Average sea water temperature in January:
+51.3°F
| Minimum sea water temperature in January: | 55.4°F |
| Maximum sea water temperature in January: | 46.9°F |
Daily sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 51.6°F. The highest and lowest sea temperatures during the month were 53.2°F and 50.4°F.
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| Portoroz |
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| Portoroz |
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| Portoroz |
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| Portoroz |
Monthly sea water temperature in Portoroz, °F
Which Slovenia resorts have warmest sea in January?
| Place name | January 2025 | January 2024 |
|---|---|---|
| Dolenjske Toplice | 53.3°F | 54.6°F |
| Portoroz | 51.6°F | 52.8°F |
| Piran | 51.6°F | 52.8°F |
| Strunjan | 51.1°F | 52.4°F |
| Isola | 50.6°F | 52.1°F |
| Koper | 50.2°F | 51.8°F |
| Cerkno | 49.3°F | 50.3°F |
| Bohinjsko Jezero | 49.3°F | 50.2°F |
Best time for vacation in Portoroz
Portoroz on a weather map
Places in Slovenia:
Name
°F
24 Hours Forecast
Portoroz
Local time: 10:33
January 13, tuesday
1200
41°F
NW
2 mph
2 mph
1500
41°F
NW
2 mph
2 mph
1800
41°F
NW
1 mph
1 mph
2100
37°F
NW
1 mph
1 mph
January 14, wednesday
0000
37°F
N
1 mph
1 mph
0300
37°F
NE
1 mph
1 mph
0600
37°F
E
1 mph
1 mph
0900
39°F
N
1 mph
1 mph
