Ontario Beach-Rochester Surf Break

Lat Long: 43.25° N 77.52° W

Ontario Beach-Rochester Surf Forecast and Surf Report

Issued: 1 am 07 Aug 2026 (local time)

Forecast update in  hr  min

Today's Ontario Beach-Rochester sea temperature is
22.7° C
1.2° 

Ontario Beach-Rochester surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

The Lowdown

Alright folks, Rusty here. Let's have a look at what Lake Ontario is offering up.

Well, I gotta be straight with you – this is a tough one. The entire 16-day forecast window is a flat, blank run. From now through August 22nd, there’s just no swell to speak of. The combined wave energy is sitting at zero for the whole period. It’s a real bummer, and honestly, for Lake Ontario, a stretch like this is more normal than you’d hope. We’re stuck in a pattern of poor surf conditions with nothing to ride.

The water at Ontario Beach (Ontario-Beach) is about 73°, which is a touch warmer than usual for this time of year, but that’s small comfort when there aren't any waves.

We do get some decent wind conditions, especially on the 15th and 16th of August with light offshore breezes from the south and southeast, and even a glassy morning on the 19th and 20th. But with no swell, it’s just a flat, clean lake. It’s the kind of setup that looks more interesting for a paddleboard or a kayak than a surfboard.

There are no standout days, no hidden gems. The forecast just doesn't have any surf in it. We’ll have to keep our fingers crossed that the long-range models change, because it can’t stay this flat forever.

Rusty, signing off.

Short Range Forecast

Moderate rain (total 12mm), heaviest on Fri night. Warm (max 28°C on Sat afternoon, min 20°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 5mm), mostly falling on Mon afternoon. Warm (max 29°C on Mon afternoon, min 18°C on Tue night). Wind will be generally light.

Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
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
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
Wave Graph
Metric surfscale
Energy kJ
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Wind (km/h)
10
W
5
SE
5
SSW
10
SW
15
W
15
W
20
WNW
10
W
15
SSW
10
WSW
25
WSW
20
WSW
15
WNW
15
W
15
W
15
WNW
10
W
15
N
20
NW
15
WNW
15
WNW
Wind State
cross
glassy
cross-off
cross-off
cross-on
cross
cross-on
cross-on
cross-off
cross
cross
cross
cross-on
cross
cross-on
cross-on
cross
cross-on
on
cross-on
cross-on
High Tide
Low Tide
light rain
light rain
rain showers
part cloud
thunderstorm
thunderstorm
clear
clear
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
thunderstorm
clear
clear
part cloud
cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:07
6:07
6:09
6:09
6:11
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:23
8:22
8:22
8:20
8:19
8:16
8:15
 mm
1
1
6
1
3
1
2
2
Temp °C
22
24
21
25
28
27
23
27
26
26
29
25
24
25
24
23
24
23
20
24
22
Feels °C
24
27
23
27
30
28
20
26
26
26
29
26
25
26
25
22
23
22
17
22
21
  • 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
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Information about the Ontario Beach-Rochester Surf forecast

The above surf forecast table for Ontario Beach-Rochester provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ontario Beach-Rochester can be found by selecting the local surf guide option on the grey menu. Our Ontario Beach-Rochester 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 (Ontario Beach-Rochester) 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 Ontario Beach-Rochester 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.

Ontario Beach-Rochester is 6 km (4 miles) from the city of Irondequoit. If you plan a vacation in Lake Ontario - United States, look for hotels and other accommodation in Irondequoit. Irondequoit has rooms for a wide range of budgets as well as car hire and transport links.

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