
Current water temperature on the Slovenia coast. Forecast of changes in water temperature. Historical data.
Water temperature in Slovenia today
Most popular locations in Slovenia over the past week
Conditions of sea water on beaches in Slovenia
Now the water temperature in the beaches in Slovenia is cool. Swimming in this water can be uncomfortable.
The water temperature in Slovenia tends to decrease, its value has decreased both over the last 10 days and over the month.

Today the warmest water in Slovenia is recorded in Koper. Its value in this location is 61°F. And the coldest one is in Piran, its value 60°F.
The trend can be seen on the graph. It shows the change in average sea surface temperature over the past two months.
For the two most popular locations for swimming in Slovenia, the graphs of changes in the average water temperature throughout the year are as follows:
We process, analyze and store data for every beach and city in Slovenia. Below is a table with current weather data and trends in some places of the country.
City | Water | Air | ||
Izola | 61°F | ![]() ![]() | 47°F | ![]() |
Portoroz | 61°F | ![]() ![]() | 47°F | ![]() |
Koper | 61°F | ![]() ![]() | 47°F | ![]() |
Strunjan | 61°F | ![]() ![]() | 47°F | ![]() |
Piran | 60°F | ![]() ![]() | 47°F | ![]() |
Ankaran | 61°F | ![]() ![]() | 47°F | ![]() |
Lucija | 60°F | ![]() ![]() | 47°F | ![]() |
Jagodje | 61°F | ![]() ![]() | 47°F | ![]() |
Plaza Lazaret | 60°F | ![]() ![]() | 47°F | ![]() |
Dobrava | 61°F | ![]() ![]() | 47°F | ![]() |
Climate in Slovenia

Slovenia is located in Europe. The country is washed by the Adriatic Sea. Slovenia is a small country. To determine the temperature of the water in it, we monitor only seven settlements or resorts.
Mostly temperate continental, with clearly distinguished three climatic zones - Central European in the east of the country (hot summers and cold winters), Alpine in the northwest (cold winters and moderate summers) and Mediterranean on the Adriatic coast. In summer, the average air temperature in most of the country is + 21°C, and in winter - from -2°C in the north-west to + 6°C on the Adriatic coast.
Slovenia: regions
We show the surface temperature of the water in the following regions of the country:

Slovenia: oceans and seas
We monitor the following oceans and seas that wash the country. Just go to the page for a specific reservoir and see the temperature in all settlements on the coast.