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
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44
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48
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54
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58
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
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
13
26
39
52
65
78
91
104
55.1
61.3
67.3
73.7
78.5
78.1
73.1
64
55.7
50.4
48.7
50.6
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
Leaflet | Tiles © Esri
Places in Slovenia:
Name
°F
24 Hours Forecast
Koper
Local time: 05:08
April 27, sunday
0600
54°F
SW
6 mph
6 mph
0900
63°F
SW
2 mph
2 mph
1200
64°F
E
5 mph
5 mph
1500
64°F
NE
6 mph
6 mph
1800
63°F
SW
3 mph
3 mph
2100
57°F
NW
6 mph
6 mph
April 28, monday
0000
55°F
SW
7 mph
7 mph
0300
55°F
W
6 mph
6 mph
