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Surf Forecasts:

Keweenaw Peninsula surfForecast / Lake Superior / USA

information circle12 Day Weather and Surf, issued 1 am Sunday 08 Mar 2026 EDT
Forecast update in hr  min  s Forecast update imminent
Keweenaw Peninsula surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Keweenaw Peninsula sea temperature is
0.2° C
 (Which is 1.6°C colder than average for this time of year)

Best Forecast Surf Conditions for Keweenaw Peninsula this week:

The surf forecast for Keweenaw Peninsula over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Mar 14) at 2AM. The primary swell is predicted to be 2.1m and 6s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Keweenaw Peninsula in the next 12 days are 5.5m 11s and forecast to arrive on Friday (Mar 13) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5.0m 10s period and expected on Friday (Mar 13) at 8AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sat 14th Mar)7ft (2.1m) 6s
Best Surf 2AM (Sat 14th Mar)7ft (2.1m) 6s
Most Powerful11AM (Fri 13th Mar)18ft (5.5m) 11s

Table - best surf conditions forecast for Keweenaw Peninsula over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table

Short Range Forecast A dusting of new snow. Icy conditions (max 6°C on Sun night, min -5°C on Tue night). Winds decreasing (strong winds from the WSW on Sun morning, calm by Mon night).

Days 3-6 Weather Summary A heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max -2°C on Thu night, min -6°C on Thu morning). Winds increasing (calm on Thu afternoon, strong winds from the E by Fri morning).

Sunday
08
Monday
09
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Saturday
14
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.5
WSW
2.1
SW
2
SW
1.6
WSW
0.8
WNW
0.6
N
0.8
NE
1.2
ENE
2.4
ENE
2.3
NE
1.8
NNE
1.6
NNE
0.9
N
0.7
WNW
3
SSE
5.5
ESE
3
NE
2.1
NNW
———
Period(s) (?)7876444577664471186---
Wave
Graph
(?)Metric surfscale
Energy kJ (?)00002192161525466222148290071961035300000
Wind
(km/h)
40
WSW
35
WSW
15
S
30
W
15
WNW
15
NE
20
NE
25
ENE
25
ENE
30
NE
35
NNE
30
N
20
NNW
5
N
35
ESE
40
ENE
30
NNE
10
W
25
WSW
25
WSW
15
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		cross-
off		crosscross-
on		oncross-
on		cross-
on		onononcross-
on		glasscrosscross-
on		oncross-
off		cross-
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
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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Sunday
08
Monday
09
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sunrise8:19--8:18--8:15--8:14--8:11--8:10--8:07--
Sunset-7:46--7:47--7:50--7:51--7:52--7:53--7:55-
part cloud
clear
part cloud
part cloud
part cloud
light snow
light snow
cloud
light snow
light snow
light snow
mod snow
cloud
part cloud
light snow
light snow
light snow
part cloud
part cloud
part cloud
cloud
Rain (mm)
---------------------
Temp. °C446532-2-3-2-4-5-5-6-6-2-3-4-4-3-1-2
Feels °C (?)-7-6-1-3-5-1-8-10-10-12-15-15-14-12-12-14-14-10-10-9-7
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Quick surf report for Keweenaw Peninsula:

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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 Keweenaw Peninsula 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.

View detailed surf forecast for Keweenaw Peninsula at:
surf-forecast.com

Information about the Keweenaw Peninsula Surf forecast

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

Keweenaw Peninsula is 118 km (73 miles) from the city of Marquette. If you plan a vacation in Lake Superior, look for hotels and other accommodation in Marquette. Marquette has rooms for a wide range of budgets as well as car hire and transport links.

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