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Water temperature in County Line Beach (CA) in December

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Is it warm enough to swim in County Line Beach in December? Average water temperature in County Line Beach in December is 60.1°F and therefore is not suitable for comfortable swimming. The warmest sea in County Line Beach in December is 65.7°F, and the coldest is 55.9°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in County Line Beach

Changes water temperature in County Line Beach in December 2024, 2023

To get an accurate forecast for the water temperature in County Line 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 County Line Beach, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of December.

You can choose any other years:

Year 1:   Year 2:


Day 2024 2023 Min Max
December 159.4°F62.4°F55.9°F64.9°F
December 259°F62.8°F56.1°F65.3°F
December 358.6°F62.4°F56.5°F65.3°F
December 458.5°F62.2°F56.7°F65.5°F
December 558.1°F63.3°F56.8°F65.3°F
December 659°F63.3°F56.8°F65.5°F
December 758.6°F62.8°F56.5°F65.7°F
December 858.5°F62.4°F56.7°F65.5°F
December 958.6°F62.6°F56.7°F65.5°F
December 1059.4°F62.2°F56.7°F65.3°F
December 1159°F61.5°F56.5°F65.1°F
December 1259.5°F62.1°F56.1°F64.8°F
December 1358.3°F62.2°F57.4°F64.6°F
December 1457.9°F63°F57.2°F64.4°F
December 1557.6°F61.7°F57.2°F64.2°F
Day 2024 2023 Min Max
December 1657.6°F61.7°F57.4°F64.2°F
December 1757°F61.3°F57°F64°F
December 1857.2°F61.2°F57.2°F64°F
December 1958.1°F61.2°F57.7°F64°F
December 2057.9°F61.2°F57.6°F63.9°F
December 2158.3°F61°F57.9°F63.9°F
December 2257.7°F61.5°F57.7°F64.2°F
December 2357.9°F62.1°F57.6°F64.6°F
December 2457.9°F62.2°F57.7°F64.2°F
December 2558.3°F62.6°F57.7°F63.9°F
December 2658.1°F62.2°F57.2°F63.1°F
December 2757.7°F61.9°F57°F62.8°F
December 2857.4°F61.7°F56.7°F62.4°F
December 2958.1°F61.7°F56.7°F62.4°F
December 3058.5°F61.7°F56.8°F62.2°F
December 3157.7°F61.7°F56.3°F61.7°F
County Line Beach water temp chart in December

Average water temperature in County Line Beach in December over a decade

20152016201720182019
63.1°F59.5°F61.5°F61.9°F60.3°F
20202021202220232024
59.2°F59°F59.4°F62.1°F58.3°F

County Line Beach sea state in December

Chart comparing the height of waves in County Line Beach in December 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 County Line Beach in December

County Line 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 December?

Want to know where the water temperature in December 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 December

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

AvrMinMax
San Diego60.6°F56.3°F66°F
Santa Monica60.3°F55.6°F65.5°F
La Jolla Cove60.8°F56.3°F65.5°F
Lake Tahoe46.4°F42.3°F52°F
Los Angeles60.1°F55.2°F65.1°F
Carrillo Beach60.1°F55.9°F65.7°F
Point Mugu59.9°F55.8°F65.7°F
Paradise Cove Beach60.1°F55.8°F65.5°F
Point Dume60.3°F55.8°F65.7°F
Hollywood Beach59.5°F55°F65.7°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 County Line 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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