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Surf Forecasts

Ontario Beach-Rochester surfForecast / Lake Ontario / USA

information circle12 Day Weather and Surf, issued 7 am Tuesday 13 May 2025 EDT
Forecast update in hr  min  s Forecast update imminent
Ontario Beach-Rochester surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Ontario Beach-Rochester sea temperature is
4.8° C
 (Which is 1.7°C colder than average for this time of year)
Hourly12 Days
Lake Ontario – United States Surf
Print Surf Table
Updates in  hr  min  s Forecast update imminent 
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
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)
10
SE
20
SSE
20
SE
25
SE
20
SE
15
SE
15
SSE
5
SSW
10
SSW
15
SW
20
W
15
S
20
SSW
25
WSW
25
WSW
30
WSW
30
W
30
WNW
20
NW
20
NW
20
NW
15
NW
10
N
5
NW
10
NE
15
NE
15
NE
5
E
20
ESE
15
E
10
E
10
ENE
5
ESE
5
NNW
10
NW
15
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		offcross-
off		cross-
off		cross-
off		cross-
off		offcross-
off		cross-
off		cross-
off		cross-
on		cross-
off		cross-
off		crosscrosscrosscross-
on		cross-
on		cross-
on		cross-
on		oncross-
on		cross-
on		cross-
on		cross-
on		crosscrosscross-
off		cross-
off		cross-
off		cross-
off		crossglassoncross-
on		cross-
off
High Tide
/ height (m)
n/a
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Low Tide
/ height (m)
n/a
n/a
n/a
n/a
n/a
n/a
n/a
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Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunrise5:48--5:47--5:46--5:45--5:43--5:43--5:41--5:41--5:39--5:39--5:39--5:37--
Sunset-8:23--8:24--8:25--8:27--8:28--8:30--8:30--8:31--8:32--8:34--8:35--8:36-
cloudthunderstorm light rainlight raincloudpart cloudpart cloudlight rainrain showerslight rainthunderstorm part cloudmod rainthunderstorm cloudlight rainlight rainlight raincloudcloudcloudpart cloudcloudpart cloudpart cloudpart cloudlight rainlight rainlight rainmod rainlight raincloudpart cloudpart cloudclearclear
Rain (mm)
-511---1712-91-131--------23484-----
Temp. °C2322171818171921182021171619141111981010899911991110111110121515
Feels °C (?)24211415151518201920201613169642267356674787998101312

Short Range Forecast: Moderate rain (total 15mm), heaviest on Thu night. Warm (max 23°C on Tue morning, min 14°C on Wed night). Wind will be generally light.

Days 3-6 Weather Summary Moderate rain (total 18mm), heaviest on Sat morning. Warm (max 21°C on Fri afternoon, min 7°C on Sun night). Winds increasing (light winds from the SSW on Fri morning, fresh winds from the W by Sun afternoon).

Days 6-9 Weather Summary Light rain (total 2mm), mostly falling on Wed night. Very mild (max 11°C on Wed afternoon, min 7°C on Tue morning). Wind will be generally light.

Long Range Forecast: Moderate rain (total 19mm), heaviest on Fri morning. Very mild (max 15°C on Sat afternoon, min 8°C on Thu 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 Ontario Beach-Rochester at:
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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 12 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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