Average sea water temperature in July:
+78.5°F
| Minimum sea water temperature in July: | 85.5°F |
| Maximum sea water temperature in July: | 72.3°F |
Daily sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 80.0°F. The highest and lowest sea temperatures during the month were 84.0°F and 77.7°F.
sea water
temperature
temperature
| Portoroz |
monthly
weather
weather
| Portoroz |
current
weather
weather
| Portoroz |
14 days
forecast
forecast
| Portoroz |
Monthly sea water temperature in Portoroz, °F
Which Slovenia resorts have warmest sea in July?
| Place name | July 2026 | July 2025 |
|---|---|---|
| Portoroz | 80.0°F | 79.0°F |
| Piran | 80.0°F | 79.0°F |
| Strunjan | 79.8°F | 78.9°F |
| Isola | 79.6°F | 78.8°F |
| Koper | 79.5°F | 78.7°F |
| Cerkno | 78.4°F | 77.4°F |
| Bohinjsko Jezero | 78.4°F | 77.3°F |
| Dolenjske Toplice | 77.9°F | 76.3°F |
Best time for vacation in Portoroz
Portoroz on a weather map
Places in Slovenia:
Name
°F
24 Hours Forecast
Portoroz
Local time: 11:05
November 01, sunday
1200

54°F
SW
16 mph
16 mph
1500

50°F
SW
14 mph
14 mph
1800

50°F
SW
14 mph
14 mph
2100

46°F
SW
14 mph
14 mph
November 02, monday
0000

46°F
SW
14 mph
14 mph
0300

48°F
SW
18 mph
18 mph
0600

48°F
SW
15 mph
15 mph
0900

50°F
SW
16 mph
16 mph



























