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

Warnings

 

Ajax - 45159

06:00 AM EDT 21 July 2026Buoy position: 43.77N 78.98W
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 July 2026
6:00 E 6 gusts 15 0.68 4.3 100.4 18 17
5:00 SSE 2 gusts 3 0.70 4.2 100.4 20 17
4:00 SSW 10 gusts 12 0.65 4.0 100.4 21 16
3:00 SSE 8 gusts 9 0.54 3.6 100.5 19 16
2:00 S 6 gusts 7 0.48 3.5 100.6 20 16
1:00 SSW 9 gusts 10 0.42 3.2 100.7 20 17
0:00 SSW 9 gusts 10 0.38 3.1 100.8 20 17
20 July 2026
23:00 S 11 gusts 12 0.37 3.5 100.8 20 17
22:00 S 8 gusts 8 0.40 3.5 100.9 20 17
21:00 SSW 8 gusts 9 0.48 3.8 100.9 20 17
20:00 N/A N/A N/A N/A N/A N/A
19:00 SSW 10 gusts 12 0.18 2.1 101.0 21 18
18:00 S 6 gusts 8 0.09 2.1 101.1 20 18
17:00 SSE 7 gusts 8 0.08 2.1 101.2 20 18
16:00 SSE 7 gusts 8 0.06 2.1 101.2 19 18
15:00 SSE 6 gusts 6 0.06 2.2 101.3 19 17
14:00 S 4 gusts 5 0.06 3.0 101.4 19 17
13:00 S 5 gusts 6 0.05 3.4 101.4 18 17
12:00 S 4 gusts 5 0.05 2.3 101.5 18 16
11:00 WSW 1 gusts 2 0.04 2.4 101.5 17 16
10:00 NW 3 gusts 3 0.04 2.5 101.5 16 15
9:00 NW 2 gusts 3 0.04 2.4 101.5 15 15
8:00 N 2 gusts 2 0.05 2.5 101.5 15 15
7:00 N 6 gusts 6 0.09 2.9 101.4 15 15
6:00 N 3 gusts 4 0.11 2.9 101.4 15 15

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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