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: Sat May 25, 15:01:36 UTC 2013

Location	Recent Temperatures	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP
Buffalo, NY	58.5 (05/25/2013 14:48 UTC)	28.35	33.14	46.09	55.75	64.67	72.23	70.20	60.63
Cleveland, OH	57.7 (05/25/2013 14:48 UTC)	38.81	41.85	48.90	55.59	68.83	74.97	74.54	70.03
Marblehead, OH	61.3 (05/25/2013 14:48 UTC)	33.83	37.23	49.27	59.50	72.26	75.19	77.00	68.21
Toledo, OH	N/A	51.01	50.41	50.34	52.20	52.58	53.88	55.72	57.84
Harbor Beach, MI	50.4 (05/25/2013 14:48 UTC)	34.60	37.63	45.68	53.03	59.66	70.52	71.20	67.78
Alpena, MI	53.1 (05/25/2013 14:48 UTC)
S.W.Pier, MI	44.8 (05/25/2013 14:48 UTC)	34.55	35.17	34.74	43.73	53.31	63.96	67.86	64.19
West Neebish Island, MI	47.3 (05/25/2013 14:48 UTC)	42.35	41.27	39.92	46.90	54.18	62.18	65.60	63.50
De Tour Village, MI	47.3 (05/25/2013 14:48 UTC)	27.44	31.02	39.14	48.36	59.98	64.91	63.64	60.31
Ludington, MI	N/A	44.79	42.98	48.17	52.10	56.65	59.27	61.35	60.48
Port Inland, MI	50.9 (05/25/2013 14:48 UTC)	42.35	41.27	39.92	46.90	54.18	62.18	65.60	63.50
Oswego, NY	N/A	48.10	47.53	48.91	52.10	56.94	61.94	64.74	64.38
Point Iroquois, MI	N/A	42.80	42.27	44.76	46.96	52.96	56.22	56.37	53.98
Marquette C.G., MI	N/A	42.76	45.37	46.10	48.23	53.27	55.07	55.62	54.30
Rock Cut, MI	45.7 (05/25/2013 14:48 UTC)	37.70	38.12	39.52	47.88	55.92	66.00	68.32	64.22

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