Big Tree Beach is a beach in Islesboro, Maine.
Islesboro, Maine · live parking & conditions · updated June 19, 2026
In a typical year July is the warmest month here, with highs near 74°F, and it's reliably beach weather July to August. Tap Big Tree Beach on the map for live surf, wind, water temperature, UV and tide times.
Open Big Tree Beach on the map →