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Great Lakes - Lake Erie and Lake Ontario: Past 24 Hour Conditions

Warnings

 

South Georgian Bay - 45143

08:00 PM EDT 21 May 2026Buoy position: 44.95N 80.63W
Disclaimer

This table is a summary of hourly weather conditions for the past 24 hours.
Please note that these observations might not always be representative of weather conditions over their associated marine area.
Date / Time
(EDT)		 Wind(knots) Wave height(m) Wave period(s) Pressure(kPa) Air temp(°C) Water temp(°C)
21 May 2026
20:00 NNW 5 gusts 7 0.26 2.9 102.9 5 3
19:00 NW 6 gusts 8 0.26 2.9 102.9 5 3
18:00 NW 9 gusts 10 0.30 2.7 102.9 5 3
17:00 NW 10 gusts 12 0.27 3.3 102.9 4 3
16:00 WNW 9 gusts 10 0.28 2.9 103.0 4 3
15:00 NW 9 gusts 10 0.32 3.7 103.0 4 3
14:00 NW 11 gusts 12 0.34 3.6 103.0 4 3
13:00 NW 10 gusts 12 0.40 3.8 103.1 4 3
12:00 NW 7 gusts 10 0.44 4.2 103.2 4 3
11:00 NW 5 gusts 6 0.54 3.4 103.2 4 3
10:00 N 4 gusts 5 0.62 4.2 103.2 4 3
9:00 NNE 8 gusts 10 0.64 4.3 103.1 4 3
8:00 NE 11 gusts 13 0.92 N/A 103.1 4 3
7:00 NE 11 gusts 12 0.76 3.8 103.0 4 3
6:00 NE 12 gusts 15 0.74 4.2 102.9 4 3
5:00 NNE 13 gusts 16 0.71 3.6 102.8 4 3
4:00 NNE 13 gusts 15 0.43 2.3 102.8 5 3
3:00 NNE 12 gusts 13 0.35 3.7 102.7 5 3
2:00 NNW 10 gusts 12 0.42 4.1 102.6 5 3
1:00 NW 10 gusts 12 0.43 4.2 102.6 4 3
0:00 WNW 9 gusts 11 0.41 4.3 102.6 5 3
20 May 2026
23:00 WSW 7 gusts 8 0.46 4.3 102.6 4 3
22:00 WNW 7 gusts 8 0.49 4.4 102.6 5 3
21:00 NW 10 gusts 11 0.54 4.3 102.4 5 3
20:00 NW 11 gusts 12 0.51 4.1 102.4 5 3

If you require additional historical weather information please visit Fisheries and Oceans Canada

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas CFB Trenton Port Colborne - 45142 Hamilton Munro Int'l Airport Oshawa Executive Airport Port Stanley - 45132 Lake Nipissing - 45152 Point Petre Georgian Bay - 45137 Toronto City Centre Airport Lake Simcoe - 45151 South Georgian Bay - 45143 Prince Edward Point - 45135 Peterborough Municipal Airport South Lake Huron - 45149 Collingwood Lake St Clair - 45147 Grimsby - 45139 Goderich Lagoon City Kingston Airport Muskoka Airport Parry Sound Harbour Grenadier Island Lake Simcoe Regional Airport Wiarton Airport Brockville Western Islands Cove Island Great Duck Island North Channel - 45154 Sarnia Chris Hadfield Airport Gore Bay-Manitoulin Airport Tobermory Harrow AAFC Long Point North Bay Airport Port Weller St. Catharines / Niagara District Airport Greater Sudbury Airport Southeast Shoal Vineland Station Port Colborne Erieau Cobourg Sault Ste. Marie Airport Windsor Airport Welland-Pelham Killarney Ajax - 45159 Point Pelee Burlington Lift Bridge
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