This data the coastal Yalova 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 Yalova today is 24°C. Based on our historical data over a period of ten years, the warmest water in this day in Yalova was recorded in 2007 and was 24.8°C, and the coldest was recorded in 2021 at 22.2°C. Sea water temperature in Yalova is expected to drop to 22.9°C in the next 10 days. September average water temperature in Yalova is 22.7°C, the minimum temperature is 19.4°C, and the maximum is 25.8°C.
The swimming season in Yalova lasts from June to October. During those months, Yalova water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Yalova in winter reaches 10°C, in spring 12.5°C, in summer the average temperature rises to 23.2°C, and in autumn it is 19.1°C.
5 September 2025 |
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today temp |
24°C |
4 September 2025 |
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yesterday temp |
24.6°C |
The sea salinity in Yalova is 21.27‰, 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 Yalova. 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 Yalova. 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 |
---|---|---|---|
1' 2" | 1' 4" | 1' 5" | 1' 7" |
0.35 m | 0.4 m | 0.42 m | 0.47 m |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
1' 8" | 1' 5" | 0' 11" | 0' 9" |
0.5 m | 0.43 m | 0.28 m | 0.22 m |
Data in a table show Yalova temperature today (5 September 2025). For more information and forecast for a few days, go to the weather forecast Yalova.
0-3 h | 3-6 h | 6-9 h | 9-12 h |
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![]() | ![]() | ![]() | ![]() |
21.5°C | 22.2°C | 22.4°C | 25.4°C |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
![]() | ![]() | ![]() | ![]() |
28.2°C | 26.5°C | 23.7°C | 21.7°C |
You may also be interested in other sections of our site for Yalova: Sunrise and Sunset, Tides
These figures shows the average, minimum and maximum monthly sea temperature in Yalova. 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 Yalova 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 | 9.4°C | 6.8°C | 12.6°C | cold |
Sea water temperature in Yalova in January | ||||
February | 8.5°C | 6.1°C | 11.4°C | cold |
Sea water temperature in Yalova in February | ||||
March | 9.2°C | 6.7°C | 14.1°C | cold |
Sea water temperature in Yalova in March | ||||
April | 12°C | 9°C | 16.6°C | cold |
Sea water temperature in Yalova in April | ||||
May | 16.4°C | 11.3°C | 21.3°C | cold |
Sea water temperature in Yalova in May | ||||
June | 21.4°C | 16.7°C | 25.2°C | warm |
Sea water temperature in Yalova in June | ||||
July | 23.8°C | 20.5°C | 27.6°C | warm |
Sea water temperature in Yalova in July | ||||
August | 24.4°C | 21.7°C | 27.2°C | warm |
Sea water temperature in Yalova in August | ||||
September | 22.7°C | 19.4°C | 25.8°C | warm |
Sea water temperature in Yalova in September | ||||
October | 19.1°C | 14.8°C | 22.9°C | cold |
Sea water temperature in Yalova in October | ||||
November | 15.4°C | 11.2°C | 20.2°C | cold |
Sea water temperature in Yalova in November | ||||
December | 12°C | 9.3°C | 15.4°C | cold |
Sea water temperature in Yalova in December |