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Water temperature in Glass Beach (CA) in May

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Is it warm enough to swim in Glass Beach in May? Average water temperature in Glass Beach in May is 50.5°F and therefore is not suitable for comfortable swimming. The warmest sea in Glass Beach in May is 56.1°F, and the coldest is 45.7°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Glass Beach

Changes water temperature in Glass Beach in May 2025, 2024

To get an accurate forecast for the water temperature in Glass 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 Glass 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 149.5°F48.4°F48.4°F56.1°F
May 249.8°F47.5°F47.5°F55.9°F
May 348.9°F48.4°F48.4°F55.2°F
May 448.7°F49.3°F48.7°F55.2°F
May 548.4°F49.3°F48°F55.8°F
May 648°F49.3°F48°F54.5°F
May 748.2°F49.1°F48°F53.8°F
May 848.7°F49.1°F46.8°F53.1°F
May 948.7°F48.6°F46.9°F52.9°F
May 1048.7°F49.3°F47.1°F52.9°F
May 1149.6°F50.5°F48°F53.1°F
May 1250°F50.9°F48.4°F53.2°F
May 1350.9°F51.3°F48.6°F53.8°F
May 1450.4°F51.1°F48.6°F54.1°F
May 1550°F49.1°F48.9°F54.9°F
Day 2025 2024 Min Max
May 1650°F47.5°F47.5°F54.1°F
May 1750.9°F45.7°F45.7°F54.3°F
May 1849.6°F47.1°F47.1°F55.4°F
May 1948.7°F50°F48.6°F55.8°F
May 2049.1°F48.4°F48.2°F55.2°F
May 2148.9°F48.4°F47.7°F54.9°F
May 2248.6°F48.6°F48°F54°F
May 2349.1°F47.7°F47.7°F54°F
May 2449.3°F47.7°F47.7°F53.6°F
May 2549.6°F47.7°F47.7°F53.4°F
May 2650.5°F48.9°F48°F52.2°F
May 2750.9°F48.7°F48.7°F51.8°F
May 2850.4°F48.7°F48.7°F52.5°F
May 2951.1°F47.8°F47.8°F52.3°F
May 3052.2°F48.7°F48.7°F52.2°F
May 3153.1°F48.2°F48.2°F53.1°F
Glass Beach water temp chart in May

Average water temperature in Glass Beach in May over a decade

20162017201820192020
52.3°F50.4°F51.3°F52.3°F52.5°F
20212022202320242025
49.1°F50.2°F51.3°F48.7°F49.6°F

Glass Beach sea state in May

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

Glass 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
Shelter Cove50.5°F46.4°F55.8°F
Gualala49.8°F45.5°F55.6°F
Sea Ranch49.8°F46°F55.8°F
Lakeport66°F59.2°F72.3°F
Clear Lake66°F59.2°F72.3°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 Glass 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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