19.12
fri
fri
Day
52°F
NE 2 mph
Precip.
84%
84%
Night
41°F
SW 3 mph
Precip.
0%
0%
20.12
sat
sat
Day
48°F
SW 3 mph
Precip.
0%
0%
Night
45°F
SW 6 mph
Precip.
0%
0%
21.12
sun
sun
Day
52°F
W 2 mph
Precip.
0%
0%
Night
48°F
SW 3 mph
Precip.
0%
0%
22.12
mon
mon
Day
50°F
SW 2 mph
Precip.
62%
62%
Night
48°F
SW 4 mph
Precip.
0%
0%
23.12
tue
tue
Day
45°F
W 9 mph
Precip.
0%
0%
Night
36°F
SW 8 mph
Precip.
0%
0%
24.12
wed
wed
Day
43°F
W 9 mph
Precip.
0%
0%
Night
37°F
SW 9 mph
Precip.
0%
0%
25.12
thu
thu
Day
37°F
SW 11 mph
Precip.
0%
0%
Night
30°F
SW 12 mph
Precip.
0%
0%
26.12
fri
fri
Day
37°F
SW 14 mph
Precip.
0%
0%
Night
34°F
SW 10 mph
Precip.
0%
0%
27.12
sat
sat
Day
37°F
SW 11 mph
Precip.
0%
0%
Night
30°F
SW 11 mph
Precip.
0%
0%
28.12
sun
sun
Day
41°F
SW 10 mph
Precip.
0%
0%
Night
32°F
SW 8 mph
Precip.
0%
0%
29.12
mon
mon
Day
39°F
SW 6 mph
Precip.
0%
0%
Night
30°F
SW 6 mph
Precip.
0%
0%
30.12
tue
tue
Day
43°F
SW 4 mph
Precip.
0%
0%
Night
34°F
SW 9 mph
Precip.
0%
0%
31.12
wed
wed
Day
41°F
SW 9 mph
Precip.
0%
0%
Night
32°F
SW 9 mph
Precip.
0%
0%
01.01
thu
thu
Day
36°F
SW 9 mph
Precip.
0%
0%
Night
25°F
W 8 mph
Precip.
0%
0%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 54.5°F. The highest and lowest sea temperatures during the month were 55.6°F and 53.4°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 49.3°F. The highest and lowest sea temperatures during the month were 50.5°F and 47.5°F.
Air temperature in Cerkno, °F
Precipitation total in Cerkno, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Cerkno
Cerkno on a weather map
Places in Slovenia:
Name
°F
24 Hours Forecast
Cerkno
Local time: 02:49
December 19, friday
0300
48°F
E
2 mph
2 mph
0600
46°F
SE
2 mph
2 mph
0900
50°F
E
1 mph
1 mph
1200
52°F
NE
2 mph
2 mph
1500
52°F
NE
1 mph
1 mph
1800
48°F
SW
2 mph
2 mph
2100
41°F
SW
2 mph
2 mph
December 20, saturday
0000
41°F
SW
3 mph
3 mph
