Current sea water temperature:
+72.7°F
| Minimum sea water temperature in October: | 73.9°F |
| Maximum sea water temperature in October: | 61.7°F |
| Average sea water temperature in October: | 67.6°F |
| more information | |
14 days
forecast
forecast
| Portoroz |
monthly
weather
weather
| Portoroz |
Sea water temperature for the last 10 days:
| October 11 | 72.7°F | October 6 | 73.4°F |
| October 10 | 72.9°F | October 5 | 73.0°F |
| October 9 | 73.0°F | October 4 | 73.6°F |
| October 8 | 72.7°F | October 3 | 73.4°F |
| October 7 | 72.9°F | October 2 | 73.8°F |
Monthly sea water temperature, °F
When is the warmest sea in Portoroz?
Based on the data about daily sea water temperature for the last three years the warmest sea in Portoroz was noticed in August, July and September.
Monthly Sea Temperatures in Portoroz, °F
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 81.7°F. The highest and lowest sea temperatures during the month were 84.6°F and 79.7°F.
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 in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 77.6°F. The highest and lowest sea temperatures during the month were 81.5°F and 74.3°F.
current
weather
weather
| Portoroz |
weather in
October
October
| Portoroz |
Best time for vacation in Portoroz
Portoroz on a weather map
Places in Slovenia:
Name
°F
24 Hours Forecast
Portoroz
Local time: 18:40
October 11, sunday
2100

59°F
W
2 mph
2 mph
October 12, monday
0000

55°F
W
4 mph
4 mph
0300

55°F
W
4 mph
4 mph
0600

55°F
W
3 mph
3 mph
0900

57°F
W
11 mph
11 mph
1200

63°F
W
12 mph
12 mph
1500

64°F
SW
11 mph
11 mph
1800

55°F
W
7 mph
7 mph


























