World sea water temperatures

Water temperature in Washington Island (WI) in May

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Is it warm enough to swim in Washington Island in May? Average water temperature in Washington Island in May is 41.2°F and therefore is not suitable for comfortable swimming. The warmest water in Washington Island in May is 53.8°F, and the coldest is 35.1°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Washington Island

Changes water temperature in Washington Island in May 2025, 2024

To get an accurate forecast for the water temperature in Washington Island for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Washington Island, 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 138.7°F41.7°F35.2°F41.7°F
May 238.7°F40.5°F35.8°F41.7°F
May 338.3°F43.2°F36°F43.2°F
May 439°F41.5°F36.3°F42.1°F
May 539.4°F42.6°F35.1°F42.6°F
May 640.1°F43.3°F36°F43.3°F
May 740.3°F43.9°F37°F43.9°F
May 839.7°F43.5°F36.3°F43.5°F
May 939.9°F43.2°F37.2°F43.2°F
May 1040.8°F43.3°F36.9°F43.5°F
May 1141°F44.6°F37.2°F44.6°F
May 1242.6°F44.1°F37.4°F44.2°F
May 1341.4°F44.2°F36.5°F44.2°F
May 1441.2°F44.8°F36.7°F44.8°F
May 1541.2°F44.2°F35.4°F44.2°F
Day 2025 2024 Min Max
May 1641.2°F44.2°F36.5°F44.6°F
May 1740.6°F43.3°F36.3°F44.8°F
May 1840.6°F45.5°F36.9°F45.5°F
May 1938.8°F46°F37.9°F46.8°F
May 2039.9°F46.2°F39.2°F47.1°F
May 2140.3°F47.8°F39.4°F47.8°F
May 2241.2°F48.9°F39.2°F48.9°F
May 2341.4°F47.3°F39.4°F48.4°F
May 2439°F49.1°F39°F49.1°F
May 2541°F49.6°F39.2°F49.6°F
May 2643.3°F49.3°F39.7°F49.3°F
May 2743.9°F48.9°F40.1°F49.8°F
May 2844.1°F48.4°F40.3°F49.3°F
May 2944.1°F48.6°F40.5°F50.2°F
May 3044.4°F51.4°F40.6°F51.4°F
May 3145°F51.3°F38.7°F53.8°F
Washington Island water temp chart in May

Average water temperature in Washington Island in May over a decade

20162017201820192020
43.5°F40.5°F39.9°F38.7°F40.8°F
20212022202320242025
43°F39.2°F40.6°F45.7°F41°F

Washington Island sea state in May

Chart comparing the height of waves in Washington Island 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 Washington Island in May

Washington Island 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
Rowleys Bay42.4°F35.4°F53.8°F
Sister Bay43°F35.4°F54.7°F
Fish Creek45.3°F36°F56.7°F
Big Bay de Noc44.6°F36.3°F54.7°F
Egg Harbor45.7°F36.1°F57.2°F
Cave Point41.7°F34.3°F52.5°F
Garden44.1°F36.1°F55.4°F
Escanaba48°F34.2°F59.2°F
Menominee46.8°F35.8°F57.6°F
Sleeping Bear42.8°F35.6°F54.7°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 Washington Island 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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