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Water temperature in San Simeon (CA) in May

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Is it warm enough to swim in San Simeon in May? Average water temperature in San Simeon in May is 52.9°F and therefore is not suitable for comfortable swimming. The warmest sea in San Simeon in May is 56.7°F, and the coldest is 49.5°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 May 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 May.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
May 152.9°F50.5°F49.8°F55.6°F
May 253.2°F49.8°F49.6°F55.8°F
May 353.1°F50.7°F50.2°F55.8°F
May 452.2°F51.3°F50.2°F55°F
May 552°F50.7°F50°F54.7°F
May 653.1°F49.8°F49.8°F55.2°F
May 754.1°F50.9°F50.7°F55.4°F
May 853.8°F51.6°F50.4°F56.1°F
May 952.3°F52.5°F49.6°F56.3°F
May 1053.6°F52.9°F49.8°F55.9°F
May 1153.6°F53.2°F49.6°F56.3°F
May 1253.4°F53.2°F49.8°F56.1°F
May 1353.2°F53.4°F50.2°F56.1°F
May 1452.5°F53.4°F50.2°F56.7°F
May 1552.7°F53.6°F50.4°F56.5°F
Day 2025 2024 Min Max
May 1652.7°F53.6°F49.5°F55.8°F
May 1753.1°F53.6°F49.8°F55.4°F
May 1852°F53.8°F49.8°F55.9°F
May 1953.1°F54.3°F50.4°F55.8°F
May 2052.7°F54.5°F50.7°F55°F
May 2152.3°F54.1°F50.4°F55.2°F
May 2252°F52.3°F49.8°F55.4°F
May 2351.4°F53.4°F50.5°F55°F
May 2451.3°F52.7°F50.9°F55.2°F
May 2552°F52.3°F50.4°F55.8°F
May 2651.1°F52.5°F50.4°F55.6°F
May 2751.4°F52.9°F50.9°F55.9°F
May 2852.7°F53.1°F51.3°F55.2°F
May 2952.3°F52.2°F51.1°F55.9°F
May 3053.1°F52.9°F51.1°F55.9°F
May 3154.1°F53.1°F51.4°F56.1°F
San Simeon water temp chart in May

Average water temperature in San Simeon in May over a decade

20162017201820192020
55.4°F53.1°F52.5°F54°F53.1°F
20212022202320242025
52°F51.1°F53.1°F52.5°F52.7°F

San Simeon sea state in May

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

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 May?

Want to know where the water temperature in May 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 May

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

AvrMinMax
San Diego63°F57.4°F68°F
Santa Monica61.3°F55.9°F68.4°F
La Jolla Cove64°F58.1°F69.6°F
Lake Tahoe50.7°F43.9°F59°F
Los Angeles60.8°F56.5°F65.1°F
Ragged Point52.7°F47.7°F57.2°F
Gorda52.5°F48.6°F56.8°F
Los Osos53.8°F50.5°F57.4°F
Sand Dollar Beach52.7°F48.2°F57.2°F
Slates Hot Springs52.5°F48.9°F56.5°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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