When is boating season on the Great Lakes?

June through September is the reliable warm-water season, with July and August being the warm, settled heart of the year. The water stays cold well into spring, so the dependable window is summer.

Is the water warm enough to boat in spring on the Great Lakes?

Not really. The water stays cold well into spring and is dangerously cold even when the air warms up. If you go early, dress for immersion and always wear a life jacket.

Are the Great Lakes rough for boating?

They can be. The big lakes build steep waves fast when the wind picks up. Watch the wind and the marine forecast before heading out, even in the calmer summer months.

Best time to go · Great Lakes & Inland

Great Lakes & Inland

The Great Lakes and inland reservoirs have a classic summer season. Water stays cold well into spring; July and August are the warm, settled heart of the year.

See it month by month

Month by month

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When to go & why

June–September: the reliable warm-water season
Spring water is dangerously cold, so wear a life jacket
Big lakes build steep waves fast, so watch the wind

Notable months

April: Water still cold, so dress for immersion
July: Warm water, long days, settled weather

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Common questions

When is boating season on the Great Lakes?: June through September is the reliable warm-water season, with July and August being the warm, settled heart of the year. The water stays cold well into spring, so the dependable window is summer.
Is the water warm enough to boat in spring on the Great Lakes?: Not really. The water stays cold well into spring and is dangerously cold even when the air warms up. If you go early, dress for immersion and always wear a life jacket.
Are the Great Lakes rough for boating?: They can be. The big lakes build steep waves fast when the wind picks up. Watch the wind and the marine forecast before heading out, even in the calmer summer months.