Orange County water temp
This data the coastal Orange County 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 Orange County
Water temperature in Orange County today is 66.4°F. Based on our historical data over a period of ten years, the warmest water in this day in Orange County was recorded in 2015 and was 74.5°F, and the coldest was recorded in 2024 at 65.5°F. Sea water temperature in Orange County is expected to rise to 68.4°F in the next 10 days. September average water temperature in Orange County is 69.6°F, the minimum temperature is 63.3°F, and the maximum is 75.9°F.
The swimming season in Orange County lasts from July to October. During those months, Orange County water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Orange County in winter reaches 59.7°F, in spring 60.6°F, in summer the average temperature rises to 68.2°F, and in autumn it is 66.9°F.
Orange County water temperature now
| September 26, 2025 |
|---|
| today temp |
| 66.4°F |
| September 25, 2025 |
|---|
| yesterday temp |
| 67.6°F |
The ocean salinity in Orange County is 32.87‰, and the average salinity of the World Ocean is 35‰.
Surf Forecast in Orange County 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 Orange County. 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 Orange County. Data in table shown for September 26, 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' 5" | 2' 6" |
| 0.8 m | 0.76 m | 0.73 m | 0.77 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 2' 9" | 2' 8" | 2' 7" | 2' 6" |
| 0.84 m | 0.82 m | 0.78 m | 0.76 m |
Surf report in Orange County
Orange County weather forecast
Current temperature and weather
Data in a table show Orange County temperature today (September 26, 2025). For more information and forecast for a few days, go to the weather forecast Orange County.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 |  | | |
| 64°F | 64.6°F | 64.8°F | 66.4°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| | | |
| 66.7°F | 66.4°F | 64.8°F | 63.9°F |
You may also be interested in other sections of our site for Orange County: Sunrise and Sunset, Tides
Orange County water temperature by month
These figures shows the average, minimum and maximum monthly sea temperature in Orange County. 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 Orange County 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 | 59.2°F | 55.6°F | 62.2°F | cold |
| Ocean water temperature in Orange County in January | ||||
| February | 58.8°F | 54.9°F | 63.1°F | cold |
| Ocean water temperature in Orange County in February | ||||
| March | 59°F | 53.8°F | 65.5°F | cold |
| Ocean water temperature in Orange County in March | ||||
| April | 60.1°F | 54°F | 64.2°F | cold |
| Ocean water temperature in Orange County in April | ||||
| May | 63°F | 57.9°F | 68.5°F | cold |
| Ocean water temperature in Orange County in May | ||||
| June | 65.8°F | 59.4°F | 71.1°F | cold |
| Ocean water temperature in Orange County in June | ||||
| July | 69.1°F | 62.4°F | 75.2°F | warm |
| Ocean water temperature in Orange County in July | ||||
| August | 69.8°F | 61.3°F | 77°F | warm |
| Ocean water temperature in Orange County in August | ||||
| September | 69.6°F | 63.3°F | 75.9°F | warm |
| Ocean water temperature in Orange County in September | ||||
| October | 67.5°F | 62.1°F | 74.3°F | cold |
| Ocean water temperature in Orange County in October | ||||
| November | 63.9°F | 56.5°F | 70.5°F | cold |
| Ocean water temperature in Orange County in November | ||||
| December | 61°F | 56.8°F | 65.5°F | cold |
| Ocean water temperature in Orange County in December | ||||
Chart monthly average water temperature in Orange County
