Water temperature in Good Harbor Bay (MI) in December

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Is it warm enough to swim in Good Harbor Bay in December? Average water temperature in Good Harbor Bay in December is 42.6°F and therefore is not suitable for comfortable swimming. The warmest water in Good Harbor Bay in December is 48.7°F, and the coldest is 37.8°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Good Harbor Bay

Changes water temperature in Good Harbor Bay in December 2025, 2024

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

Sea temperature

Sea state

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
December 1	45.5°F	47.7°F	41.7°F	47.7°F
December 2	45.5°F	48.2°F	41.4°F	48.2°F
December 3	45.5°F	47.7°F	41°F	47.7°F
December 4	44.8°F	47.7°F	40.8°F	48.7°F
December 5	44.8°F	47.5°F	41.9°F	48°F
December 6	44.8°F	47.1°F	41.4°F	47.5°F
December 7	44.4°F	46.4°F	41°F	47.1°F
December 8	43.5°F	45.9°F	41.2°F	46.4°F
December 9	43°F	45.3°F	40.6°F	46.6°F
December 10	42.6°F	45.7°F	40.8°F	46.4°F
December 11	42.1°F	45.1°F	40.8°F	45.7°F
December 12	41.7°F	44.6°F	40.8°F	45.5°F
December 13	41.4°F	44.1°F	40.6°F	45.7°F
December 14	41.4°F	44.4°F	40.6°F	46.2°F
December 15	41.4°F	44.4°F	40.1°F	45.7°F

Day	2025	2024	Min	Max
December 16	41.4°F	44.2°F	40.3°F	45.5°F
December 17		44.1°F	41.2°F	45.1°F
December 18		43.9°F	37.9°F	44.2°F
December 19		43.7°F	38.3°F	44.6°F
December 20		43.5°F	40.3°F	44.6°F
December 21		43°F	39.7°F	43.7°F
December 22		42.4°F	39.9°F	43.3°F
December 23		41.7°F	41.2°F	42.1°F
December 24		41.2°F	39.2°F	43.9°F
December 25		40.6°F	39.2°F	41.7°F
December 26		43°F	38.5°F	43°F
December 27		42.3°F	38.3°F	42.3°F
December 28		42.3°F	38.5°F	42.3°F
December 29		42.1°F	38.7°F	42.3°F
December 30		42.1°F	38.1°F	42.1°F
December 31		42.1°F	37.8°F	42.4°F

Good Harbor Bay water temp chart in December

Average water temperature in Good Harbor Bay in December over a decade

2015	2016	2017	2018	2019
45°F	44.2°F	42.4°F	41.4°F	41.7°F

2020	2021	2022	2023	2024
43.2°F	43°F	41.7°F	42.8°F	44.2°F

Good Harbor Bay water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Temperature in neighboring cities

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

	Avr	Min	Max
Charlevoix	42.6°F	36.5°F	49.1°F
Little Traverse Bay	41.5°F	35.1°F	48.6°F
Petoskey	41.5°F	35.1°F	48.6°F
Beaver Island	41.9°F	34.5°F	49.1°F
Washington Island	41.2°F	35.6°F	49.1°F
Harbor Springs	41.4°F	34.7°F	48.4°F
Fairport	41.5°F	34°F	48.9°F
Rowleys Bay	40.3°F	33.8°F	49.5°F
Manistee	43°F	37.9°F	48.6°F
Baileys Harbor	41°F	34.9°F	49.8°F

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Our report for Good Harbor Bay 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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Date (day and month)

Water temperature: min 60°F

Average temperature Maximum temperature