Sebastian water temp
This data the coastal Sebastian 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 Sebastian
Water temperature in Sebastian today is 75°F. Based on our historical data over a period of ten years, the warmest water in this day in Sebastian was recorded in 2015 and was 80.8°F, and the coldest was recorded in 2008 at 73.4°F. Sea water temperature in Sebastian is expected to rise to 76.5°F in the next 10 days. November average water temperature in Sebastian is 76.3°F, the minimum temperature is 69.8°F, and the maximum is 81.1°F.
The swimming season in Sebastian lasts from January to December, twelve months per year! During those months, Sebastian water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Sebastian in winter reaches 71.2°F, in spring 74.7°F, in summer the average temperature rises to 81.9°F, and in autumn it is 80.1°F.
Sebastian water temperature now
| November 6, 2025 |
|---|
| today temp |
| 75°F |
| November 5, 2025 |
|---|
| yesterday temp |
| 75°F |
The ocean salinity in Sebastian is 36.48‰, and the average salinity of the World Ocean is 35‰.
Surf Forecast in Sebastian 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 Sebastian. 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 Sebastian. Data in table shown for November 6, 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' 5" | 2' 3" | 2' 1" | 2' 0" |
| 0.73 m | 0.68 m | 0.64 m | 0.61 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 1' 11" | 1' 10" | 1' 9" | 1' 9" |
| 0.58 m | 0.56 m | 0.54 m | 0.53 m |
Surf report in Sebastian
Sebastian weather forecast
Current temperature and weather
Data in a table show Sebastian temperature today (November 6, 2025). For more information and forecast for a few days, go to the weather forecast Sebastian.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 | | |  |
| 74.1°F | 74.3°F | 73.8°F | 73.6°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
|  |  | |
| 76.8°F | 75.7°F | 74.8°F | 73.9°F |
You may also be interested in other sections of our site for Sebastian: Sunrise and Sunset, Tides
Sebastian water temperature by month
These figures shows the average, minimum and maximum monthly sea temperature in Sebastian. 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 Sebastian 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 | 70.5°F | 57.9°F | 77°F | warm |
| Ocean water temperature in Sebastian in January | ||||
| February | 70.2°F | 62.6°F | 75.4°F | warm |
| Ocean water temperature in Sebastian in February | ||||
| March | 71.6°F | 65.1°F | 77.2°F | warm |
| Ocean water temperature in Sebastian in March | ||||
| April | 74.7°F | 69.4°F | 78.8°F | warm |
| Ocean water temperature in Sebastian in April | ||||
| May | 77.5°F | 72.5°F | 82.9°F | hot |
| Ocean water temperature in Sebastian in May | ||||
| June | 80.6°F | 74.8°F | 84.6°F | hot |
| Ocean water temperature in Sebastian in June | ||||
| July | 82°F | 75.4°F | 85.6°F | hot |
| Ocean water temperature in Sebastian in July | ||||
| August | 82.9°F | 77.5°F | 86.2°F | hot |
| Ocean water temperature in Sebastian in August | ||||
| September | 83.3°F | 81°F | 86.4°F | hot |
| Ocean water temperature in Sebastian in September | ||||
| October | 80.8°F | 75.6°F | 85.3°F | hot |
| Ocean water temperature in Sebastian in October | ||||
| November | 76.3°F | 69.8°F | 81.1°F | warm |
| Ocean water temperature in Sebastian in November | ||||
| December | 73.2°F | 65.5°F | 77.9°F | warm |
| Ocean water temperature in Sebastian in December | ||||
Chart monthly average water temperature in Sebastian
