This data the coastal Ayvalik 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 Ayvalik today is 24.1°C. Based on our historical data over a period of ten years, the warmest water in this day in the Aegean Sea near Ayvalik was recorded in 2024 and was 25.1°C, and the coldest was recorded in 2019 at 21.7°C. Sea water temperature in Ayvalik is expected to drop to 22.8°C in the next 10 days. September average water temperature in Ayvalik is 22.7°C, the minimum temperature is 19.7°C, and the maximum is 26.2°C.
The swimming season in Ayvalik lasts from May to October. During those months, Ayvalik water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Ayvalik in winter reaches 15.6°C, in spring 16.6°C, in summer the average temperature rises to 23.5°C, and in autumn it is 20.6°C.
5 September 2025 |
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today temp |
24.1°C |
4 September 2025 |
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yesterday temp |
23.9°C |
The sea salinity in Ayvalik is 39.58‰, 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 Ayvalik. 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 Ayvalik. 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 |
---|---|---|---|
0' 5" | 0' 4" | 0' 3" | 0' 2" |
0.12 m | 0.09 m | 0.07 m | 0.06 m |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
0' 4" | 1' 2" | 1' 0" | 0' 8" |
0.11 m | 0.35 m | 0.3 m | 0.2 m |
Data in a table show Ayvalik temperature today (5 September 2025). For more information and forecast for a few days, go to the weather forecast Ayvalik.
0-3 h | 3-6 h | 6-9 h | 9-12 h |
---|---|---|---|
![]() | ![]() | ![]() | ![]() |
22°C | 20.8°C | 20.2°C | 24.8°C |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
![]() | ![]() | ![]() | ![]() |
28.7°C | 31.1°C | 27.4°C | 24°C |
You may also be interested in other sections of our site for Ayvalik: Sunrise and Sunset, Tides
These figures shows the average, minimum and maximum monthly sea temperature in Ayvalik. 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 Ayvalik 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 | 15.4°C | 13.4°C | 18.2°C | cold |
Sea water temperature in Ayvalik in January | ||||
February | 14.7°C | 13°C | 16.8°C | cold |
Sea water temperature in Ayvalik in February | ||||
March | 14.9°C | 13.2°C | 17.8°C | cold |
Sea water temperature in Ayvalik in March | ||||
April | 16.1°C | 13.9°C | 19.5°C | cold |
Sea water temperature in Ayvalik in April | ||||
May | 18.9°C | 15.6°C | 22.3°C | cold |
Sea water temperature in Ayvalik in May | ||||
June | 22.5°C | 19.3°C | 26.3°C | warm |
Sea water temperature in Ayvalik in June | ||||
July | 23.8°C | 18.9°C | 26.9°C | warm |
Sea water temperature in Ayvalik in July | ||||
August | 24.1°C | 21.3°C | 27.1°C | warm |
Sea water temperature in Ayvalik in August | ||||
September | 22.7°C | 19.7°C | 26.2°C | warm |
Sea water temperature in Ayvalik in September | ||||
October | 20.6°C | 17.8°C | 23.4°C | warm |
Sea water temperature in Ayvalik in October | ||||
November | 18.5°C | 15.8°C | 21.5°C | cold |
Sea water temperature in Ayvalik in November | ||||
December | 16.8°C | 14.7°C | 19.6°C | cold |
Sea water temperature in Ayvalik in December |