World sea water temperatures

Water temperature in Apostle Islands (WI) in June

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Is it warm enough to swim in Apostle Islands in June? Average water temperature in Apostle Islands in June is 48.4°F and therefore is not suitable for comfortable swimming. The warmest water in Apostle Islands in June is 63.7°F, and the coldest is 34.2°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Apostle Islands

Changes water temperature in Apostle Islands in June 2025, 2024

To get an accurate forecast for the water temperature in Apostle Islands for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Apostle Islands, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of June.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
June 145.9°F44.8°F35.4°F46.6°F
June 246°F47.8°F34.2°F47.8°F
June 345.7°F47.3°F35.1°F48.2°F
June 446.4°F48.6°F35.6°F49.1°F
June 549.3°F48.9°F40.5°F49.3°F
June 648.4°F51.4°F38.7°F51.4°F
June 745.1°F49.8°F37.8°F50.7°F
June 846.8°F50°F38.1°F53.8°F
June 947.5°F51.1°F38.3°F54.5°F
June 1048.2°F49.3°F40.3°F55°F
June 1149.1°F48.7°F41.4°F55.4°F
June 1252°F50.5°F40.5°F55.6°F
June 1351.1°F49.6°F41.9°F53.6°F
June 1450.4°F50.9°F43.5°F53.6°F
June 1547.1°F50.9°F43.9°F54.5°F
Day 2025 2024 Min Max
June 1647.1°F50.5°F43.3°F54°F
June 1749.3°F49.5°F45°F53.2°F
June 1850°F50.2°F45.1°F53.4°F
June 1949.5°F50.2°F44.8°F55°F
June 2048.9°F52.2°F44.1°F55.9°F
June 2148.9°F51.8°F43.3°F54.9°F
June 22 52.3°F45.7°F54.7°F
June 2349.5°F51.6°F46°F55.9°F
June 2451.4°F53.6°F44.2°F59.2°F
June 2550.5°F52.9°F45.7°F60.1°F
June 2651.1°F54.1°F46.6°F60.1°F
June 2749.3°F54.3°F47.3°F60.8°F
June 2849.1°F55.2°F47.8°F62.6°F
June 2947.8°F55.4°F45.7°F63.7°F
June 3049.1°F55.4°F46.6°F63.5°F
Apostle Islands water temp chart in June

Average water temperature in Apostle Islands in June over a decade

20162017201820192020
50°F47.7°F45°F45.1°F50.7°F
20212022202320242025
53.2°F44.2°F45.3°F50.9°F48.6°F

Apostle Islands sea state in June

Chart comparing the height of waves in Apostle Islands in June 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 Apostle Islands in June

Apostle Islands 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 June?

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

AvrMinMax
Madeline Island53.2°F35.8°F67.8°F
Big Bay State Park53.2°F35.8°F67.8°F
Cornucopia46.9°F35.6°F66.2°F
Herbster45.5°F35.6°F64.6°F
Silver Bay41.5°F35.4°F59.9°F
Beaver Bay41.7°F34.5°F59.5°F
Tofte41.2°F35.2°F58.1°F
Schroeder41.2°F35.2°F57.7°F
Port Wing45.3°F35.6°F64.9°F
Lutsen40.8°F35.4°F57°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 Apostle Islands 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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