Coastal Water Temperature Guide

Water Temperature Table of the Great Lakes

— The table below shows the near real-time and average water temperatures in degrees Fahrenheit (°F).

— "NA" means that a recent temperature for that station is Not Available.

— Clicking on the hyperlinked "Recent Temperatures" will display station information for the location.

— Non-linked temperatures in the monthly columns are average water temperatures. (Complete List of Average Temperatures)

— Use the near real-time water temperature data with discretion, because they may contain errors.

Water Temperature Table of the Great Lakes (Google Maps-based Web page)
Last Updated: Wed Oct 02, 18:01:33 UTC 2013

Location	Recent Temperatures	JUL	AUG	SEP	OCT	NOV	DEC
Buffalo, NY	66.6 (10/02/2013 17:48 UTC)	72.23	70.20	60.63	49.95	44.05	37.65
Cleveland, OH	66.7 (10/02/2013 17:48 UTC)	74.97	74.54	70.03	58.22	50.11	44.12
Marblehead, OH	65.8 (10/02/2013 17:48 UTC)	75.19	77.00	68.21	55.37	45.18	39.01
Toledo, OH	N/A	53.88	55.72	57.84	58.97	57.90	55.92
Harbor Beach, MI	64.2 (10/02/2013 17:48 UTC)	70.52	71.20	67.78	56.16	44.65	35.58
Alpena, MI	62.2 (10/02/2013 17:48 UTC)
S.W.Pier, MI	61.2 (10/02/2013 17:48 UTC)	63.96	67.86	64.19	56.64	47.62	37.98
West Neebish Island, MI	61.9 (10/02/2013 17:48 UTC)	62.18	65.60	63.50	56.39	48.02	42.94
De Tour Village, MI	58.5 (10/02/2013 17:48 UTC)	64.91	63.64	60.31	47.03	38.05	30.25
Ludington, MI	N/A	59.27	61.35	60.48	56.44	53.04	49.52
Port Inland, MI	63.7 (10/02/2013 17:48 UTC)	62.18	65.60	63.50	56.39	48.02	42.94
Oswego, NY	N/A	61.94	64.74	64.38	62.42	57.60	53.67
Point Iroquois, MI	N/A	56.22	56.37	53.98	47.51	43.51	41.10
Marquette C.G., MI	N/A	55.07	55.62	54.30	48.89	45.10	41.64
Rock Cut, MI	60.8 (10/02/2013 17:48 UTC)	66.00	68.32	64.22	52.85	44.44	38.62

To convert temperature units, enter a number in either box below, then click the other box.