Average sea water temperature in January:
+51.3°F
| Minimum sea water temperature in January: | 55.4°F |
| Maximum sea water temperature in January: | 46.9°F |
Daily sea water temperature in January, °F
Show year:
2026
2025
2024
The average sea water temperature in January of 2026 was 51.4°F. The highest and lowest sea temperatures during the month were 54.5°F and 48.6°F.
Monthly sea water temperature in Piran, °F
Which Slovenia resorts have warmest sea in January?
| Place name | January 2026 | January 2025 |
|---|---|---|
| Dolenjske Toplice | 53.6°F | 53.3°F |
| Portoroz | 51.4°F | 51.6°F |
| Piran | 51.4°F | 51.6°F |
| Strunjan | 51.0°F | 51.1°F |
| Isola | 50.7°F | 50.6°F |
| Koper | 50.5°F | 50.2°F |
| Cerkno | 49.3°F | 49.3°F |
| Bohinjsko Jezero | 49.2°F | 49.3°F |
Best time for vacation in Piran
Piran on a weather map
Places in Slovenia:
Name
°F
24 Hours Forecast
Piran
Local time: 21:44
July 22, wednesday
0000
66°F
W
8 mph
8 mph
0300
70°F
W
9 mph
9 mph
0600
61°F
W
6 mph
6 mph
0900
73°F
SW
9 mph
9 mph
1200
81°F
S
7 mph
7 mph
1500
81°F
SE
7 mph
7 mph
1800
79°F
E
8 mph
8 mph
2100
64°F
NE
1 mph
1 mph
