Typical August highs at Arched Rock Beach reach about 74°F, with reliable beach weather July to September. Arched Rock Beach is located in Russian River-Sonoma Coast, California.
Russian River-Sonoma Coast, California · live parking & conditions · updated June 19, 2026
In a typical year August is the warmest month here, with highs near 74°F, and it's reliably beach weather July to September. Tap Arched Rock Beach on the map for live surf, wind, water temperature, UV and tide times.
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