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Surf Forecasts:

Niagara Rivermouth surfForecast / Lake Ontario / USA

information circle12 Day Weather and Surf, issued 7 pm Tuesday 16 Sep 2025 EDT
Forecast update in hr  min  s Forecast update imminent
Niagara Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Niagara Rivermouth sea temperature is
19.5° C
 (Which is slightly warmer than usual)
Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Warm (max 28°C on Thu afternoon, min 13°C on Fri morning). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Sun night. Warm (max 29°C on Sun afternoon, min 12°C on Sat morning). Winds increasing (light winds from the NE on Fri night, fresh winds from the ENE by Sat afternoon).

Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tue
23
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
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 (?)000000000000000000000
Wind
(km/h)
10
E
5
N
10
NE
5
SW
15
W
5
SW
20
NNE
20
NE
10
ENE
15
E
25
ENE
35
ENE
20
ESE
15
SSW
20
SSW
25
SSW
25
SSW
30
SW
15
SW
15
WSW
5
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		glassonoffcross-
off		offonononcross-
on		cross-
on		oncross-
on		cross-
off		cross-
off		cross-
off		cross-
off		offoffoffoff
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
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
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
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
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tue
23
Sunrise-6:56--6:58--6:58--7:00--7:01--7:01--7:03-
Sunset--7:22--7:21--7:19--7:16--7:15--7:14--7:12
clear
part cloud
cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
rain showers
light rain
part cloud
clear
clear
clear
Rain (mm)
---------------31----
Temp. °C212122212128231418171719182329242128252630
Feels °C (?)182121211927221015141112162227201824232530
  • 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 Niagara Rivermouth (calm at Lewiston 11 km from Niagara Rivermouth). not gfswave

    1 hour 9 minutes ago Niagara Rivermouth
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<
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1 h 9 min ago

0 km/h
NE
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 Niagara Rivermouth 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 Niagara Rivermouth at:
surf-forecast.com

Information about the Niagara Rivermouth Surf forecast

The above surf forecast table for Niagara Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Niagara Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Niagara Rivermouth surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Niagara Rivermouth) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Niagara Rivermouth may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Niagara Rivermouth is 18 km (11 miles) from the city of Saint Catharines. If you plan a vacation in Lake Ontario - United States, look for hotels and other accommodation in Saint Catharines. Saint Catharines has rooms for a wide range of budgets as well as car hire and transport links.

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