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Surf Forecasts

Southwick Beach State Park surfForecast / Lake Ontario / USA

information circle12 Day Weather and Surf, issued 7 pm Wednesday 19 Mar 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
1.0° C
 (Which is 1.2°C colder than average for this time of year)

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

The surf forecast for Southwick Beach State Park over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Mar 21) at 2AM. The primary swell is predicted to be 2.1m and 8s period. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Southwick Beach State Park in the next 12 days are 2.2m 8s and forecast to arrive on Saturday (Mar 22) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Sunday (Mar 23) at 5PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Fri 21st Mar)7ft (2.1m) 8s
Best Surf 5AM (Sun 23rd Mar)5ft (1.6m) 7s
Most Powerful11PM (Sat 22nd Mar)7ft (2.2m) 8s

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 
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Mon
31
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
1
0
0
0
0
0
0
1
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 (?)
0.4
SSE
0.4
SSE
0.4
WSW
2.1
NW
1.8
NW
1.1
WNW
0.2
WNW
0.4
SW
1.4
WNW
1.8
NW
1.1
NW
0.6
NW
0.1
W
0.3
SE
0.2
SSW
0.4
WSW
0.8
WNW
1
WNW
——————————————————
Period(s) (?)223876426765422456------------------
Wave
Graph
(?)Metric surfscale
Energy (?)2235322758822165365822101053768000000000000000000
Wind
(km/h)
40
SSE
35
S
25
SW
20
WNW
25
NW
25
W
25
SSE
25
S
40
W
25
NNW
10
NNW
5
WSW
35
SE
25
WSW
20
W
35
SW
35
WSW
25
W
20
WNW
20
WNW
30
W
25
SW
25
W
10
WSW
5
S
20
W
30
W
30
WNW
30
NW
20
NW
20
NNE
20
NNW
15
NW
15
N
20
NW
25
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		oncrosscrosscross-
on		cross-
on		cross-
on		cross-
on		cross-
off		cross-
off		glasscrossoncross-
on		ononcross-
on		cross-
on		cross-
on		cross-
on		oncross-
on		onglasscross-
on		cross-
on		cross-
on		crosscrosscross-
off		cross-
off		crosscross-
off		cross-
off		cross-
off
High Tide
/ height (m)
n/a
n/a
n/a
n/a
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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Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Mon
31
Sunrise-7:07--7:07--7:05--7:03--7:01--6:58--6:58--6:56--6:54--6:52--6:50--6:48-
Sunset--7:15--7:16--7:19--7:20--7:21--7:22--7:23--7:24--7:25--7:27--7:28--7:30
cloudcloudmod rainlight snowclearclearclearlight rainrain showerspart cloudclearclearlight snowlight rainclearcloudcloudcloudcloudpart cloudpart cloudsnow showerspart cloudcloudlight snowcloudpart cloudpart cloudclearpart cloudpart cloudpart cloudcloudpart cloudpart cloudcloud
Rain (mm)
--102---12---15----------------------
Temp. °C141296032441-4-33563222022-100032-40-1-7-3-3-6-3
Feels °C (?)7441-8-4-3-3-4-9-9-7-6-3-1-4-7-6-5-7-6-4-9-7-5-6-5-6-13-8-8-14-10-10-14-11

Short Range Forecast: Moderate rain (total 15mm) heaviest on Thu afternoon, then becoming colder with a dusting of snow on Thu night. Icy conditions (max 14°C on Wed night, min -2°C on Fri morning). Winds decreasing (strong winds from the SSE on Wed night, light winds from the SW by Fri night).

Days 3-6 Weather Summary A dusting of snow turning to light rain (total 6mm) on Mon morning. Icy conditions (max 6°C on Mon afternoon, min -5°C on Sat night). Winds decreasing (fresh winds from the WNW on Sat night, calm by Sun afternoon).

Days 6-9 Weather Summary A dusting of new snow. Icy conditions (max 3°C on Fri afternoon, min -1°C on Tue night). Winds decreasing (fresh winds from the W on Wed night, calm by Thu night).

Long Range Forecast: Mostly dry. Icy conditions (max 2°C on Fri night, min -8°C on Sun morning). Mainly fresh winds.

  • 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:
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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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