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Surf Forecasts

Niagara Rivermouth surfForecast / Lake Ontario / USA

information circle12 Day Weather and Surf, issued 7 am Friday 09 May 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
7.3° C
 (Which is slightly warmer than usual)
Hourly12 Days
Lake Ontario – United States Surf
Print Surf Table
Updates in  hr  min  s Forecast update imminent 
Friday
09
Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
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
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 (?)000000000000000000000000000000000000
Wind
(km/h)
15
NE
5
W
15
WNW
15
WSW
15
SSW
15
NNW
15
NE
15
ENE
5
ESE
10
NNE
10
NE
5
SSW
5
W
10
E
5
SE
5
NE
15
NE
5
NNE
5
N
10
NE
10
ENE
10
NNE
5
E
15
WSW
20
WNW
20
WSW
10
W
15
NW
5
W
10
NE
15
NE
15
NE
10
ESE
5
E
10
ENE
15
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
onglasscross-
off		cross-
off		offcross-
on		ononcross-
on		ononglassglasscross-
on		glassglassononglassonononcross-
on		offcross-
off		offcross-
off		crossglassonononcross-
on		cross-
on		cross-
on		off
High Tide
/ height (m)
n/a
n/a
n/a
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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
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Friday
09
Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Sunrise5:58--5:58--5:56--5:56--5:54--5:52--5:52--5:50--5:50--5:48--5:48--5:47--
Sunset-8:25--8:27--8:28--8:29--8:30--8:30--8:32--8:34--8:35--8:36--8:37--8:37-
clearpart cloudpart cloudclearpart cloudpart cloudclearclearclearclearclearpart cloudcloudcloudlight rainlight rainpart cloudlight raincloudpart cloudpart cloudpart cloudrain showersrain showerspart cloudpart cloudclearcloudpart cloudpart cloudclearclearclearpart cloudlight rainrain showers
Rain (mm)
--------------12-3----21----------18
Temp. °C81213121714811111115161818181616131316161517151516148121291414181920
Feels °C (?)49971310367913161819181716121316161417131213113101051011171821

Short Range Forecast: Mostly dry. Very mild (max 17°C on Sat afternoon, min 6°C on Fri morning). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 6mm), mostly falling on Wed night. Very mild (max 18°C on Tue morning, min 9°C on Mon morning). Wind will be generally light.

Days 6-9 Weather Summary Light rain (total 3mm), mostly falling on Fri afternoon. Very mild (max 17°C on Fri afternoon, min 8°C on Sat night). Wind will be generally light.

Long Range Forecast: Moderate rain (total 10mm), heaviest on Tue night. Warm (max 20°C on Tue night, min 8°C on Sun morning). Wind will be generally light.

  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
<span class="translation_missing" title="translation missing: en.leaflet.map_placeholder_alt">Map Placeholder Alt</span>
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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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