Average sea water temperature in June:
+73.7°F
| Minimum sea water temperature in June: | 83.5°F |
| Maximum sea water temperature in June: | 63.9°F |
Daily sea water temperature in June, °F
Show year:
2026
2025
2024
The average sea water temperature in June of 2026 was 76.2°F. The highest and lowest sea temperatures during the month were 83.5°F and 71.2°F.
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| Portoroz |
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Monthly sea water temperature in Portoroz, °F
Which Slovenia resorts have warmest sea in June?
| Place name | June 2026 | June 2025 |
|---|---|---|
| Portoroz | 76.2°F | 75.5°F |
| Piran | 76.2°F | 75.5°F |
| Strunjan | 76.2°F | 75.4°F |
| Isola | 76.1°F | 75.3°F |
| Koper | 76.1°F | 75.4°F |
| Bohinjsko Jezero | 74.4°F | 72.7°F |
| Cerkno | 74.4°F | 72.9°F |
| Dolenjske Toplice | 73.2°F | 71.1°F |
Best time for vacation in Portoroz
Portoroz on a weather map
Places in Slovenia:
Name
°F
24 Hours Forecast
Portoroz
Local time: 11:38
September 01, tuesday
1200

84°F
SW
6 mph
6 mph
1500

88°F
S
4 mph
4 mph
1800

84°F
S
4 mph
4 mph
2100

73°F
W
4 mph
4 mph
September 02, wednesday
0000

70°F
W
5 mph
5 mph
0300

68°F
W
5 mph
5 mph
0600

68°F
W
6 mph
6 mph
0900

75°F
W
4 mph
4 mph



























