Castellammare water temp
This data the coastal Castellammare ocean 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 ocean temperature in Castellammare
Water temperature in Castellammare today is 67.5°F. Based on our historical data over a period of ten years, the warmest water in this day in Castellammare was recorded in 2015 and was 72.9°F, and the coldest was recorded in 2024 at 64°F. Sea water temperature in Castellammare is expected to drop to 67.1°F in the next 10 days. September average water temperature in Castellammare is 68.2°F, the minimum temperature is 62.4°F, and the maximum is 73.4°F.
The swimming season in Castellammare lasts from July to October. During those months, Castellammare water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Castellammare in winter reaches 59°F, in spring 59.4°F, in summer the average temperature rises to 66.9°F, and in autumn it is 65.7°F.
Castellammare water temperature now
| September 26, 2025 |
|---|
| today temp |
| 67.5°F |
| September 25, 2025 |
|---|
| yesterday temp |
| 68.2°F |
The ocean salinity in Castellammare is 32.75‰, and the average salinity of the World Ocean is 35‰.
Surf Forecast in Castellammare 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 Castellammare. 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 Castellammare. Data in table shown for September 27, 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' 3" | 2' 3" | 2' 6" | 2' 10" |
| 0.69 m | 0.69 m | 0.77 m | 0.87 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 2' 9" | 2' 6" | 2' 3" | 2' 2" |
| 0.83 m | 0.75 m | 0.69 m | 0.66 m |
Surf report in Castellammare
Castellammare weather forecast
Current temperature and weather
Data in a table show Castellammare temperature today (September 27, 2025). For more information and forecast for a few days, go to the weather forecast Castellammare.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 |  | |  |
| 65.1°F | 65.3°F | 65.3°F | 66.6°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
|  | | |
| 69.6°F | 69.8°F | 68.7°F | 67.3°F |
You may also be interested in other sections of our site for Castellammare: Sunrise and Sunset, Tides
Castellammare water temperature by month
These figures shows the average, minimum and maximum monthly sea temperature in Castellammare. 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 Castellammare 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 | 58.6°F | 54.7°F | 62.2°F | cold |
| Ocean water temperature in Castellammare in January | ||||
| February | 58.3°F | 53.4°F | 62.4°F | cold |
| Ocean water temperature in Castellammare in February | ||||
| March | 57.9°F | 53.4°F | 63.5°F | cold |
| Ocean water temperature in Castellammare in March | ||||
| April | 58.6°F | 53.2°F | 63.5°F | cold |
| Ocean water temperature in Castellammare in April | ||||
| May | 61.3°F | 55.9°F | 67.8°F | cold |
| Ocean water temperature in Castellammare in May | ||||
| June | 64.6°F | 54.7°F | 70.2°F | cold |
| Ocean water temperature in Castellammare in June | ||||
| July | 67.6°F | 61.5°F | 73°F | cold |
| Ocean water temperature in Castellammare in July | ||||
| August | 68.4°F | 60.4°F | 74.3°F | warm |
| Ocean water temperature in Castellammare in August | ||||
| September | 68.2°F | 62.4°F | 73.4°F | warm |
| Ocean water temperature in Castellammare in September | ||||
| October | 66.2°F | 59.7°F | 73.4°F | cold |
| Ocean water temperature in Castellammare in October | ||||
| November | 62.8°F | 55.8°F | 69.8°F | cold |
| Ocean water temperature in Castellammare in November | ||||
| December | 60.1°F | 55.6°F | 65.5°F | cold |
| Ocean water temperature in Castellammare in December | ||||
Chart monthly average water temperature in Castellammare
