World sea water temperatures

Water temperature in Detroit (MI) in July

Is it warm enough to swim in Detroit in July? Average water temperature in Detroit in July is 73.4°F and therefore suitable for comfortable swimming. The warmest water in Detroit in July is 78.8°F, and the coldest is 65.3°F. Average high air temperature in Detroit in July is 83°F, and average low temperature is 64°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Detroit

Changes water temperature in Detroit in July 2025, 2024

To get an accurate forecast for the water temperature in Detroit for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Detroit, 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 176.5°F68.4°F65.3°F76.5°F
July 275°F69.4°F66°F75°F
July 375.4°F70°F66°F75.4°F
July 474.3°F69.8°F68.4°F75°F
July 575.2°F70.7°F68°F75.4°F
July 676.5°F71.1°F68.2°F76.5°F
July 777.7°F70°F70°F77.7°F
July 875.4°F71.1°F67.5°F77.5°F
July 976.1°F72.3°F67.5°F76.5°F
July 1074.3°F72.7°F68.9°F77.5°F
July 1175.4°F71.8°F69.1°F76.3°F
July 1275.4°F72°F68.5°F76.6°F
July 1375.4°F73.4°F69.6°F75.9°F
July 1476.6°F75°F69.8°F76.6°F
July 1575.4°F74.8°F70.2°F76.5°F
Day 2025 2024 Min Max
July 1677.2°F74.7°F69.6°F77.2°F
July 1776.8°F74.3°F69.6°F78.1°F
July 1875.2°F74.3°F70°F78.8°F
July 1973.6°F73.4°F69.4°F77.9°F
July 2073.9°F73.9°F70.2°F77.9°F
July 2173.6°F74.5°F72.3°F77.5°F
July 2273.6°F74.5°F71.6°F77°F
July 2372.9°F75°F72°F76.6°F
July 2474.3°F75.2°F72.1°F76.6°F
July 2574.7°F73.8°F72.5°F76.5°F
July 2675.4°F74.3°F71.1°F77.2°F
July 2777.4°F74.7°F71.1°F78.1°F
July 2877.4°F75.2°F70.3°F77.4°F
July 2976.8°F76.6°F70.5°F76.8°F
July 3077.5°F76.8°F69.3°F77.5°F
July 3177.2°F76.1°F69.6°F77.2°F
Detroit water temp chart in July

Average water temperature in Detroit in July over a decade

20162017201820192020
73.4°F72.1°F73.8°F73.8°F75.7°F
20212022202320242025
72.7°F72.1°F72.9°F73.2°F75.6°F

Detroit sea state in July

Chart comparing the height of waves in Detroit 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 Detroit in July

Weather and climate in Detroit in July

This data display average monthly climate indicators in Detroit 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 temperature83°F
  • Average LOW temperature64°F
  • Average humidity
    69
  • Average rainfall days10 days
  • Average rainfall86mm/3.4''
  • Average daylight15h
  • Average sunshine10.2h
  • Average UV index9

Detroit 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

Temperature in neighboring cities

The nearest locations with the average water temperature in July. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Windsor73.4°F65.7°F79°F
Belle Isle Park73.8°F65.5°F78.8°F
Saint Clair Shores73.2°F64.6°F78.6°F
Grosse Pointe Farms73.9°F65.5°F78.8°F
Harrison Township72.7°F64.4°F78.4°F
Mount Clemens73.2°F64.4°F79.2°F
River Rouge73.9°F68.4°F80.8°F
St. Clair River (Port Lambton)74.1°F66.4°F80.1°F
Marine City72.1°F64°F78.6°F
Goose Bay72.1°F64°F78.6°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 Detroit 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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