This data the coastal Corona Del Mar 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.
Water temperature in Corona Del Mar today is 70.7°F. Based on our historical data over a period of ten years, the warmest water in this day in Corona Del Mar was recorded in 2014 and was 73.8°F, and the coldest was recorded in 2011 at 63.7°F. Sea water temperature in Corona Del Mar is expected to drop to 69.3°F in the next 10 days. September average water temperature in Corona Del Mar is 69.3°F, the minimum temperature is 62.8°F, and the maximum is 75.6°F.
The swimming season in Corona Del Mar lasts from July to October. During those months, Corona Del Mar water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Corona Del Mar in winter reaches 59.5°F, in spring 60.6°F, in summer the average temperature rises to 68.2°F, and in autumn it is 66.7°F.
September 5, 2025 |
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today temp |
70.7°F |
September 4, 2025 |
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yesterday temp |
71.1°F |
The ocean salinity in Corona Del Mar is 32.85‰, and the average salinity of the World Ocean is 35‰.
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 Corona Del Mar. 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 Corona Del Mar. Data in table shown for September 5, 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 |
---|---|---|---|
3' 0" | 3' 0" | 3' 0" | 3' 1" |
0.92 m | 0.91 m | 0.91 m | 0.94 m |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
3' 1" | 3' 1" | 3' 1" | 3' 2" |
0.95 m | 0.95 m | 0.93 m | 0.97 m |
Data in a table show Corona Del Mar temperature today (September 5, 2025). For more information and forecast for a few days, go to the weather forecast Corona Del Mar.
0-3 h | 3-6 h | 6-9 h | 9-12 h |
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![]() | ![]() | ![]() | ![]() |
65.8°F | 65.1°F | 64.8°F | 71.2°F |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
![]() | ![]() | ![]() | ![]() |
75.4°F | 75.4°F | 71.1°F | 66.4°F |
You may also be interested in other sections of our site for Corona Del Mar: Sunrise and Sunset, Tides
These figures shows the average, minimum and maximum monthly sea temperature in Corona Del Mar. 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 Corona Del Mar 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°F | 55.6°F | 62.1°F | cold |
Ocean water temperature in Corona Del Mar in January | ||||
February | 58.8°F | 55°F | 63°F | cold |
Ocean water temperature in Corona Del Mar in February | ||||
March | 58.8°F | 53.6°F | 65.3°F | cold |
Ocean water temperature in Corona Del Mar in March | ||||
April | 60.1°F | 54°F | 64°F | cold |
Ocean water temperature in Corona Del Mar in April | ||||
May | 63°F | 57.9°F | 68.7°F | cold |
Ocean water temperature in Corona Del Mar in May | ||||
June | 65.8°F | 59.2°F | 71.2°F | cold |
Ocean water temperature in Corona Del Mar in June | ||||
July | 68.9°F | 61.7°F | 75.2°F | warm |
Ocean water temperature in Corona Del Mar in July | ||||
August | 69.6°F | 61.3°F | 76.5°F | warm |
Ocean water temperature in Corona Del Mar in August | ||||
September | 69.3°F | 62.8°F | 75.6°F | warm |
Ocean water temperature in Corona Del Mar in September | ||||
October | 67.3°F | 61°F | 74.1°F | cold |
Ocean water temperature in Corona Del Mar in October | ||||
November | 63.7°F | 56.5°F | 70.3°F | cold |
Ocean water temperature in Corona Del Mar in November | ||||
December | 60.8°F | 56.7°F | 65.5°F | cold |
Ocean water temperature in Corona Del Mar in December |