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Grand Marias location map

Grand Marias surf Forecast / Lake Superior / USA

12 Day Weather and Surf, issued 7 pm Monday 29 Apr 2024 EDT
Forecast update in  hr  min  s Update imminent 
Grand Marias surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Grand Marias sea temperature is 2.5°C (Statistics for 29 Apr 1981-2005 - mean: 2.4 °C max: 3.7 °C min: 1.2 °C)
  • 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>
Grand Marias surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Grand Marias sea temperature is 2.5°C (Statistics for 29 Apr 1981-2005 - mean: 2.4 °C max: 3.7 °C min: 1.2 °C)

Best Forecast Surf Conditions for Grand Marias this week:

The surf forecast for Grand Marias over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Apr 30) at 5PM. The primary swell is predicted to be 1.1m and 6s period. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Grand Marias in the next 12 days are 1.1m 6s and forecast to arrive on Tuesday (Apr 30) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Monday (Apr 29) at 11PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Tue 30th Apr)3.5ft (1.1m) 6s
Best Surf 5PM (Tue 30th Apr)3.5ft (1.1m) 6s
Most Powerful 5PM (Tue 30th Apr)3.5ft (1.1m) 6s

Table - best surf conditions forecast for Grand Marias over the next 12 days.

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Quick surf report for Grand Marias:

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Hourly12 Days
Lake Superior Surf
Print Surf Table
Updates in  hr  min  s Update imminent 
Tuesday
30
Wednesday
01
Thursday
02
Friday
03
Saturday
04
Sunday
05
Monday
06
Tuesday
07
Wednesday
08
Thursday
09
Friday
10
Sat
11
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
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
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.5
NE
0.6
WSW
1.1
W
0.3
WNW
1
SE
0.5
SE
0.7
W
0.4
NNW
0.4
E
0.7
ESE
1.2
SE
0.9
SE
0.7
S
0.8
SSW
0.1
W
0.8
SSW
0.7
SW
0.7
WSW
——————————————————
Period(s) (?)546555543455445444------------------
Wave
Graph
(?)Metric surfscale
Energy (?)140854002453000001000000000000000000000
Wind
(km/h)
15
S
15
WNW
10
NW
20
ESE
20
SSW
30
W
20
NW
10
NNE
15
E
30
SE
15
SW
15
NNW
15
SSW
5
W
15
E
25
NW
25
WNW
15
NW
10
SSW
5
SSW
10
S
10
ENE
15
ENE
15
NE
15
E
40
E
40
ENE
30
ENE
30
NE
15
NNW
15
N
15
W
15
WNW
20
SW
25
WNW
20
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcrosscross-
on		cross-
off		cross-
off		crosscross-
on		oncrosscross-
off		cross-
off		cross-
on		cross-
off		crosscrosscross-
on		cross-
on		cross-
on		offoffoffcrosscross-
on		cross-
on		crosscrosscrosscross-
on		cross-
on		ononcrosscrosscross-
off		crosscross-
on
High Tide
/ height (m)
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Low Tide
/ height (m)
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Tuesday
30
Wednesday
01
Thursday
02
Friday
03
Saturday
04
Sunday
05
Monday
06
Tuesday
07
Wednesday
08
Thursday
09
Friday
10
Sat
11
Sunrise-6:30--6:28--6:26--6:24--6:24--6:22--6:20--6:18--6:18--6:16--6:15--6:13-
Sunset--8:52--8:53--8:55--8:57--8:58--9:00--9:00--9:01--9:04--9:05--9:06--9:07
light raincloudcloudpart cloudrain showersrain showerspart cloudcloudcloudheavy rainrain showersclearclearpart cloudcloudpart cloudpart cloudclearpart cloudlight rainlight rainlight rainpart cloudclearpart cloudmod rainheavy rainmod rainlight rainrain showersclearclearcloudpart cloudpart cloudpart cloud
Rain (mm)
3---21---221--------242---719651------
Temp. °C8768111076781014101110106767997109777678812111010
Feels °C (?)542176033151089670345773650-2-1-11348645

Short Range Forecast: Light rain (total 6mm), mostly falling on Mon night. Very mild (max 11°C on Wed morning, min 5°C on Tue morning). Winds increasing (calm on Tue night, fresh winds from the W by Wed afternoon).

Days 3-6 Weather Summary Heavy rain (total 23mm), heaviest during Thu night. Very mild (max 14°C on Fri afternoon, min 5°C on Sat night). Winds decreasing (fresh winds from the SE on Thu night, light winds from the ENE by Fri night).

Days 6-9 Weather Summary Heavy rain (total 34mm), heaviest during Wed afternoon. Very mild (max 10°C on Tue afternoon, min 5°C on Sun night). Winds increasing (calm on Sun night, strong winds from the ENE by Wed afternoon).

Long Range Forecast: Moderate rain (total 12mm), heaviest on Wed night. Very mild (max 12°C on Fri afternoon, min 5°C on Thu night). Winds decreasing (fresh winds from the ENE on Wed night, light winds from the WNW by Thu night).

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Grand Marias 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 Grand Marias Surf forecast

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

Grand Marias is 100 km (62 miles) from 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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