20.12
sat
sat
Day

55°F
S 2 mph
Precip.
0%
0%
Night

41°F
W 4 mph
Precip.
0%
0%
21.12
sun
sun
Day

54°F
W 2 mph
Precip.
0%
0%
Night

41°F
W 5 mph
Precip.
0%
0%
22.12
mon
mon
Day

52°F
W 3 mph
Precip.
0%
0%
Night

45°F
W 4 mph
Precip.
76%
76%
23.12
tue
tue
Day

52°F
W 4 mph
Precip.
100%
100%
Night

41°F
W 11 mph
Precip.
100%
100%
24.12
wed
wed
Day

46°F
SW 13 mph
Precip.
100%
100%
Night

37°F
SW 17 mph
Precip.
100%
100%
25.12
thu
thu
Day

45°F
SW 12 mph
Precip.
0%
0%
Night

34°F
W 8 mph
Precip.
42%
42%
26.12
fri
fri
Day

45°F
W 6 mph
Precip.
0%
0%
Night

32°F
W 7 mph
Precip.
0%
0%
27.12
sat
sat
Day

43°F
SW 6 mph
Precip.
0%
0%
Night

32°F
W 6 mph
Precip.
0%
0%
28.12
sun
sun
Day

45°F
SW 4 mph
Precip.
0%
0%
Night

32°F
W 6 mph
Precip.
0%
0%
29.12
mon
mon
Day

43°F
SW 2 mph
Precip.
0%
0%
Night

32°F
W 4 mph
Precip.
0%
0%
30.12
tue
tue
Day

41°F
W 2 mph
Precip.
72%
72%
Night

39°F
W 5 mph
Precip.
100%
100%
31.12
wed
wed
Day

48°F
NW 5 mph
Precip.
100%
100%
Night

41°F
SW 7 mph
Precip.
100%
100%
01.01
thu
thu
Day

41°F
SW 15 mph
Precip.
100%
100%
Night

30°F
W 15 mph
Precip.
100%
100%
02.01
fri
fri
Day

32°F
W 7 mph
Precip.
100%
100%
Night

27°F
SW 12 mph
Precip.
100%
100%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 56.6°F. The highest and lowest sea temperatures during the month were 57.9°F and 55.2°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 51.6°F. The highest and lowest sea temperatures during the month were 53.2°F and 50.4°F.
Air temperature in Piran, °F
Precipitation total in Piran, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Piran
Piran on a weather map
Places in Slovenia:
Name
°F
24 Hours Forecast
Piran
Local time: 11:44
December 20, saturday
1200

55°F
S
2 mph
2 mph
1500

54°F
S
2 mph
2 mph
1800

50°F
SW
2 mph
2 mph
2100

43°F
W
4 mph
4 mph
December 21, sunday
0000

41°F
W
4 mph
4 mph
0300

41°F
W
5 mph
5 mph
0600

41°F
W
4 mph
4 mph
0900

41°F
W
4 mph
4 mph




























