This data the coastal Isola Rossa 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.
Water temperature in Isola Rossa today is 24.8°C. Based on our historical data over a period of ten years, the warmest water in this day in the Mediterranean Sea near Isola Rossa was recorded in 2022 and was 26.6°C, and the coldest was recorded in 2023 at 22.2°C. Sea water temperature in Isola Rossa is expected to drop to 23.9°C in the next 10 days. September average water temperature in Isola Rossa is 23.8°C, the minimum temperature is 20.9°C, and the maximum is 27.3°C.
The swimming season in Isola Rossa lasts from June to October. During those months, Isola Rossa water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Isola Rossa in winter reaches 14.5°C, in spring 15.5°C, in summer the average temperature rises to 24.1°C, and in autumn it is 21.2°C.
6 September 2025 |
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today temp |
24.8°C |
5 September 2025 |
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yesterday temp |
24.9°C |
The sea salinity in Isola Rossa is 38.14‰, and the average salinity of the World Ocean is 35‰.
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 Isola Rossa. 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 Isola Rossa. Data in table shown for 6 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)
0-3 h | 3-6 h | 6-9 h | 9-12 h |
---|---|---|---|
2' 7" | 2' 6" | 2' 4" | 2' 1" |
0.8 m | 0.77 m | 0.7 m | 0.63 m |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
1' 10" | 1' 7" | 1' 3" | 1' 1" |
0.55 m | 0.47 m | 0.39 m | 0.32 m |
Data in a table show Isola Rossa temperature today (6 September 2025). For more information and forecast for a few days, go to the weather forecast Isola Rossa.
0-3 h | 3-6 h | 6-9 h | 9-12 h |
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![]() | ![]() | ![]() | ![]() |
18.4°C | 17.8°C | 17.4°C | 24.6°C |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
![]() | ![]() | ![]() | ![]() |
28.3°C | 27.9°C | 24.1°C | 20.3°C |
You may also be interested in other sections of our site for Isola Rossa: Sunrise and Sunset, Tides
These figures shows the average, minimum and maximum monthly sea temperature in Isola Rossa. 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 Isola Rossa 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
Month | Avr | Min | Max | |
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January | 14.2°C | 12.9°C | 16.4°C | cold |
Sea water temperature in Isola Rossa in January | ||||
February | 13.5°C | 12.4°C | 14.6°C | cold |
Sea water temperature in Isola Rossa in February | ||||
March | 13.7°C | 12.7°C | 15.1°C | cold |
Sea water temperature in Isola Rossa in March | ||||
April | 15.1°C | 13.2°C | 17.8°C | cold |
Sea water temperature in Isola Rossa in April | ||||
May | 17.8°C | 15.2°C | 21.7°C | cold |
Sea water temperature in Isola Rossa in May | ||||
June | 21.7°C | 17.2°C | 27°C | warm |
Sea water temperature in Isola Rossa in June | ||||
July | 24.9°C | 21.2°C | 28.7°C | warm |
Sea water temperature in Isola Rossa in July | ||||
August | 25.7°C | 23.2°C | 28.7°C | hot |
Sea water temperature in Isola Rossa in August | ||||
September | 23.8°C | 20.9°C | 27.3°C | warm |
Sea water temperature in Isola Rossa in September | ||||
October | 21.3°C | 18°C | 23.9°C | warm |
Sea water temperature in Isola Rossa in October | ||||
November | 18.6°C | 15.2°C | 22°C | cold |
Sea water temperature in Isola Rossa in November | ||||
December | 15.7°C | 13.8°C | 18.5°C | cold |
Sea water temperature in Isola Rossa in December |