This data the coastal Karasu 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 Karasu today is 24.5°C. Based on our historical data over a period of ten years, the warmest water in this day in Karasu was recorded in 2018 and was 26.3°C, and the coldest 23.7°C. Sea water temperature in Karasu is expected to drop to 23.8°C in the next 10 days. September average water temperature in Karasu is 23.7°C, the minimum temperature is 20.8°C, and the maximum is 26.6°C.
The swimming season in Karasu lasts from June to October. During those months, Karasu water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Karasu in winter reaches 9.6°C, in spring 11.6°C, in summer the average temperature rises to 24°C, and in autumn it is 19.7°C.
5 September 2025 |
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today temp |
24.5°C |
4 September 2025 |
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yesterday temp |
24.6°C |
The sea salinity in Karasu is 17.95‰, 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 Karasu. 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 Karasu. 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 |
---|---|---|---|
4' 7" | 4' 5" | 4' 2" | 4' 1" |
1.4 m | 1.35 m | 1.27 m | 1.24 m |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
3' 10" | 3' 9" | 3' 10" | 3' 10" |
1.18 m | 1.15 m | 1.16 m | 1.16 m |
Data in a table show Karasu temperature today (5 September 2025). For more information and forecast for a few days, go to the weather forecast Karasu.
0-3 h | 3-6 h | 6-9 h | 9-12 h |
---|---|---|---|
![]() | ![]() | ![]() | ![]() |
14.3°C | 13.9°C | 15.2°C | 28°C |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
![]() | ![]() | ![]() | ![]() |
31.1°C | 29.3°C | 21.4°C | 20.4°C |
You may also be interested in other sections of our site for Karasu: Sunrise and Sunset, Tides
These figures shows the average, minimum and maximum monthly sea temperature in Karasu. 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 Karasu 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 | 9.1°C | 5.8°C | 11.7°C | cold |
Sea water temperature in Karasu in January | ||||
February | 7.8°C | 5.6°C | 10.2°C | cold |
Sea water temperature in Karasu in February | ||||
March | 8.3°C | 6°C | 12.4°C | cold |
Sea water temperature in Karasu in March | ||||
April | 10.8°C | 7.7°C | 15.7°C | cold |
Sea water temperature in Karasu in April | ||||
May | 15.8°C | 10.5°C | 20.8°C | cold |
Sea water temperature in Karasu in May | ||||
June | 21.7°C | 17.1°C | 25.7°C | warm |
Sea water temperature in Karasu in June | ||||
July | 24.8°C | 22.3°C | 28.4°C | warm |
Sea water temperature in Karasu in July | ||||
August | 25.5°C | 22.7°C | 28.5°C | hot |
Sea water temperature in Karasu in August | ||||
September | 23.7°C | 20.8°C | 26.6°C | warm |
Sea water temperature in Karasu in September | ||||
October | 19.7°C | 15.6°C | 23.2°C | cold |
Sea water temperature in Karasu in October | ||||
November | 15.6°C | 11.5°C | 20.7°C | cold |
Sea water temperature in Karasu in November | ||||
December | 11.8°C | 8.8°C | 15.4°C | cold |
Sea water temperature in Karasu in December |