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Water temperature in San Nicolas Island (CA) in July

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Is it warm enough to swim in San Nicolas Island in July? Average water temperature in San Nicolas Island in July is 63.5°F and therefore is not suitable for comfortable swimming. The warmest sea in San Nicolas Island in July is 69.1°F, and the coldest is 57.6°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 July 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 July.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
July 157.6°F61°F57.6°F63.5°F
July 258.3°F61.2°F57.7°F64°F
July 358.5°F61.5°F57.9°F64.2°F
July 459.5°F61.9°F58.3°F64.6°F
July 561.5°F61.5°F58.6°F64.9°F
July 661.9°F62.6°F59.2°F65.8°F
July 762.1°F62.8°F59.2°F66.6°F
July 862.1°F63.1°F59.4°F66.4°F
July 962.4°F63.1°F59°F66.2°F
July 1061.9°F62.2°F59.7°F66°F
July 1162.4°F61.5°F60.3°F66.6°F
July 1262.4°F61.7°F59.7°F66.2°F
July 1362.6°F62.2°F60.3°F66.7°F
July 1462.2°F64°F60.6°F65.8°F
July 1561.7°F65.1°F60.8°F65.1°F
Day 2025 2024 Min Max
July 1662.1°F63.5°F61.2°F66.7°F
July 1762.1°F62.4°F61°F67.6°F
July 1862.6°F63.3°F61.9°F68.4°F
July 1962.8°F64°F62.1°F67.8°F
July 2063°F62.8°F61.9°F67.6°F
July 2163.3°F61.5°F61.5°F69.1°F
July 2262.8°F60.6°F60.6°F68.7°F
July 2361.7°F61.3°F61.3°F69.1°F
July 2461.9°F62.2°F61.9°F68.7°F
July 2561.2°F63°F61.2°F68.2°F
July 2662.2°F63.3°F61.9°F68.2°F
July 2762.6°F62.6°F62.4°F68.4°F
July 2863°F61.7°F61.5°F68.4°F
July 2962.2°F63.1°F61.7°F68.4°F
July 3062.1°F63°F61.9°F68.5°F
July 3162.6°F63.7°F62.2°F69.1°F
San Nicolas Island water temp chart in July

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

20162017201820192020
64.6°F64.4°F64.8°F62.6°F63.5°F
20212022202320242025
65.1°F63.1°F62.1°F62.4°F61.7°F

San Nicolas Island sea state in July

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

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 July?

Want to know where the water temperature in July 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 July

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

AvrMinMax
San Diego68.5°F62.8°F74.8°F
Santa Monica67.6°F61.5°F72.5°F
La Jolla Cove70°F63.5°F76.5°F
Lake Tahoe66.2°F58.8°F73°F
Los Angeles66.6°F60.6°F71.8°F
Santa Barbara Island66.7°F61.2°F71.8°F
Cortes Bank64°F57.6°F69.8°F
Santa Cruz Island65.7°F60.4°F71.4°F
Arrow Point68.4°F62.4°F73.8°F
Anacapa Island66.2°F60.8°F71.4°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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