Water temperature in Dassia
This data the coastal Dassia 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.
Current sea temperature in Dassia
Water temperature in Dassia today is 24.7°C. Based on our historical data over a period of ten years, the warmest water in this day in the Ionian Sea near Dassia was recorded in 2011 and was 25.5°C, and the coldest was recorded in 2007 at 21.8°C. Sea water temperature in Dassia is expected to drop to 23.4°C in the next 10 days. September average water temperature in Dassia is 25.1°C, the minimum temperature is 21.5°C, and the maximum is 28.2°C.
The swimming season in Dassia lasts from May to November. During those months, Dassia water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Dassia in winter reaches 16°C, in spring 17°C, in summer the average temperature rises to 24.9°C, and in autumn it is 22.7°C.
Dassia water temperature now
| 26 September 2025 |
|---|
| today temp |
| 24.7°C |
| 25 September 2025 |
|---|
| yesterday temp |
| 24.7°C |
The sea salinity in Dassia is 38.87‰, and the average salinity of the World Ocean is 35‰.
Surf Forecast in Dassia for today
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 Dassia. 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 Dassia. Data in table shown for 26 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' 3" | 1' 1" | 0' 11" | 0' 10" |
| 0.37 m | 0.32 m | 0.28 m | 0.25 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 0' 9" | 0' 9" | 0' 9" | 0' 8" |
| 0.22 m | 0.22 m | 0.22 m | 0.2 m |
Surf report in Dassia
Dassia weather forecast
Current temperature and weather
Data in a table show Dassia temperature today (26 September 2025). For more information and forecast for a few days, go to the weather forecast Dassia.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 | |  |  |
| 22.8°C | 22.3°C | 21.8°C | 23.8°C |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| | | |
| 25°C | 24.8°C | 23.1°C | 22.5°C |
You may also be interested in other sections of our site for Dassia: Sunrise and Sunset, Tides
Dassia water temperature by month
These figures shows the average, minimum and maximum monthly sea temperature in Dassia. 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 Dassia 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 | 15.7°C | 12.9°C | 17.9°C | cold |
| Sea water temperature in Dassia in January | ||||
| February | 14.8°C | 13.7°C | 15.9°C | cold |
| Sea water temperature in Dassia in February | ||||
| March | 15°C | 13.6°C | 16.7°C | cold |
| Sea water temperature in Dassia in March | ||||
| April | 16.4°C | 14°C | 21.2°C | cold |
| Sea water temperature in Dassia in April | ||||
| May | 19.6°C | 16.6°C | 24.5°C | cold |
| Sea water temperature in Dassia in May | ||||
| June | 23.2°C | 19°C | 27.8°C | warm |
| Sea water temperature in Dassia in June | ||||
| July | 25.3°C | 21.3°C | 29.3°C | hot |
| Sea water temperature in Dassia in July | ||||
| August | 26.3°C | 23.7°C | 29.4°C | hot |
| Sea water temperature in Dassia in August | ||||
| September | 25.1°C | 21.5°C | 28.2°C | hot |
| Sea water temperature in Dassia in September | ||||
| October | 22.6°C | 20.3°C | 25.5°C | warm |
| Sea water temperature in Dassia in October | ||||
| November | 20.3°C | 17.2°C | 23.5°C | warm |
| Sea water temperature in Dassia in November | ||||
| December | 17.6°C | 15.4°C | 20.2°C | cold |
| Sea water temperature in Dassia in December | ||||
Chart monthly average water temperature in Dassia
