Katama Beach water temp
This data the coastal Katama Beach 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 Katama Beach
Water temperature in Katama Beach today is 66.4°F. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near Katama Beach was recorded in 2021 and was 68°F, and the coldest was recorded in 2024 at 61.2°F. Sea water temperature in Katama Beach is expected to drop to 63.5°F in the next 10 days. September average water temperature in Katama Beach is 66.7°F, the minimum temperature is 60.4°F, and the maximum is 72.1°F.
The swimming season in Katama Beach lasts from July to September. During those months, Katama Beach water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Katama Beach in winter reaches 41.5°F, in spring 45.5°F, in summer the average temperature rises to 66.2°F, and in autumn it is 60.6°F.
Katama Beach water temperature now
| September 25, 2025 |
|---|
| today temp |
| 66.4°F |
| September 24, 2025 |
|---|
| yesterday temp |
| 65.8°F |
The ocean salinity in Katama Beach is 31.44‰, and the average salinity of the World Ocean is 35‰.
Surf Forecast in Katama Beach 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 Katama Beach. 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 Katama Beach. Data in table shown for September 25, 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' 7" | 2' 6" | 2' 6" | 2' 6" |
| 0.8 m | 0.77 m | 0.76 m | 0.77 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 2' 9" | 3' 0" | 3' 4" | 3' 10" |
| 0.83 m | 0.92 m | 1.02 m | 1.16 m |
Surf report in Katama Beach
Katama Beach weather forecast
Current temperature and weather
Data in a table show Katama Beach temperature today (September 25, 2025). For more information and forecast for a few days, go to the weather forecast Katama Beach.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 | | | |
| 64.6°F | 64.6°F | 65.1°F | 67.6°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
 | | | |
| 68.9°F | 70°F | 70.5°F | 70.2°F |
You may also be interested in other sections of our site for Katama Beach: Sunrise and Sunset, Tides
Katama Beach water temperature by month
These figures shows the average, minimum and maximum monthly sea temperature in Katama Beach. 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 Katama Beach 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 | 40.6°F | 35.1°F | 47.3°F | cold |
| Ocean water temperature in Katama Beach in January | ||||
| February | 37.8°F | 30.7°F | 43°F | cold |
| Ocean water temperature in Katama Beach in February | ||||
| March | 39.4°F | 31.3°F | 47.5°F | cold |
| Ocean water temperature in Katama Beach in March | ||||
| April | 45°F | 36°F | 51.6°F | cold |
| Ocean water temperature in Katama Beach in April | ||||
| May | 52.3°F | 46.2°F | 62.8°F | cold |
| Ocean water temperature in Katama Beach in May | ||||
| June | 60.6°F | 54.1°F | 68.2°F | cold |
| Ocean water temperature in Katama Beach in June | ||||
| July | 68.2°F | 61.5°F | 73.6°F | warm |
| Ocean water temperature in Katama Beach in July | ||||
| August | 69.8°F | 64.8°F | 75.4°F | warm |
| Ocean water temperature in Katama Beach in August | ||||
| September | 66.7°F | 60.4°F | 72.1°F | cold |
| Ocean water temperature in Katama Beach in September | ||||
| October | 61.3°F | 54.5°F | 67.1°F | cold |
| Ocean water temperature in Katama Beach in October | ||||
| November | 54°F | 46.8°F | 61°F | cold |
| Ocean water temperature in Katama Beach in November | ||||
| December | 46.2°F | 40.6°F | 52.5°F | cold |
| Ocean water temperature in Katama Beach in December | ||||
Chart monthly average water temperature in Katama Beach
