15.12
sun
sun
Day
48°F
SE 2 mph
Precip.
0%
0%
Night
36°F
W 3 mph
Precip.
0%
0%
16.12
mon
mon
Day
48°F
SE 2 mph
Precip.
0%
0%
Night
36°F
W 3 mph
Precip.
0%
0%
17.12
tue
tue
Day
50°F
NE 2 mph
Precip.
0%
0%
Night
36°F
W 3 mph
Precip.
0%
0%
18.12
wed
wed
Day
48°F
NE 1 mph
Precip.
0%
0%
Night
36°F
NW 2 mph
Precip.
0%
0%
19.12
thu
thu
Day
45°F
N 2 mph
Precip.
62%
62%
Night
45°F
NW 6 mph
Precip.
100%
100%
20.12
fri
fri
Day
48°F
SW 13 mph
Precip.
53%
53%
Night
34°F
W 6 mph
Precip.
0%
0%
21.12
sat
sat
Day
45°F
SW 2 mph
Precip.
0%
0%
Night
34°F
W 4 mph
Precip.
0%
0%
22.12
sun
sun
Day
45°F
SW 3 mph
Precip.
0%
0%
Night
32°F
SW 8 mph
Precip.
0%
0%
23.12
mon
mon
Day
45°F
SW 15 mph
Precip.
0%
0%
Night
34°F
SW 14 mph
Precip.
0%
0%
24.12
tue
tue
Day
45°F
SW 9 mph
Precip.
0%
0%
Night
30°F
W 4 mph
Precip.
0%
0%
25.12
wed
wed
Day
45°F
NE 1 mph
Precip.
0%
0%
Night
36°F
NW 4 mph
Precip.
0%
0%
26.12
thu
thu
Day
46°F
E 2 mph
Precip.
0%
0%
Night
34°F
W 3 mph
Precip.
0%
0%
27.12
fri
fri
Day
46°F
N 3 mph
Precip.
0%
0%
Night
36°F
W 4 mph
Precip.
0%
0%
28.12
sat
sat
Day
48°F
N 2 mph
Precip.
0%
0%
Night
43°F
NW 2 mph
Precip.
49%
49%
Sea water temperature in December, °F
Show year:
2024
2023
2022
The average sea water temperature in December of 2024 was 57.6°F. The highest and lowest sea temperatures during the month were 59.0°F and 56.8°F.
Air temperature in Koper, °F
Precipitation total in Koper, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Koper
Koper on a weather map
Places in Slovenia:
Name
°F
24 Hours Forecast
Koper
Local time: 17:38
December 15, sunday
1800
43°F
W
2 mph
2 mph
2100
36°F
W
3 mph
3 mph
December 16, monday
0000
36°F
W
3 mph
3 mph
0300
36°F
W
3 mph
3 mph
0600
36°F
W
3 mph
3 mph
0900
37°F
W
2 mph
2 mph
1200
48°F
SE
2 mph
2 mph
1500
48°F
SE
1 mph
1 mph
