Average sea water temperature in December:
+55.1°F
| Minimum sea water temperature in December: | 60.1°F |
| Maximum sea water temperature in December: | 50.2°F |
Daily sea water temperature in December, °F
Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
47
50
53
56
59
62
65
The average sea water temperature in December of 2024 was 55.7°F. The highest and lowest sea temperatures during the month were 59.0°F and 51.3°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 December?
| Place name | December 2024 | December 2023 |
|---|---|---|
| Dolenjske Toplice | 57.1°F | 57.4°F |
| Portoroz | 56.5°F | 56.6°F |
| Piran | 56.5°F | 56.6°F |
| Strunjan | 56.2°F | 56.3°F |
| Isola | 55.9°F | 55.9°F |
| Koper | 55.7°F | 55.7°F |
| Cerkno | 54.0°F | 54.9°F |
| Bohinjsko Jezero | 53.8°F | 54.8°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: 19:25
April 27, sunday
2100
59°F
W
4 mph
4 mph
April 28, monday
0000
55°F
SW
6 mph
6 mph
0300
55°F
W
5 mph
5 mph
0600
55°F
W
4 mph
4 mph
0900
63°F
SW
2 mph
2 mph
1200
66°F
E
7 mph
7 mph
1500
64°F
E
6 mph
6 mph
1800
63°F
SE
4 mph
4 mph
