World sea water temperatures

Water temperature in Harvey (MI) in May

Is it warm enough to swim in Harvey in May? Average water temperature in Harvey in May is 39°F and therefore is not suitable for comfortable swimming. The warmest water in Harvey in May is 49.1°F, and the coldest is 32.2°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 May 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 May.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
May 135.6°F40.1°F32.5°F40.1°F
May 235.6°F39.2°F33.1°F39.4°F
May 338.3°F39.9°F33.8°F39.9°F
May 439°F40.3°F32.7°F40.3°F
May 539.6°F40.6°F32.2°F40.6°F
May 639°F41.5°F32.7°F41.5°F
May 739.2°F38.8°F33.4°F39.9°F
May 838.7°F38.8°F33.6°F41.7°F
May 938.8°F42.3°F33.8°F42.3°F
May 1039.4°F39.7°F34°F41.7°F
May 1140.5°F41.7°F34°F41.7°F
May 1240.5°F42.3°F34°F44.2°F
May 1342.6°F42.1°F34°F46.4°F
May 1440.5°F42.8°F33.4°F46°F
May 1540.1°F42.3°F33.4°F47.3°F
Day 2025 2024 Min Max
May 1639.7°F42.6°F33.4°F45.7°F
May 1739.6°F44.4°F32.9°F46.2°F
May 1839.6°F43.2°F33.4°F45.1°F
May 1939.7°F44.4°F33.4°F46.8°F
May 2039.6°F43.7°F36°F45.3°F
May 2139.4°F43.3°F35.8°F43.9°F
May 2241°F43°F34.5°F43.3°F
May 2341°F43.5°F34.3°F44.6°F
May 2440.8°F44.6°F34.5°F44.6°F
May 2540.8°F45.3°F34°F45.3°F
May 2642.8°F43.9°F34.2°F43.9°F
May 2742.4°F43.3°F34°F44.6°F
May 2841.5°F43.7°F34.2°F43.7°F
May 2939.4°F45°F35.8°F45.9°F
May 3041°F46°F35.8°F49.1°F
May 3141°F44.6°F36.1°F46.4°F
Harvey water temp chart in May

Average water temperature in Harvey in May over a decade

20162017201820192020
39.7°F37.8°F37°F38.5°F38.7°F
20212022202320242025
43.2°F38.8°F40.1°F42.4°F39.9°F

Harvey sea state in May

Chart comparing the height of waves in Harvey in May 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 May

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 May?

Want to know where the water temperature in May 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 May. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Marquette38.1°F32.2°F45.9°F
Rock River38.7°F32.9°F47.8°F
Au Train38.7°F33.1°F47.8°F
Christmas38.7°F33.4°F48.2°F
Munising38.7°F34°F47.3°F
Pictured Rocks37.4°F32°F46.2°F
Keweenaw Bay38.3°F33.4°F45.5°F
Gladstone48.6°F35.2°F59.9°F
Rapid River48.6°F35.2°F59.9°F
L'Anse39.6°F34.3°F51.1°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 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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