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Water temperature in San Onofre Beach (CA) in July

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Is it warm enough to swim in San Onofre Beach in July? Average water temperature in San Onofre Beach in July is 69.6°F and therefore suitable for comfortable swimming. The warmest sea in San Onofre Beach in July is 75.9°F, and the coldest is 63.7°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in San Onofre Beach

Changes water temperature in San Onofre Beach in July 2025, 2024

To get an accurate forecast for the water temperature in San Onofre Beach for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in San Onofre Beach, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of July.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
July 165.7°F69.8°F65.7°F72.1°F
July 263.7°F70°F63.7°F72°F
July 364.6°F70.7°F64.6°F71.8°F
July 465.8°F70.3°F64.9°F72.3°F
July 567.1°F70.3°F64°F72.3°F
July 667.6°F70.7°F63.9°F72.7°F
July 768.7°F72.1°F65.1°F73.2°F
July 867.1°F73.4°F66.2°F73.4°F
July 965.1°F73.6°F65.1°F73.6°F
July 1064.9°F73.2°F64.9°F73.4°F
July 1166.6°F72.1°F66.2°F72.7°F
July 1267.3°F71.1°F65.8°F73.9°F
July 1370.2°F70.7°F65.1°F73.6°F
July 1470.5°F70.2°F65.5°F74.1°F
July 1569.8°F70.5°F65.5°F74.8°F
Day 2025 2024 Min Max
July 1670.2°F69.3°F65.8°F75°F
July 1770°F69.8°F66°F74.8°F
July 1870.7°F70.3°F66°F74.5°F
July 1970.9°F70.3°F66°F74.1°F
July 2070.7°F68.9°F66.2°F74.5°F
July 2170.7°F68.5°F66°F74.5°F
July 2270.9°F68.7°F66.2°F74.1°F
July 2370.9°F70.5°F66.4°F74.3°F
July 2467.6°F70.7°F66.4°F73.9°F
July 2565.8°F69.1°F65.1°F74.5°F
July 2665.1°F68.2°F64.9°F75°F
July 2764.8°F68°F64.8°F75.6°F
July 2865.3°F67.3°F64.9°F75.7°F
July 2966°F66°F64.6°F75.9°F
July 3066.4°F65.5°F64.6°F75.9°F
July 3166.6°F66.4°F64.8°F75.9°F
San Onofre Beach water temp chart in July

Average water temperature in San Onofre Beach in July over a decade

20162017201820192020
73°F71.8°F72.9°F69.4°F70°F
20212022202320242025
69.6°F69.3°F68.7°F69.8°F67.6°F

San Onofre Beach sea state in July

Chart comparing the height of waves in San Onofre Beach in July over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Waves height in San Onofre Beach in July

San Onofre Beach water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Where is the warm sea water in July?

Want to know where the water temperature in July is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

Best Beach Resorts in California in July

Places with the warmest average sea water temperature in California in July. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Santa Monica67.6°F61.5°F72.5°F
La Jolla Cove70°F63.5°F76.5°F
Lake Tahoe66.2°F58.8°F73°F
Los Angeles66.6°F60.6°F71.8°F
Trestles Beach69.6°F63.7°F75.9°F
T-Street Beach69.6°F64.2°F75.9°F
Baby Beach69.6°F63.9°F75.6°F
Capistrano Beach69.6°F63.9°F75.6°F
Doheny Beach69.6°F63.9°F75.6°F

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for San Onofre Beach is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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