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Georgian Bay: Past 24 Hour Conditions

Warnings

 

Lake Simcoe - 45151

02:00 AM EDT 20 July 2026Buoy position: 44.5N 79.37W
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)
20 July 2026
2:00 WNW 5 gusts 6 0.04 1.7 101.6 18 23
1:00 WNW 4 gusts 5 0.06 1.6 101.5 18 23
0:00 NW 5 gusts 7 0.10 1.9 101.5 18 23
19 July 2026
23:00 NNW 8 gusts 9 0.14 1.8 101.5 18 23
22:00 NNW 8 gusts 10 0.18 1.8 101.5 19 23
21:00 NW 9 gusts 11 0.20 1.8 101.5 19 23
20:00 WNW 11 gusts 13 0.31 1.8 101.5 20 23
19:00 WNW 12 gusts 15 0.28 1.9 101.5 21 23
18:00 NW 9 gusts 12 0.19 2.2 101.5 21 23
17:00 NNW 7 gusts 10 0.11 2.2 101.5 22 23
16:00 WNW 3 gusts 5 0.09 1.9 101.5 22 23
15:00 NW 5 gusts 8 0.09 1.7 101.5 21 23
14:00 NNW 7 gusts 10 0.14 1.8 101.5 20 23
13:00 NNW 8 gusts 12 0.17 1.9 101.6 20 23
12:00 NNW 6 gusts 12 0.18 1.8 101.6 19 23
11:00 N 7 gusts 12 0.20 2.1 101.6 18 23
10:00 N 10 gusts 13 0.29 2.3 101.6 17 22
9:00 N 13 gusts 17 0.37 2.9 101.6 16 22
8:00 N 15 gusts 19 0.38 2.6 101.5 16 22
7:00 N 16 gusts 20 0.43 2.9 101.5 16 23
6:00 N 17 gusts 23 0.46 2.9 101.4 16 23
5:00 NNE 17 gusts 22 0.35 2.5 101.3 17 23
4:00 NNW 15 gusts 19 0.32 2.5 101.2 17 23
3:00 NNW 11 gusts 14 0.26 2.3 101.2 18 23
2:00 NNW 15 gusts 17 0.29 2.4 101.2 18 23

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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