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Water temperature in Shell Beach (CA) in May

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Is it warm enough to swim in Shell Beach in May? Average water temperature in Shell Beach in May is 53.4°F and therefore is not suitable for comfortable swimming. The warmest sea in Shell Beach in May is 57.7°F, and the coldest is 47.8°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Shell Beach

Changes water temperature in Shell Beach in May 2025, 2024

To get an accurate forecast for the water temperature in Shell 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 Shell Beach, 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 154.7°F51.1°F50.7°F56.3°F
May 254.3°F50.4°F50.2°F56.8°F
May 354.5°F50.7°F50.4°F56.1°F
May 453.8°F51.1°F50.5°F57.2°F
May 553.4°F51.3°F50.7°F56.3°F
May 654°F50.9°F50.9°F56.1°F
May 753.8°F51.4°F51.4°F55.9°F
May 854°F52°F50.9°F56.3°F
May 955.8°F53.1°F50.9°F56.3°F
May 1056.8°F54.3°F50.9°F56.8°F
May 1156.3°F55.4°F50.7°F57.4°F
May 1254.9°F55.6°F50.5°F57.4°F
May 1354.5°F54.9°F50.7°F57.7°F
May 1453.8°F54.9°F50.9°F57°F
May 1553.6°F55.4°F51.6°F56.8°F
Day 2025 2024 Min Max
May 1653.8°F55°F51.3°F57°F
May 1753.2°F55.2°F49.8°F55.8°F
May 1853.2°F55.6°F50.4°F56.1°F
May 1954°F55.6°F47.8°F55.6°F
May 2053.4°F55.2°F48.6°F56.1°F
May 2153.2°F55.9°F50°F55.9°F
May 2252.7°F57.4°F50.5°F57.4°F
May 2353.6°F56.1°F49.5°F56.1°F
May 2453.2°F55.8°F50°F55.8°F
May 2553.2°F55°F50.7°F55.6°F
May 2653.8°F54.9°F51.3°F55.9°F
May 2753.6°F55°F51.3°F56.5°F
May 2853.6°F53.8°F51.6°F56.1°F
May 2954.5°F55°F51.6°F56.3°F
May 3054.5°F54.1°F51.3°F56.7°F
May 3154.9°F55.2°F51.4°F57.6°F
Shell Beach water temp chart in May

Average water temperature in Shell Beach in May over a decade

20162017201820192020
54.5°F52.9°F53.1°F55.6°F54.5°F
20212022202320242025
53.8°F52.3°F52.3°F54.1°F54.1°F

Shell Beach sea state in May

Chart comparing the height of waves in Shell Beach 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 Shell Beach in May

Shell 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 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
Oceano53.4°F47.8°F57.7°F
Cambria53.1°F49.8°F57°F
Jalama Beach54.9°F50.5°F60.1°F
Gaviota56.3°F50.9°F61.2°F
Refugio Beach57°F51.6°F61.9°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 Shell 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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