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Union Bay Surf Forecast
/ Lake Superior (10 breaks) / Michigan (11 breaks) /
Surf Forecasts:
Union Bay surfForecast / Lake Superior / USA
48hr Weather and Surf, issued 12 pm Saturday 21 Feb 2026 ESTForecast update in hr min s Forecast update imminent
Union Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Union Bay sea temperature is
0.2° C
(Which is 1.9°C colder than average for this time of year)How big are the waves at Union Bay today?
The current surf forecast for Union Bay at 8PM is: 0.4m 6s primary swell from a East-northeast direction and 0.1m 6s secondary swell from a Northeast direction, 0.6m 4s secondary swell from a North-northwest direction (forecast issued at 12:00pm February 21). The wind direction is predicted to be cross-onshore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Feb) | 3ft (0.9m) | 4s |
| Afternoon (21 Feb) | 1.5ft (0.5m) | 6s |
| Evening (21 Feb) | 2.5ft (0.7m) | 4s |
Table - waves today at Union Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 4 | 6 | 6 | 6 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 5 | 5 | 5 | 4 | 4 | 5 | 5 | 5 | 4 | 4 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 30 | 22 | 21 | 11 | 27 | 48 | 77 | 83 | 119 | 104 | 109 | 180 | 180 | 139 | 109 | 75 | 37 | 9 | 3 | 1 | 1 | 1 | 0 | 0 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- off | cross- off | cross- off | off |
High 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 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 | 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 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 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 | 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 n/a | n/a n/a | n/a n/a | n/a n/a |
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | - | 7:50 | - | - | - | - | - | - | - | 7:48 | - | - | - | - | - | - | - |
| Sunset | - | - | 6:30 | - | - | - | - | - | - | - | 6:32 | - | - | - | - | - | - | - | 6:34 | - | - | - | - | - |
 | | |  | | | |  |  | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | -6 | -5 | -5 | -4 | -4 | -4 | -5 | -6 | -6 | -6 | -6 | -7 | -8 | -12 | -14 | -16 | -16 | -15 | -14 | -15 | -14 | -12 | -8 | -7 |
| Feels °C (?) | -12 | -11 | -12 | -10 | -11 | -11 | -13 | -14 | -14 | -14 | -14 | -15 | -17 | -20 | -22 | -23 | -23 | -21 | -19 | -20 | -20 | -18 | -14 | -14 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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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 Union Bay 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.
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