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Muir Beach

Shared BeachFinder spot: compare live conditions, water temperature, wind, UV, waves, currents, amenities and nearby alternatives before you leave.

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Weather and marine data: Open-Meteo

Muir Beach

Muir Beach extends along the coast of Marin County, Northern California, about 25 kilometers north of San Francisco. Nestled in a protected Pacific cove, this beach is part of a rugged coastline where sandstone cliffs and rocky outcrops dominate, interspersed with small sandy bays. The area remains largely wild, with inland areas covered by chaparral and sparse coastal forest, far from the dense urbanization of the bay. The beach itself forms a narrow crescent of fine sand, framed by massive rocks that plunge directly into the cold waters of the Pacific. Its character remains very distinct from its immediate neighbors: Slide Ranch North Beach, 2.7 kilometers to the north, offers easier access and tourist facilities, while Tennessee Beach, 3 kilometers to the south, attracts more coastal hikers. Muir Beach retains a more secluded atmosphere, with a gentle slope towards the water and direct exposure to open ocean swells. Visitors discover an atmosphere of coastal tranquility, where the constant surf and salty spray dominate the sensory experience. No services are present on site. The beach is not supervised and does not have the Blue Flag label. Access is mainly on foot via coastal trails from adjacent lands, which naturally limits crowds. Swimming conditions remain demanding due to coastal currents and water temperature, typical of the Northern California Pacific.

About this spot

The name 'Muir' honors John Muir, the Scottish-American naturalist and writer who explored and documented California's wild landscapes in the 19th century. Although Muir primarily worked in the Sierra Nevada, his legacy of defending intact coastal lands hangs over this Marin County coastline. The beach itself was formed by the continuous erosion of sandstone cliffs, a process that continues to shape the coast. During winter storms, waves break with remarkable power, reshaping the sand profile and reminding visitors of the raw power of the North Pacific.

Updated 5/9/2026

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Conditions

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Other nearby spots

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Muir Beach water temperature today | Wind, UV, Surf & Water Quality | BeachFinder