This data the coastal Porto Vromi 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 Porto Vromi today is 25.9°C. Based on our historical data over a period of ten years, the warmest water in this day in the Ionian Sea near Porto Vromi was recorded in 2024 and was 28.1°C, and the coldest was recorded in 2010 at 24.6°C. Sea water temperature in Porto Vromi is expected to drop to 25.8°C in the next 10 days. September average water temperature in Porto Vromi is 25.6°C, the minimum temperature is 22.2°C, and the maximum is 28.8°C.
The swimming season in Porto Vromi lasts from May to November. During those months, Porto Vromi water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Porto Vromi in winter reaches 16.8°C, in spring 17.2°C, in summer the average temperature rises to 24.9°C, and in autumn it is 23.2°C.
5 September 2025 |
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today temp |
25.9°C |
4 September 2025 |
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yesterday temp |
26.3°C |
The sea salinity in Porto Vromi is 39.14‰, 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 Porto Vromi. 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 Porto Vromi. Data in table shown for 5 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' 6" | 2' 6" | 2' 5" | 2' 6" |
0.76 m | 0.75 m | 0.74 m | 0.77 m |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
3' 1" | 3' 1" | 3' 0" | 2' 10" |
0.94 m | 0.95 m | 0.92 m | 0.87 m |
Data in a table show Porto Vromi temperature today (5 September 2025). For more information and forecast for a few days, go to the weather forecast Porto Vromi.
0-3 h | 3-6 h | 6-9 h | 9-12 h |
---|---|---|---|
![]() | ![]() | ![]() | ![]() |
24.1°C | 23.9°C | 23.7°C | 25.6°C |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
![]() | ![]() | ![]() | ![]() |
26.9°C | 27.2°C | 26.2°C | 25.2°C |
You may also be interested in other sections of our site for Porto Vromi: Sunrise and Sunset, Tides
These figures shows the average, minimum and maximum monthly sea temperature in Porto Vromi. 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 Porto Vromi 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 | |
---|---|---|---|---|
January | 16.5°C | 13.4°C | 18.4°C | cold |
Sea water temperature in Porto Vromi in January | ||||
February | 15.8°C | 14.4°C | 17.5°C | cold |
Sea water temperature in Porto Vromi in February | ||||
March | 15.7°C | 14.1°C | 17.2°C | cold |
Sea water temperature in Porto Vromi in March | ||||
April | 16.6°C | 14.6°C | 19.8°C | cold |
Sea water temperature in Porto Vromi in April | ||||
May | 19.2°C | 16.2°C | 23.1°C | cold |
Sea water temperature in Porto Vromi in May | ||||
June | 22.9°C | 18.8°C | 26.5°C | warm |
Sea water temperature in Porto Vromi in June | ||||
July | 25.3°C | 21.8°C | 28.6°C | hot |
Sea water temperature in Porto Vromi in July | ||||
August | 26.5°C | 24.6°C | 29.2°C | hot |
Sea water temperature in Porto Vromi in August | ||||
September | 25.6°C | 22.2°C | 28.8°C | hot |
Sea water temperature in Porto Vromi in September | ||||
October | 23.2°C | 20.9°C | 25.9°C | warm |
Sea water temperature in Porto Vromi in October | ||||
November | 20.8°C | 18°C | 23.7°C | warm |
Sea water temperature in Porto Vromi in November | ||||
December | 18.2°C | 15.8°C | 21.1°C | cold |
Sea water temperature in Porto Vromi in December |