
Best time for vacation in Koper
Koper on a weather map
Places in Slovenia:
Name
°F
24 Hours Forecast
Koper
Local time: 01:16
December 21, sunday
0300
41°F
W
4 mph
4 mph
0600
41°F
W
4 mph
4 mph
0900
41°F
W
4 mph
4 mph
1200
54°F
W
2 mph
2 mph
1500
54°F
SW
2 mph
2 mph
1800
48°F
W
3 mph
3 mph
2100
45°F
W
4 mph
4 mph
December 22, monday
0000
45°F
W
3 mph
3 mph
