World sea water temperatures

Water temperature in Harvey (MI) in August

Is it warm enough to swim in Harvey in August? Average water temperature in Harvey in August is 64.9°F and therefore is not suitable for comfortable swimming. The warmest water in Harvey in August is 71.1°F, and the coldest is 58.3°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Harvey

Changes water temperature in Harvey in August 2025, 2024

To get an accurate forecast for the water temperature in Harvey for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Harvey, 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 166°F66.4°F58.3°F69.6°F
August 266.2°F71.1°F60.1°F71.1°F
August 367.1°F70.7°F60.4°F70.9°F
August 467.3°F70.5°F61°F70.5°F
August 567.1°F70.2°F61.5°F70.2°F
August 667.3°F71.1°F61.9°F71.1°F
August 769.8°F70.2°F62.1°F70.2°F
August 869.4°F70.2°F62.4°F70.2°F
August 969.4°F69.4°F62.2°F69.4°F
August 1068.9°F68.9°F62.4°F69.3°F
August 1168.5°F68.4°F62.4°F68.7°F
August 1266.7°F66.9°F61.5°F67.8°F
August 1366°F67.8°F61°F67.8°F
August 1466.2°F68°F59.5°F68.2°F
August 1568.5°F68.5°F59.2°F68.5°F
Day 2025 2024 Min Max
August 1668.9°F68°F59.2°F69.4°F
August 1767.6°F67.6°F59.4°F70.2°F
August 1866.6°F67.1°F59.4°F70.2°F
August 1966.4°F66.2°F58.8°F69.8°F
August 2066°F65.3°F59°F68.9°F
August 2165.5°F65.7°F59.2°F68.7°F
August 2265.5°F65.5°F59.9°F66.7°F
August 2365.1°F65.5°F60.3°F67.1°F
August 2464°F65.8°F60.4°F67.6°F
August 2563.5°F68°F60.6°F68°F
August 2663.3°F67.8°F59.2°F68.2°F
August 2763.1°F66.7°F60.4°F67.8°F
August 2863.3°F66.6°F60.4°F67.6°F
August 2962.4°F66°F60.3°F67.5°F
August 3062.8°F66.9°F60.4°F67.3°F
August 3163.3°F66.7°F59.7°F67.3°F
Harvey water temp chart in August

Average water temperature in Harvey in August over a decade

20162017201820192020
68°F62.6°F64.6°F64.6°F66.7°F
20212022202320242025
66.7°F64°F64.8°F67.8°F67.8°F

Harvey sea state in August

Chart comparing the height of waves in Harvey 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 Harvey in August

Harvey 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

Temperature in neighboring cities

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

AvrMinMax
Marquette64.8°F57.9°F71.2°F
Rock River65.8°F58.1°F71.8°F
Au Train65.8°F57.7°F71.8°F
Christmas65.8°F56.8°F71.6°F
Munising66°F56.5°F71.4°F
Pictured Rocks64.8°F50.9°F72.3°F
Keweenaw Bay65.3°F55.8°F70.9°F
Gladstone69.6°F63.5°F75.7°F
Rapid River69.6°F63.5°F75.7°F
L'Anse66.4°F59.4°F71.6°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 Harvey 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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