Swimming in Slovenia in october 2025 Sea temperature by city in october
Do you want to go to the beach in Slovenia in october 2025? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in october in Slovenia by city and our opinion on the chances of enjoying pleasant sea conditions.
Sea temperature in Slovenia in october 2025
Here, find the average sea temperature in Slovenia in october in several coastal cities.
67°F
min: 61°F / max: 72°F
Ankaran
67°F
min: 61°F / max: 72°F
67°F
min: 61°F / max: 72°F
Koper
67°F
min: 61°F / max: 72°F
Portorož
67°F
min: 61°F / max: 72°F
Where should you go swimming in Slovenia in the month of october?
Swimming in Slovenia in october is cool
In october in Slovenia swimming conditions are generally the same everywhere.
Swimming in october in Piran, Ankaran, Izola, Koper and Portorož is possible but the sea is generally cool. So though the sea temperature may sometimes reach 72°F, it can also go as low as 61°F. Note that the average is 67°F.
Where to go swimming in Slovenia in october: the map of sea temperatures
ideal swimming 
pleasant swimming 
cool swimming 
cold swimming 
freezing swimmingWater temperature and seasonal norms in october
Piran
| October | |||
| Average sea temperature | 67°F | ||
| Minimum sea temperature | 61°F | ||
| Maximum sea temperature | 72°F | ||
| Average outside temperature | 59°F | ||
| Maximum outside temperature | 67°F | ||
| Minimum outside temperature | 52°F | ||
| Precipitation | 7.8in | ||
| Number of days of precipitation | 8 jour(s) (25%) | ||
| Cloud cover | 37% | ||
| Our opinion | cool swimming |
More information on swimming in Piran in october
Ankaran
| October | |||
| Average sea temperature | 67°F | ||
| Minimum sea temperature | 61°F | ||
| Maximum sea temperature | 72°F | ||
| Average outside temperature | 59°F | ||
| Maximum outside temperature | 67°F | ||
| Minimum outside temperature | 52°F | ||
| Precipitation | 7.8in | ||
| Number of days of precipitation | 8 jour(s) (25%) | ||
| Cloud cover | 37% | ||
| Our opinion | cool swimming |
Izola
| October | |||
| Average sea temperature | 67°F | ||
| Minimum sea temperature | 61°F | ||
| Maximum sea temperature | 72°F | ||
| Average outside temperature | 59°F | ||
| Maximum outside temperature | 67°F | ||
| Minimum outside temperature | 52°F | ||
| Precipitation | 7.8in | ||
| Number of days of precipitation | 8 jour(s) (25%) | ||
| Cloud cover | 37% | ||
| Our opinion | cool swimming |
More information on swimming in Izola in october
Koper
| October | |||
| Average sea temperature | 67°F | ||
| Minimum sea temperature | 61°F | ||
| Maximum sea temperature | 72°F | ||
| Average outside temperature | 59°F | ||
| Maximum outside temperature | 67°F | ||
| Minimum outside temperature | 52°F | ||
| Precipitation | 7.8in | ||
| Number of days of precipitation | 8 jour(s) (25%) | ||
| Cloud cover | 37% | ||
| Our opinion | cool swimming |
Portorož
| October | |||
| Average sea temperature | 67°F | ||
| Minimum sea temperature | 61°F | ||
| Maximum sea temperature | 72°F | ||
| Average outside temperature | 59°F | ||
| Maximum outside temperature | 67°F | ||
| Minimum outside temperature | 52°F | ||
| Precipitation | 7.8in | ||
| Number of days of precipitation | 8 jour(s) (25%) | ||
| Cloud cover | 37% | ||
| Our opinion | cool swimming |
List of coastal cities in Slovenia
| Piran in october | cool swimming |
| Ankaran in october | cool swimming |
| Izola in october | cool swimming |
| Koper in october | cool swimming |
| Portorož in october | cool swimming |