Average sea water temperature in January:
+50.6°F
| Minimum sea water temperature in January: | 54.7°F |
| Maximum sea water temperature in January: | 46.8°F |
Daily sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 50.2°F. The highest and lowest sea temperatures during the month were 51.4°F and 48.9°F.
Monthly sea water temperature in Koper, °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 Koper
Koper on a weather map
Places in Slovenia:
Name
°F
24 Hours Forecast
Koper
Local time: 08:34
December 05, friday
0900
45°F
W
4 mph
4 mph
1200
50°F
SW
5 mph
5 mph
1500
48°F
SW
6 mph
6 mph
1800
45°F
SW
7 mph
7 mph
2100
39°F
SW
6 mph
6 mph
December 06, saturday
0000
39°F
SW
6 mph
6 mph
0300
43°F
SW
6 mph
6 mph
0600
46°F
SW
6 mph
6 mph
