Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
Union Bay surfForecast / Lake Superior / USA
48hr Weather and Surf, issued 6 pm Friday 19 Dec 2025 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
4.0° C
(Which is slightly warmer than usual)How big are the waves at Union Bay today?
The current surf forecast for Union Bay at 12AM is: 0.1m 5s primary swell from a East direction (forecast issued at 06:00pm December 19). An open ocean swell of 2.1m 6s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Dec) | - | - |
| Afternoon (20 Dec) | - | - |
| Evening (20 Dec) | 8ft (2.5m) | 7s |
Table - waves today at Union Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | |||||||||||||||||||||
| 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 | 10 AM | 1 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 4 | 3 | 5 | 6 | 7 | 7 | 8 | 8 | 8 | 8 | 7 | 6 | 5 | 4 | 4 | 3 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 5 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 600 | 270 | 90 | 34 | 7 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | off | off | off | cross- off | cross- off | cross- off | cross | cross | cross | cross- on | cross- on | cross- on | cross | cross | cross- off | cross- off | cross- off | cross- off | off | off | off | off | cross- 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 |
Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 8:38 | - | - | - | - | - | - | - | 8:40 | - | - | - | - | - | - | - | 8:40 | - |
| Sunset | 5:10 | - | - | - | - | - | - | - | 5:10 | - | - | - | - | - | - | - | 5:12 | - | - | - | - | - | - | - |
 |  | | |  | | | | | | | | | | |  |  |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | -9 | -8 | -6 | -4 | -3 | -2 | -1 | -5 | -8 | -8 | -8 | -8 | -8 | -8 | -8 | -8 | -7 | -9 | -10 | -8 | -4 | 0 | 1 | 2 |
| Feels °C (?) | -12 | -14 | -14 | -12 | -11 | -10 | -11 | -18 | -21 | -21 | -20 | -19 | -17 | -16 | -16 | -15 | -13 | -15 | -16 | -13 | -9 | -5 | -4 | -3 |
- 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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