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Water temperature in Jacksonville (FL) in July

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Is it warm enough to swim in Jacksonville in July? Average water temperature in Jacksonville in July is 82°F and therefore suitable for comfortable swimming. The warmest sea in Jacksonville in July is 86.5°F, and the coldest is 76.8°F. Average high air temperature in Jacksonville in July is 92°F, and average low temperature is 73°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Jacksonville

Changes water temperature in Jacksonville in July 2025, 2024

To get an accurate forecast for the water temperature in Jacksonville for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Jacksonville, 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 178.8°F85.3°F78.8°F85.3°F
July 278.8°F84.6°F78.4°F84.6°F
July 379°F85.1°F78.3°F85.1°F
July 478.3°F85.3°F78.3°F85.3°F
July 576.8°F86°F76.8°F86°F
July 677.9°F85.8°F77.9°F85.8°F
July 779°F85.5°F79°F85.6°F
July 879°F85.5°F79°F86°F
July 979.7°F84°F79°F86°F
July 1079.7°F85.1°F79°F86°F
July 1180.1°F84.6°F78.6°F86°F
July 1280.1°F84.4°F78.6°F85.8°F
July 1379.7°F84°F78.8°F85.8°F
July 1479.9°F84.6°F78.3°F85.8°F
July 1579.9°F83.8°F78.6°F85.6°F
Day 2025 2024 Min Max
July 1679.7°F83.8°F79°F85.5°F
July 1780.2°F82.9°F79.3°F85.1°F
July 1880.6°F82.4°F79.7°F85.5°F
July 1981.3°F81.7°F79.7°F85.5°F
July 2082°F81.7°F79.9°F85.6°F
July 2181.7°F81.9°F80.1°F86°F
July 2281.9°F81.7°F80.2°F86°F
July 2382°F81.9°F79.7°F86.5°F
July 2482.6°F81.9°F79.7°F86.5°F
July 2582.9°F82°F79.5°F85.8°F
July 2682.9°F82°F79.2°F85.6°F
July 2784.4°F81.9°F79.5°F85.8°F
July 2885.1°F82°F80.1°F85.5°F
July 2984.9°F82.2°F80.1°F85.5°F
July 3084.9°F82.4°F79.7°F85.1°F
July 3184.7°F82.2°F79°F84.9°F
Jacksonville water temp chart in July

Average water temperature in Jacksonville in July over a decade

20162017201820192020
85.5°F80.8°F82.9°F82°F84°F
20212022202320242025
81.9°F84°F83.3°F83.5°F81°F

Jacksonville sea state in July

Chart comparing the height of waves in Jacksonville 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 Jacksonville in July

Weather and climate in Jacksonville in July

This data display average monthly climate indicators in Jacksonville 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 temperature92°F
  • Average LOW temperature73°F
  • Average humidity
    78
  • Average rainfall days14 days
  • Average rainfall168mm/6.6''
  • Average daylight14h
  • Average sunshine9.1h
  • Average UV index11

Jacksonville 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 Florida in July

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

AvrMinMax
Sarasota86.4°F83.7°F89.1°F
Key West86°F82.6°F89.8°F
Naples86.5°F83.7°F89.8°F
Miami Beach85.5°F82.4°F88.5°F
Fort Myers Beach86.4°F83.3°F90°F
Destin84.6°F81.3°F88.3°F
Fort Lauderdale85.3°F82.8°F88.5°F
Key Largo85.8°F82.6°F89.4°F
Cocoa Beach81.9°F74.7°F86°F
Clearwater Beach86.4°F83.5°F89.2°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 Jacksonville 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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