World sea water temperatures

Water temperature in Hercules (CA) in August

Is it warm enough to swim in Hercules in August? Average water temperature in Hercules in August is 62.1°F and therefore is not suitable for comfortable swimming. The warmest sea in Hercules in August is 71.2°F, and the coldest is 54.3°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Hercules

Changes water temperature in Hercules in August 2025, 2024

To get an accurate forecast for the water temperature in Hercules for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Hercules, 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 165.7°F66.4°F54.3°F66.9°F
August 266.6°F66.6°F54.7°F66.9°F
August 365.1°F69.1°F55.2°F69.1°F
August 465.7°F67.3°F55.6°F67.8°F
August 566°F67.1°F55.6°F67.6°F
August 667.1°F66.6°F55.9°F67.1°F
August 767.1°F68°F56.1°F68°F
August 866.7°F68.9°F56.1°F68.9°F
August 967.5°F68°F56.3°F68°F
August 1067.6°F67.5°F56.3°F67.6°F
August 1167.3°F67.3°F56.3°F68°F
August 1267.3°F66.4°F56.3°F69.1°F
August 1366.6°F65.5°F56.3°F68.7°F
August 1468.5°F66.2°F56.1°F68.5°F
August 1568°F65.7°F56.3°F69.6°F
Day 2025 2024 Min Max
August 1667.3°F66°F56.5°F70.3°F
August 1767.1°F66.9°F55.9°F70.2°F
August 1868°F66.9°F56.5°F69.3°F
August 1968°F66.4°F56.5°F68.9°F
August 2068.2°F66°F56.5°F71.2°F
August 2168.2°F66.7°F56.3°F70.7°F
August 2268.7°F66.7°F56.1°F71.2°F
August 2368.2°F65.5°F55.8°F70.5°F
August 2467.6°F64.8°F56.1°F71.1°F
August 2568.9°F65.3°F56.3°F70.3°F
August 2667.8°F66.4°F56.5°F70°F
August 2767.8°F66.9°F56.8°F70°F
August 2867.3°F68°F56.3°F70°F
August 2968.4°F65.8°F56.3°F69.3°F
August 3067.1°F67.1°F56.5°F69.1°F
August 3168.4°F67.1°F56.5°F69.3°F
Hercules water temp chart in August

Average water temperature in Hercules in August over a decade

20162017201820192020
59.5°F65.3°F64.8°F68.4°F67.8°F
20212022202320242025
66.9°F67.3°F67.1°F66.7°F66.4°F

Hercules sea state in August

Chart comparing the height of waves in Hercules 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 Hercules in August

Hercules 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
Pinole62.1°F54.3°F71.2°F
Rodeo62.1°F54.3°F71.2°F
Montalvin62.2°F54.3°F72°F
San Pablo Bay62.2°F54.3°F72°F
China Camp62.1°F54.3°F72.1°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 Hercules 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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