Southwick Beach State Park surfForecast / Lake Ontario / USA

information circle12 Day Weather and Surf, issued 1 pm Monday 06 Oct 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
18.0° C
(Which is 3.5°C warmer than normal 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 Tuesday (Oct 07) at 11PM. The primary swell is predicted to be 1.3m and 6s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Southwick Beach State Park in the next 12 days are 1.7m 6s and forecast to arrive on Wednesday (Oct 08) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Wednesday (Oct 08) at 11AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Tue 7th Oct)4.5ft (1.3m) 6s
Best Surf11PM (Tue 7th Oct)4.5ft (1.3m) 6s
Most Powerful 8AM (Wed 8th Oct)5.5ft (1.7m) 6s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 57mm), heaviest during Tue night. Warm (max 26°C on Mon afternoon, min 4°C on Thu morning). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Very mild (max 19°C on Sat afternoon, min 6°C on Thu night). Wind will be generally light.

Mon
06
Tuesday
07
Wednesday
08
Thursday
09
Friday
10
Saturday
11
Sunday
12
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.3
WSW
1.6
NW
1.6
N
1.1
NNW
1.2
NNE
0.8
NNE
0.4
NE
Period(s) (?)---3665654-----------
Wave
Graph
(?)Metric surfscale
Energy kJ (?)00021840000000000000000
Wind
(km/h)
5
W
20
SSE
25
SSW
20
S
5
N
25
NNE
20
N
15
NNE
20
NNE
10
N
15
SSE
25
S
15
S
20
S
15
S
0
NE
10
E
10
ENE
20
NE
20
NE
15
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscross-
on
oncross-
on
cross-
off
cross-
off
cross-
off
offoffcross-
off
crosscross-
on
cross-
on
cross-
on
cross-
on
glasscross-
off
cross-
off
offoffoff
High Tide
/ height (m)
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
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n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
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
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Mon
06
Tuesday
07
Wednesday
08
Thursday
09
Friday
10
Saturday
11
Sunday
12
Sunrise--7:07--7:09--7:11--7:11--7:13--7:13--7:16
Sunset6:37--6:35--6:34--6:31--6:30--6:28--6:27--
clear
part cloud
heavy rain
heavy rain
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
cloud
cloud
mod rain
light rain
Rain (mm)
--141627--------------84
Temp. °C26231819171114127101010171513191615171413
Feels °C (?)252214181557516631299181312131110
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for Lake Ontario

  1. weather stationWind Update Continuing clean conditions at Southwick Beach State Park (light winds from the SW at Watertown Airport 29 km from Southwick Beach State Park). not gfswave

    Southwick Beach State Park
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29 km away, 2 h 2 min ago

7 km/h
SW
22.8
18.0
Air / Water (°C)
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Southwick Beach State Park surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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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