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Surf Forecasts:

St Catharines surfForecast / Lake Ontario / Canada

information circle48hr Weather and Surf, issued 1 am Monday 15 Sep 2025 EDT
Forecast update in hr  min  s Forecast update imminent
St Catharines surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's St Catharines sea temperature is
18.8° C
 (Which is normal for this time of year)
Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Monday
15
Tuesday
16
Wednesday
17
11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)————————————————————————
Period(s) (?)------------------------
Wave
Graph
(?)Metric surfscale
Energy kJ (?)000000000000000000000000
Wind
(km/h)
10
ESE
10
E
10
ESE
10
E
15
NE
25
NE
25
NE
15
ENE
15
E
15
E
15
E
10
E
15
ENE
25
NE
20
NE
10
ENE
10
E
5
ENE
0
E
5
WSW
10
WNW
10
NNW
5
NE
10
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
on		cross-
on		cross-
on		ononononcross-
on		cross-
on		cross-
on		cross-
on		ononononcross-
on		glassglassglasscross-
off		cross-
on		oncross
High Tide
/ height (m)
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
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n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Low Tide
/ height (m)
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
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n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
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n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Monday
15
Tuesday
16
Wednesday
17
Sunrise---6:54-------6:56-------6:56----
Sunset------7:27-------7:24-------7:22-
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C211917161919212119181717202021222019171720212323
Feels °C (?)201816151716171816151415181718201919171720202222
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for Lake Ontario

  1. weather stationWind Update Continuing clean conditions at St Catharines (calm at Port Weller Airport 8 km from St Catharines). not gfswave

    2 hours 33 minutes ago St Catharines
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2 h 33 min ago

4 km/h
SSW
Clean
Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our St Catharines surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for St Catharines at:
surf-forecast.com

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