Muir Beach
Nude beach in California, United States
Muir Beach is a clothing-optional beach in California, United States. It lies within Golden Gate National Recreation Area, managed by National Park Service. The sea is warmest in September at about 14°C (58°F) and coolest in April (12°C (53°F)). Average air temperatures peak in September at 18°C (64°F). There are 8 other naturist places within 50 km (31 mi), the closest being Slide Ranch North Beach (2.7 km (1.7 mi)).
Weather and water temperature at Muir Beach
Tap a month. Averages: air 2001–2025 (NASA POWER), sea 1991–2020 (NOAA OISST).
| Month | Air | Sea | Rain |
|---|---|---|---|
| January | 9°C | 12°C | 100 mm |
| February | 10°C | 12°C | 101 mm |
| March | 11°C | 12°C | 82 mm |
| April | 12°C | 12°C | 42 mm |
| May | 14°C | 12°C | 18 mm |
| June | 16°C | 12°C | 6 mm |
| July | 17°C | 13°C | 1 mm |
| August | 17°C | 14°C | 1 mm |
| September | 18°C | 14°C | 4 mm |
| October | 16°C | 14°C | 29 mm |
| November | 12°C | 13°C | 62 mm |
| December | 10°C | 12°C | 138 mm |
Not sure what the numbers mean? Here is how warm is warm enough to swim.
Visiting
- Part of Golden Gate National Recreation Area, managed by National Park Service · public access: open.
- Park information: National Park Service
- Website: nps.gov
- Campground nearby: Haypress Campground (2.8 km (1.7 mi))
- Coordinates: 37.85908, -122.57748 · OpenStreetMap
- Local law: is public nudity legal in California?
- Before you go, read our nude beach etiquette guide.
- First time? Read our guide to your first time at a nude beach.
Naturist places near Muir Beach
- 1Slide Ranch North Beach nude beach · CaliforniaToleratedSea 14°C in August
- 2South Rodeo Beach nude beach · CaliforniaToleratedSea 14°C in August
- 3Red Rock Beach nude beach · CaliforniaClothing optionalSea 14°C in August
- 4Mile Rock Beach nude beach · CaliforniaToleratedSea 14°C in August
- 5Marshall's Beach nude beach · CaliforniaClothing optionalSea 14°C in August
- 6Baker Beach nude beach · CaliforniaToleratedSea 14°C in August
- 7Palomarin Beach nude beach · CaliforniaClothing optionalSea 14°C in August
- 8Archimedes Banya naturist sauna or spa · California · best March to NovemberClothing optional
Status labels: Official · Naturist only · Clothing optional · Tolerated · Customary · Listed · Prohibited · Closed. Statuses come from open data and are not yet verified in person.
Frequently asked questions
Is Muir Beach clothing optional?
Muir Beach is listed as "clothing optional" according to OpenStreetMap (nudism=allowed). Rules can change, and clothing-optional zones are often only part of a beach, so look for signs on arrival and follow local rules. NudistMap has not yet verified this status in person. You can check what applies in United States before you go.
How warm is the water at Muir Beach?
Long-term sea surface temperatures (NOAA OISST, 1991–2020) range from 12°C (53°F) to 14°C (58°F) in September. Water at the shore can be a few degrees different.
What are the opening hours at Muir Beach?
Golden Gate National Recreation Area lists day-use hours of 6:00AM - Sunset. Check the National Park Service page for closures before you go.
What other naturist places are near Muir Beach?
The closest are Slide Ranch North Beach (2.7 km (1.7 mi)), South Rodeo Beach (5.3 km (3.3 mi)) and Red Rock Beach (6 km (3.7 mi)).
Sources
Status from OpenStreetMap (nudism=allowed). Not yet verified against an official source; local rules may have changed. Data updated 2026-10-31. Wikidata Q49322126 · All data sources and licenses. © OpenStreetMap contributors.