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Western Lake Ontario: Past 24 Hour Conditions

Warnings

 

Grimsby - 45139

11:00 PM EDT 09 September 2026Buoy position: 43.27N 79.54W
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)
09 September 2026
23:00 WSW 10 gusts 11 0.23 2.4 101.0 22 20
22:00 W 11 gusts 13 0.29 2.5 101.0 23 20
21:00 WSW 14 gusts 17 0.35 2.6 101.0 23 20
20:00 WSW 14 gusts 17 0.34 2.5 101.0 23 20
19:00 WSW 12 gusts 15 0.37 2.5 101.0 23 21
18:00 WSW 15 gusts 19 0.56 2.9 101.0 23 21
17:00 SW 24 gusts 29 0.77 3.3 101.0 23 21
16:00 SW 17 gusts 21 0.39 2.5 101.1 24 21
15:00 WSW 13 gusts 19 0.18 2.1 101.2 24 21
14:00 SW 8 gusts 9 0.13 2.0 101.3 23 21
13:00 SW 8 gusts 11 0.14 1.9 101.4 23 21
12:00 SW 8 gusts 10 0.16 2.0 101.5 23 21
11:00 N/A N/A N/A N/A N/A N/A
10:00 WSW 11 gusts 15 0.21 2.1 101.6 23 21
9:00 WSW 10 gusts 14 0.16 2.1 101.6 23 21
8:00 SW 7 gusts 8 0.09 2.9 101.6 23 21
7:00 SW 7 gusts 10 0.09 3.2 101.7 23 21
6:00 W 5 gusts 8 0.09 3.3 101.7 23 21
5:00 W 3 gusts 5 0.07 2.9 101.8 23 21
4:00 W 3 gusts 4 0.07 2.9 101.8 22 21
3:00 ESE 4 gusts 5 0.08 2.8 101.9 22 21
2:00 SSW 2 gusts 3 0.11 2.7 102.0 22 21
1:00 N 3 gusts 4 0.10 2.3 102.1 22 21
0:00 SE 4 gusts 5 0.09 2.3 102.0 21 21
08 September 2026
23:00 SSW 3 gusts 4 0.10 2.3 102.0 21 21

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