Swimming in Piran in december 2026: Average sea temperature in december and tide times in december 2026
Average sea temperature in Piran in december 2026.
In december, according to seasonal norms, the sea temperature in Piran is:
Minimum: 52°F
Average: 56°F
Maximum: 60°F
Other useful seasonal weather averages in december:
- Outside temperature: 37°F to 48°F
- Most common weather: "Clear/Sunny"
- The wind blows at 0mph
- It rains a total of 8.8in, over 8 day(s).
Should we swim in Piran in december?
No... The water temperature in Piran in december is freezing
You won't be able to swim in Piran in december! The water temperature is freezing, reaching as low as 52°F (and only 60°F at best)! Our advice: if you are going to Piran this month, plan to sightsee and forget the beach!
Note also that in december, the climate is very bad with an average outside temperature of 43°F, 8.8in of precipitation (over 8 days) and 82.96 % humidity.
Water and normal seasonal temperatures in Piran in december
| December | |||
| Average sea temperature | 56°F | ||
| Minimum sea temperature | 52°F | ||
| Maximum sea temperature | 60°F | ||
| Average outside temperature | 43°F | ||
| Maximum outside temperature | 49°F | ||
| Minimum outside temperature | 38°F | ||
| Wind speed | 8.1mph | ||
| Wind temperature | 32°F | ||
| Precipitation | 8.8in | ||
| Number of days of rain | 8 jour(s) (26%) | ||
| Humidity | 83% | ||
| Visibility in kilometers | 8.9km | ||
| Cloud cover | 47% | ||
| Our opinion | freezing swimming |
Chart of the tides in december 2026
Tide times in december 2026 in Piran
Swim elsewhere in Slovenia in december
| City | Average T° | Min. T° | Max. T° | Our opinion | Izola in december | 56°F | 60°F | freezing swimming |