Typical July highs at Picnic Rocks Beach reach about 73°F, with reliable beach weather July to August. Picnic Rocks Beach is located in Marquette, Michigan.
Marquette, Michigan · live parking & conditions · updated June 19, 2026
In a typical year July is the warmest month here, with highs near 73°F, and it's reliably beach weather July to August. Tap Picnic Rocks Beach on the map for live surf, wind, water temperature, UV and tide times.
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