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Water temperature in San Simeon (CA) in August

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Is it warm enough to swim in San Simeon in August? Average water temperature in San Simeon in August is 58.3°F and therefore is not suitable for comfortable swimming. The warmest sea in San Simeon in August is 64.8°F, and the coldest is 51.1°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in San Simeon

Changes water temperature in San Simeon in August 2025, 2024

To get an accurate forecast for the water temperature in San Simeon 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 Simeon, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of August.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
August 157.6°F54°F54°F62.6°F
August 256.3°F55.8°F54.5°F63°F
August 355.6°F55.4°F54.9°F62.8°F
August 455°F55.6°F55°F63.3°F
August 554.7°F54.3°F54.3°F63°F
August 654.3°F55.4°F54°F62.6°F
August 754.1°F55.9°F54.1°F62.4°F
August 853.8°F56.1°F53.8°F62.4°F
August 954.1°F55.6°F54°F62.8°F
August 1053.4°F56.1°F51.1°F62.8°F
August 1154.7°F55.9°F52°F62.8°F
August 1256.8°F55.4°F52.7°F63°F
August 1357.2°F55.8°F55.4°F62.6°F
August 1455.9°F55.8°F55.6°F62.6°F
August 1555.6°F55°F53.8°F62.2°F
Day 2025 2024 Min Max
August 1655.6°F55°F53.1°F62.4°F
August 1757.7°F54.7°F53.8°F62.8°F
August 1857.2°F56.1°F55.2°F63.1°F
August 1956.5°F56.5°F54.7°F63.3°F
August 2057.4°F56.1°F54.1°F63.1°F
August 2157.2°F55°F54.7°F63°F
August 2256.1°F55.2°F54.5°F63.1°F
August 2356.5°F56.1°F55.6°F63.1°F
August 2458.1°F55.8°F54°F63.5°F
August 2556.8°F55.8°F54.9°F63.7°F
August 2657.2°F55.4°F55.4°F64.2°F
August 2758.5°F55.8°F55.8°F64.8°F
August 2858.5°F54.3°F54.3°F64.6°F
August 2959.9°F53.1°F53.1°F64.2°F
August 3058.8°F51.6°F51.6°F63.5°F
August 3160.1°F52.3°F52.3°F63.1°F
San Simeon water temp chart in August

Average water temperature in San Simeon in August over a decade

20162017201820192020
59.5°F59.4°F58.8°F56.3°F57.2°F
20212022202320242025
57.2°F55.9°F58.3°F55.2°F55°F

San Simeon sea state in August

Chart comparing the height of waves in San Simeon in August 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 Simeon in August

San Simeon 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 August?

Want to know where the water temperature in August 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 August

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

AvrMinMax
San Diego69.8°F62.6°F76.6°F
Santa Monica68.4°F60.8°F74.7°F
La Jolla Cove70.9°F63.5°F77.7°F
Lake Tahoe68°F63.9°F72°F
Los Angeles67.8°F62.2°F72.9°F
Ragged Point57.9°F51.4°F65.5°F
Gorda57.7°F51.6°F65.7°F
Los Osos58.5°F53.1°F63.3°F
Sand Dollar Beach57.7°F50.4°F65.5°F
Slates Hot Springs57.7°F51.6°F64.9°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 Simeon 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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