Isle Royale NP: every diver must register for a dive permit in person at the Houghton, Rock Harbor or Windigo visitor center before diving; park and visitor centers are seasonal (about mid-Apr–Oct).
Source: nps.gov. Checked Oct 5, 2026
Permit or reservation needed · Last confirmed Oct 5, 2026
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32 sourced words
As of Wed, Oct 28, 12:06 AM EDT at Glenlyon: water temperature about 63.7°F17.6°C (Modeled by Scuba Nearby estimate); wind 10 mph16 km/h (Modeled); waves 2.1 ft0.6 m (Modeled). Dive score 100 of 100, Looks favorable (limited data).
Looks favorable (limited data)
Limited data
100 out of 100
65% of inputs used
Water temperature
63.7°F17.6°C
Air temperature
49.3°F9.6°C
Estimated range: Not enough data
No active NWS alerts for this point
Marine zone LSZ264: Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border
Wed 12 AM
49.3°F9.6°C
Wind 10 mph16 km/h
2% rain
Wed 3 AM
49.8°F9.9°C
Wind 6 mph10 km/h
1% rain
Wed 6 AM
50.2°F10.1°C
Wind 14 mph23 km/h
2% rain
Wed 9 AM
49.3°F9.6°C
Wind 11 mph17 km/h
3% rain
Wed 12 PM
49.1°F9.5°C
Wind 11 mph17 km/h
0% rain
Wed 3 PM
48.9°F9.4°C
Wind 4 mph7 km/h
0% rain
Wed 6 PM
48.9°F
Each day uses the same readings as the score above, with that morning’s forecast. Forecast: Open-Meteo Weather API.
Three-day trend: unknown
Wed, Oct 28
100 · Looks favorable (limited data)
Wind 21 mph · Rain 82%
Thu, Oct 29
62 · Caution
Wind 28 mph · Rain 80%
Not confirmed yet. A best-months line is shown only when a source states one.
Times shown in the site's local time (Eastern Daylight Time)
Conditions are informational, not a dive plan. Check with the site or operator, dive within your training, and make your own go/no-go decision.
Reported by divers, not measured by sensors. Reports from the last 14 days can nudge clarity, and they stay labeled as diver-reported.
Nobody has filed a report here yet. The sensors stay in charge until a diver does.
Conditions are informational, not a dive plan. Check with the site or operator, dive within your training, and make your own go/no-go decision.
Wind
10 mph16 km/h
typical error ±3 mphtypical error ±4.83 km/h
Gusts
17 mph27 km/h
Wave height
2.1 ft0.6 m
typical error ±0.55 fttypical error ±0.17 m
Wave period
4 sec4 sec
Lake level
UnavailableNo live sensor close enough to this site
Wind 10 mph16 km/h
4% rain
Wed 9 PM
50.7°F10.4°C
Wind 15 mph25 km/h
44% rain
Modeled Forecast from Open-Meteo Weather API