World sea water temperatures

Water temperature in Hercules (CA) in January

Is it warm enough to swim in Hercules in January? Average water temperature in Hercules in January is 51.4°F and therefore is not suitable for comfortable swimming. The warmest sea in Hercules in January is 55°F, and the coldest is 48.9°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 January 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 January.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
January 152.5°F55°F49.6°F55°F
January 252°F54.5°F49.8°F54.5°F
January 352.2°F54.5°F50°F54.5°F
January 452.2°F54.1°F49.8°F54.1°F
January 552.2°F54°F50°F54°F
January 652.3°F53.6°F50.2°F53.8°F
January 752.3°F53.6°F50.2°F53.6°F
January 852.5°F53.4°F49.8°F53.6°F
January 952.5°F53.4°F50°F53.8°F
January 1052.2°F53.2°F49.5°F53.8°F
January 1152.2°F52.9°F49.8°F53.8°F
January 1251.8°F52.7°F49.8°F53.2°F
January 1352°F52.7°F50.2°F53.2°F
January 1451.4°F52.7°F50.2°F53.2°F
January 1551.8°F52.7°F49.8°F53.4°F
Day 2025 2024 Min Max
January 1651.8°F52.7°F49.5°F53.8°F
January 1751.8°F52.7°F49.5°F53.8°F
January 1851.4°F52.5°F50°F54.1°F
January 1951.4°F52.5°F49.8°F54.3°F
January 2052.2°F52.3°F50°F54°F
January 2150.9°F52.3°F50°F54.1°F
January 2250°F52.9°F50°F54°F
January 2350.9°F53.1°F50°F54.1°F
January 2451.1°F53.1°F49.8°F54.5°F
January 2550.4°F53.4°F49.1°F54.9°F
January 2650.7°F53.4°F50.4°F54.7°F
January 2750.9°F53.2°F49.3°F54.9°F
January 2851.1°F53.8°F49.8°F54.3°F
January 2950.4°F53.6°F49.8°F54.5°F
January 3050.7°F53.4°F49.8°F54.7°F
January 3150.9°F53.6°F48.9°F54.7°F
Hercules water temp chart in January

Average water temperature in Hercules in January over a decade

20162017201820192020
52.3°F50.7°F52.7°F52.2°F52.2°F
20212022202320242025
51.8°F51.3°F50.5°F53.2°F51.6°F

Hercules sea state in January

Chart comparing the height of waves in Hercules in January 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 January

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 January?

Want to know where the water temperature in January 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 January

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

AvrMinMax
San Diego59°F55.9°F62.4°F
Santa Monica58.6°F54.7°F62.2°F
La Jolla Cove59°F55.4°F62.1°F
Lake Tahoe43°F40.1°F45.7°F
Los Angeles58.5°F54.5°F62.4°F
Pinole51.4°F48.9°F55°F
Rodeo51.4°F48.9°F55°F
Montalvin51.6°F48.7°F55°F
San Pablo Bay51.6°F48.7°F55°F
China Camp51.6°F48.6°F55°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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