Water temperature in Umag

This data the coastal Umag sea water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current sea temperature in Umag

Water temperature in Umag today is 23.8°C. Based on our historical data over a period of ten years, the warmest water in this day in the Adriatic Sea near Umag was recorded in 2023 and was 23.6°C, and the coldest was recorded in 2008 at 20.6°C. Sea water temperature in Umag is expected to drop to 20.9°C in the next 10 days. September average water temperature in Umag is 23.4°C, the minimum temperature is 19.7°C, and the maximum is 28.7°C.

The swimming season in Umag lasts from June to October. During those months, Umag water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Umag in winter reaches 11.6°C, in spring 14.2°C, in summer the average temperature rises to 25.1°C, and in autumn it is 19.9°C.

Umag water temperature now

The sea salinity in Umag is 35.66‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Umag for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Umag. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Umag. Data in table shown for 26 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Umag

Umag weather forecast

Current temperature and weather

Data in a table show Umag temperature today (26 September 2025). For more information and forecast for a few days, go to the weather forecast Umag.

0-3 h	3-6 h	6-9 h	9-12 h
17°C	16°C	16.3°C	18°C

12-15 h	15-18 h	18-21 h	21-24 h
20.2°C	20.4°C	18.4°C	17.5°C

Umag water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Umag. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Umag on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Umag

The nearest beaches and cities from Umag with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Katoro	23.7°C	20°C		0.06 m
Monterol	23.7°C	20°C		0.06 m
Savudrija	23.8°C	20°C		0.06 m
Basanija	23.8°C	20°C		0.06 m
Zambratija	23.8°C	20°C		0.06 m
Kanegra	23.7°C	20°C		0.05 m
Duba	23.5°C	20°C		0.05 m
Piran	23.7°C	20°C		0.05 m
Mareda	23.5°C	20°C		0.05 m
Strunjan	23.6°C	20°C		0.04 m

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Our report for Umag is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.