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Water temperature in San Francisco (CA) in July

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Is it warm enough to swim in San Francisco in July? Average water temperature in San Francisco in July is 55.6°F and therefore is not suitable for comfortable swimming. The warmest sea in San Francisco in July is 62.6°F, and the coldest is 46.8°F. Average high air temperature in San Francisco in July is 67°F, and average low temperature is 54°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in San Francisco

Changes water temperature in San Francisco in July 2025, 2024

To get an accurate forecast for the water temperature in San Francisco 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 Francisco, 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 149.5°F52.2°F49.5°F57.4°F
July 249.8°F52.7°F49.8°F57°F
July 352°F53.4°F50.9°F57.7°F
July 452.9°F54.9°F51.4°F58.5°F
July 554.1°F54.5°F50.2°F59°F
July 655.2°F52.3°F48.2°F59.7°F
July 755.2°F54.1°F48.6°F61.2°F
July 854.7°F55.6°F49.5°F61.5°F
July 953.4°F53.2°F51.6°F61.2°F
July 1050.9°F52.9°F49.3°F61°F
July 1153.4°F55.6°F48.6°F61.9°F
July 1252.2°F57°F50.2°F61.9°F
July 1354.3°F57.4°F48.6°F62.4°F
July 1454.1°F57.2°F48.4°F61°F
July 1552°F58.3°F46.8°F60.3°F
Day 2025 2024 Min Max
July 1648.6°F57.2°F48.2°F60.8°F
July 1750°F57.2°F50°F61°F
July 1848.2°F55.6°F48.2°F61.2°F
July 1947.3°F57.4°F47.3°F62.1°F
July 2048.7°F57°F48.7°F62.2°F
July 2150.4°F55.6°F50.4°F61.7°F
July 2252.9°F53.8°F52.3°F61.7°F
July 2353.8°F55.4°F50.7°F62.6°F
July 2454.7°F57.2°F52.9°F62.4°F
July 2553.4°F57.7°F52.9°F61.3°F
July 2654.5°F55.8°F51.8°F62.1°F
July 2755.4°F56.3°F52.2°F61.9°F
July 2857.4°F57.6°F51.1°F61.9°F
July 2958.6°F57.6°F52.5°F62.1°F
July 3057.7°F56.7°F53.6°F62.4°F
July 3157°F57.2°F53.8°F62.4°F
San Francisco water temp chart in July

Average water temperature in San Francisco in July over a decade

20162017201820192020
55.6°F55.6°F57.2°F55.2°F53.8°F
20212022202320242025
52°F54.3°F54.5°F55.8°F53.1°F

San Francisco sea state in July

Chart comparing the height of waves in San Francisco 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 Francisco in July

Weather and climate in San Francisco in July

This data display average monthly climate indicators in San Francisco in July based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

  • Average HIGH temperature67°F
  • Average LOW temperature54°F
  • Average daylight14h
  • Average sunshine10.1h
  • Average UV index9

San Francisco 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
Farallon Islands55.2°F48.4°F62.4°F
Linda Mar57°F49.3°F62.8°F
Pacifica State Beach57°F49.3°F62.8°F
Pacifica58.1°F52.3°F62.8°F
Montara56.8°F49.3°F62.8°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 Francisco 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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