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Water temperature in San Nicolas Island (CA) in August

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Is it warm enough to swim in San Nicolas Island in August? Average water temperature in San Nicolas Island in August is 65.1°F and therefore is not suitable for comfortable swimming. The warmest sea in San Nicolas Island in August is 71.4°F, and the coldest is 59.7°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in San Nicolas Island

Changes water temperature in San Nicolas Island in August 2025, 2024

To get an accurate forecast for the water temperature in San Nicolas Island 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 Nicolas Island, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of August.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
August 162.4°F64°F62.4°F68.4°F
August 262.8°F63.5°F62.1°F68°F
August 361.5°F63.5°F61.5°F68.4°F
August 461.9°F63.5°F61.9°F68.2°F
August 562.4°F62.8°F61.7°F68°F
August 661.7°F62.6°F60.6°F68.2°F
August 762.2°F63°F60.1°F69.3°F
August 861.9°F63.3°F60.3°F69.4°F
August 961.3°F64°F61.3°F69.8°F
August 1061°F64.4°F61°F70.9°F
August 1161.2°F64.4°F61.2°F71.4°F
August 1261.5°F64.9°F60.8°F70.9°F
August 1361.3°F66.6°F61.2°F70.3°F
August 1461°F66.2°F60.8°F69.6°F
August 1561.3°F65.5°F60.8°F69.6°F
Day 2025 2024 Min Max
August 1661°F64.6°F59.7°F69.8°F
August 1760.3°F65.7°F60.1°F70.2°F
August 1859.9°F64.4°F59.9°F70.5°F
August 1961°F64.4°F61°F69.8°F
August 2061°F64.6°F61°F69.8°F
August 2162.4°F63.9°F61.7°F69.6°F
August 2263.3°F63.9°F61.7°F69.3°F
August 2363.9°F64°F61.9°F69.4°F
August 2463.1°F64.2°F62.6°F68.2°F
August 2562.2°F64°F62.2°F68.2°F
August 2661.9°F63.9°F61.9°F68.4°F
August 2762.1°F63.7°F62.1°F69.1°F
August 2863.7°F64°F62.4°F69.3°F
August 2963.9°F64.2°F61.7°F69.4°F
August 3063.5°F64.8°F61.9°F68.5°F
August 3163.3°F65.5°F61.5°F68.7°F
San Nicolas Island water temp chart in August

Average water temperature in San Nicolas Island in August over a decade

20162017201820192020
66.9°F65.3°F68.7°F63.7°F65.1°F
20212022202320242025
66.6°F65.8°F65.3°F64.2°F62.1°F

San Nicolas Island sea state in August

Chart comparing the height of waves in San Nicolas Island in August 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 Nicolas Island in August

San Nicolas Island 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 August?

Want to know where the water temperature in August 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 August

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

AvrMinMax
San Diego69.8°F62.6°F76.6°F
Santa Monica68.4°F60.8°F74.7°F
La Jolla Cove70.9°F63.5°F77.7°F
Lake Tahoe68°F63.9°F72°F
Los Angeles67.8°F62.2°F72.9°F
Santa Barbara Island68°F62.6°F72.5°F
Cortes Bank66.2°F61.2°F73.6°F
Santa Cruz Island66.4°F59.7°F72.5°F
Arrow Point70°F64.9°F74.7°F
Anacapa Island67.1°F59.9°F73.6°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 Nicolas Island 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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