World sea water temperatures

Water temperature in Ontonagon (MI) in October

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Is it warm enough to swim in Ontonagon in October? Average water temperature in Ontonagon in October is 52.5°F and therefore is not suitable for comfortable swimming. The warmest water in Ontonagon in October is 63°F, and the coldest is 45.3°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Ontonagon

Changes water temperature in Ontonagon in October 2024, 2023

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

You can choose any other years:

Year 1:   Year 2:


Day 2024 2023 Min Max
October 163°F57.4°F51.6°F63°F
October 261.3°F61°F51.6°F62.4°F
October 361°F61.9°F51.8°F61.9°F
October 461°F61.9°F51.4°F61.9°F
October 560.8°F61.2°F50.7°F61.3°F
October 659.9°F60.4°F48.7°F61.7°F
October 759°F60.3°F48.7°F61.9°F
October 858.6°F59.9°F49.3°F61°F
October 957.7°F58.8°F49.1°F62.2°F
October 1057.9°F57.9°F48.4°F62.2°F
October 1157.9°F57.7°F47.5°F61.7°F
October 1257.4°F57.9°F47.8°F60.8°F
October 1357°F57°F47.7°F60.6°F
October 1455.9°F57°F47.3°F60.6°F
October 1554.5°F57°F46.8°F60.1°F
Day 2024 2023 Min Max
October 1654.1°F56.5°F46.9°F59.7°F
October 1754.3°F55.9°F47.3°F59°F
October 1854°F55.2°F47.3°F58.3°F
October 1953.8°F54.5°F46.6°F59°F
October 2053.8°F53.1°F47.3°F57.9°F
October 2154.5°F53.1°F46.9°F57.4°F
October 2254.7°F52.3°F46.8°F56.8°F
October 2353.8°F52°F46.8°F56.5°F
October 2453.1°F51.6°F47.1°F55.6°F
October 2553.1°F51.1°F46.9°F54.5°F
October 2653.4°F50.9°F45.7°F55.2°F
October 2752.7°F51.8°F46.2°F54.9°F
October 2852.3°F52.2°F46°F54.1°F
October 2951.8°F51.8°F45.9°F53.4°F
October 3051.6°F51.3°F46°F53.2°F
October 3152.5°F51.4°F45.3°F53.8°F
Ontonagon water temp chart in October

Average water temperature in Ontonagon in October over a decade

20152016201720182019
51.8°F52.2°F54.9°F48.4°F50.2°F
20202021202220232024
51.6°F58.6°F53.4°F55.9°F55.9°F

Ontonagon sea state in October

Chart comparing the height of waves in Ontonagon in October 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 Ontonagon in October

Ontonagon 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 October?

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

AvrMinMax
McLain State Park52.3°F42.1°F64.2°F
Calumet52.3°F41.5°F64.4°F
Keweenaw Bay53.6°F44.6°F64.9°F
Apostle Islands52.2°F44.6°F63.3°F
Eagle River51.8°F43.9°F64°F
Madeline Island53.1°F45.5°F63.5°F
Big Bay State Park53.1°F45.5°F63.5°F
Washburn53.1°F45.7°F64.6°F
Bayfield53.2°F45.5°F64°F
Eagle Harbor51.8°F43.7°F64°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 Ontonagon 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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