Surf Forecasts:
How big are the waves at Grand Marias today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 2.5ft (0.8m), 4s period with NNE swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 3ft (0.9m), 5s period with NNE swell.
- Evening surf: Evening surf (20 Sep, local time) - 1.5ft (0.5m), 5s period with N swell.
The current surf forecast for Grand Marias at 3PM is: 0.9m 5s primary swell from a North-northeast direction (forecast issued at 07:00am September 20). An open ocean swell of 0.1m 6s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 2.5ft (0.8m) | 4s |
| Afternoon (20 Sep) | 3ft (0.9m) | 5s |
| Evening (20 Sep) | 1.5ft (0.5m) | 5s |
Table - waves today at Grand Marias. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 15°C on Sun morning, min 9°C on Mon morning). Mainly fresh winds. | |||||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||||||||
5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | N 3 | NNE 4 | NNE 5 | NNE 5 | NNE 5 | N 5 | NE 4 | ENE 5 | ENE 5 | E 4 | E 4 | E 4 | ENE 3 | ENE 3 | NE 3 | ENE 3 | E 4 | E 4 | E 4 | E 4 | ESE 4 | ESE 3 | — |
Wave Graph  | |||||||||||||||||||||||
 kJ | 2 | 15 | 46 | 42 | 34 | 23 | 19 | 44 | 29 | 19 | 11 | 7 | 1 | 1 | 1 | 4 | 7 | 0 | 0 | 5 | 0 | 0 | 0 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | on | on | cross-on | cross | cross-off | cross | cross | cross | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | cross | cross | cross-on | cross | cross-off |
High Tide | |||||||||||||||||||||||
Low Tide | |||||||||||||||||||||||
 |  | | |  |  | | |  |  | | | | | | | | | | | | | | |
 | 7:28 | — | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — | — | 7:30 | — | — | — | — | — | — |
 | — | — | — | — | 7:45 | — | — | — | — | — | — | — | 7:44 | — | — | — | — | — | — | — | 7:42 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 15 | 15 | 14 | 13 | 14 | 12 | 10 | 9 | 11 | 13 | 13 | 12 | 13 | 12 | 10 | 9 | 12 | 14 | 15 | 14 | 12 |
Feels °C | 12 | 10 | 9 | 10 | 9 | 9 | 8 | 7 | 5 | 4 | 6 | 8 | 8 | 7 | 9 | 8 | 6 | 5 | 8 | 9 | 10 | 10 | 8 |
Swell 1 Height (m) Direction Period (s) | — | — | — | E 6 | NE 5 | N 5 | NNW 5 | N 4 | — | — | — | ESE 4 | ESE 4 | — | — | — | NE 4 | — | — | SE 4 | ESE 4 | ESE 3 | — |
| kJ | — | — | — | 1 | 12 | 12 | 7 | 1 | — | — | — | 1 | 1 | — | — | — | 1 | — | — | 1 | 3 | 1 | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 4 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 3 | NNE 4 | NNE 5 | NNE 5 | NNE 5 | N 5 | NE 4 | ENE 5 | ENE 5 | E 4 | E 4 | E 4 | ENE 3 | ENE 3 | NE 3 | ENE 3 | E 4 | E 4 | E 4 | E 4 | — | — | — |
| kJ | 2 | 15 | 46 | 42 | 34 | 23 | 19 | 44 | 29 | 19 | 11 | 7 | 1 | 1 | 1 | 4 | 7 | 9 | 9 | 5 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 1538 | 1538 | 1279 | 1594 | 2378 | 672 | 1195 | 1209 | 1226 | 1276 | 1382 | 1693 | 1693 | 1694 | 1771 | 1771 | 1545 | 1687 | 1687 | 1777 | 2737 | 2737 | 1544 |
Best forecast wave conditions in Lake Superior | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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