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Surf Forecasts

Southwick Beach State Park surfForecast / Lake Ontario / USA

information circle12 Day Weather and Surf, issued 1 am Tuesday 17 Jun 2025 EDT
Forecast update in hr  min  s Forecast update imminent
Southwick Beach State Park surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Southwick Beach State Park sea temperature is
14.6° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Southwick Beach State Park this week:

The most powerful waves expected at Southwick Beach State Park in the next 12 days are 0.7m 5s and forecast to arrive on Thursday (Jun 19) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8PM (Thu 19th Jun)2.5ft (0.7m) 5s

Table - best surf conditions forecast for Southwick Beach State Park over the next 12 days.

Hourly12 Days
Lake Ontario – United States Surf
Print Surf Table
Updates in  hr  min  s Forecast update imminent 
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
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 (?)——————
0.3
SW
0.6
W
0.6
WNW
0.4
WNW
0.3
WNW
0.2
WNW
0.1
NW
——
0.2
W
0.2
WNW
———————————————————
Period(s) (?)------2454444--33-------------------
Wave
Graph
(?)Metric surfscale
Energy (?)00000011222731100110000000000000000000
Wind
(km/h)
15
S
25
SSE
20
SSE
15
SSW
5
WSW
20
SSE
25
W
20
NNW
5
NE
5
NW
5
WSW
15
SSE
15
SSW
10
SSW
20
S
20
WSW
15
WSW
15
S
15
SW
15
WSW
10
SSW
10
SW
10
SW
10
SSW
15
SW
10
SW
10
SSW
15
SW
10
SW
15
S
15
SW
10
SW
10
S
10
SW
5
W
5
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		cross-
on		onglasscross-
on		cross-
on		cross-
off		offcrossoncross-
on		cross-
on		oncross-
on		ononcross-
on		oncross-
on		cross-
on		ononcross-
on		ononcross-
on		ononcross-
on		ononcross-
on		oncross-
on		cross-
on
High Tide
/ height (m)
n/a
n/a
n/a
n/a
n/a
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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
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n/a
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunrise5:22--5:22--5:22--5:22--5:22--5:22--5:22--5:22--5:24--5:24--5:24--5:24--
Sunset-8:49--8:49--8:49--8:50--8:50--8:50--8:50--8:50--8:50--8:51--8:51--8:50-
part cloudcloudclearpart cloudthunderstorm rain showersrain showerslight rainpart cloudpart cloudclearrain showersrain showersrain showerspart cloudclearclearclearclearpart cloudclearclearclearclearclearclearclearclearclearrain showersrain showersclearthunderstorm rain showersrain showersthunderstorm
Rain (mm)
----4444---221---------------13-6114
Temp. °C222320232221211919182020202625222424222525242826262727252726262727232423
Feels °C (?)222318242423191718182120202827222524232726263128282930273029283031252626

Short Range Forecast: Moderate rain (total 16mm), heaviest on Thu afternoon. Warm (max 23°C on Tue afternoon, min 15°C on Thu night). Winds increasing (calm on Wed afternoon, fresh winds from the S by Thu morning).

Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Sat morning. Warm (max 26°C on Sat afternoon, min 16°C on Fri morning). Wind will be generally light.

Days 6-9 Weather Summary Mostly dry. Warm (max 28°C on Tue afternoon, min 21°C on Mon morning). Wind will be generally light.

Long Range Forecast: Moderate rain (total 16mm), heaviest on Fri night. Warm (max 27°C on Thu afternoon, min 20°C on Sat night). 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 Southwick Beach State Park at:
surf-forecast.com

Information about the Southwick Beach State Park Surf forecast

The above surf forecast table for Southwick Beach State Park provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Southwick Beach State Park can be found by selecting the local surf guide option on the grey menu. Our Southwick Beach State Park 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 (Southwick Beach State Park) 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 Southwick Beach State Park 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.

Southwick Beach State Park is 35 km (22 miles) from Watertown. If you plan a vacation in Lake Ontario - United States, look for hotels and other accommodation in Watertown. Watertown has rooms for a wide range of budgets as well as car hire and transport links.

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