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Water temperature in Opal Cliffs (CA) in May

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Is it warm enough to swim in Opal Cliffs in May? Average water temperature in Opal Cliffs in May is 54°F and therefore is not suitable for comfortable swimming. The warmest sea in Opal Cliffs in May is 63°F, and the coldest is 49.3°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Opal Cliffs

Changes water temperature in Opal Cliffs in May 2025, 2024

To get an accurate forecast for the water temperature in Opal Cliffs for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Opal Cliffs, 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 158.1°F55.8°F50.2°F58.1°F
May 257.7°F55.8°F50°F57.7°F
May 357°F55.8°F50°F57°F
May 455.9°F54.9°F49.8°F57.4°F
May 555.6°F54.9°F49.5°F57°F
May 656.3°F53.8°F49.8°F56.5°F
May 757°F54.3°F49.5°F57°F
May 857°F55°F49.3°F57°F
May 957.9°F55.8°F49.5°F57.9°F
May 1058.5°F55.9°F49.8°F58.5°F
May 1158.3°F55.6°F50°F58.8°F
May 1257.7°F54.9°F50°F58.8°F
May 1357.9°F54.5°F50°F58.6°F
May 1458.3°F54.5°F50.5°F58.3°F
May 1558.1°F55.2°F50.7°F58.3°F
Day 2025 2024 Min Max
May 1658.5°F55.4°F51.3°F58.8°F
May 1756.5°F54.5°F51.6°F58.8°F
May 1856.7°F55.4°F51.8°F59.4°F
May 1957°F55.8°F51.4°F59.2°F
May 2056.7°F56.8°F50.9°F59.7°F
May 2155.4°F57°F50.4°F60.4°F
May 2256.7°F56.1°F50.2°F60.3°F
May 2357.6°F57°F50.2°F59.4°F
May 2456.3°F56.5°F50.2°F59.4°F
May 2556.8°F56.1°F49.8°F58.6°F
May 2656.5°F54.5°F50°F61.3°F
May 2755.4°F55.9°F50.2°F63°F
May 2856.8°F57.2°F50.5°F61.2°F
May 2956.7°F56.8°F50.4°F60.3°F
May 3056.5°F56.7°F50.2°F58.8°F
May 3156.5°F56.8°F50.7°F58.5°F
Opal Cliffs water temp chart in May

Average water temperature in Opal Cliffs in May over a decade

20162017201820192020
54.5°F53.8°F54.1°F57.2°F57.9°F
20212022202320242025
55.2°F54.3°F56.8°F55.6°F57°F

Opal Cliffs sea state in May

Chart comparing the height of waves in Opal Cliffs 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 Opal Cliffs in May

Opal Cliffs 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
Rio Del Mar54.1°F49.3°F63.1°F
Seacliff54.1°F49.3°F63.1°F
Twin Lakes53.8°F49.3°F62.2°F
Seabright Beach53.4°F49.3°F61.2°F
Steamer Lane53.4°F49.3°F61.2°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 Opal Cliffs 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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