Archimedes Banya
Naturist sauna or spa in California, United States
Archimedes Banya is a clothing-optional sauna and spa in California, United States. It lies within India Basin Shoreline Park, managed by San Francisco, City and County of. Average air temperatures peak in September at 16°C (61°F), and the best time to visit is March to November. There are 8 other naturist places within 50 km (31 mi), the closest being Baker Beach (12 km (7.6 mi)).
Weather and water temperature at Archimedes Banya
Tap a month. Averages: air 2001–2025 (NASA POWER), sea 1991–2020 (NOAA OISST).
| Month | Air | Rain |
|---|---|---|
| January | 11°C | 88 mm |
| February | 11°C | 87 mm |
| March (best) | 12°C | 74 mm |
| April (best) | 12°C | 38 mm |
| May (best) | 13°C | 17 mm |
| June (best) | 14°C | 6 mm |
| July (best) | 15°C | 2 mm |
| August (best) | 16°C | 2 mm |
| September (best) | 16°C | 4 mm |
| October (best) | 15°C | 26 mm |
| November (best) | 13°C | 55 mm |
| December | 11°C | 115 mm |
Visiting
- Part of India Basin Shoreline Park, managed by San Francisco, City and County of · public access: open.
- Website: banyasf.com
- Coordinates: 37.73055, -122.37273 · OpenStreetMap
- Local law: is public nudity legal in California?
- New to nude saunas? Read what FKK and textile-free saunas mean.
Naturist places near Archimedes Banya
- 1Baker Beach nude beach · CaliforniaToleratedSea 14°C in August
- 2Marshall's Beach nude beach · CaliforniaClothing optionalSea 14°C in August
- 3Mile Rock Beach nude beach · CaliforniaToleratedSea 14°C in August
- 4South Rodeo Beach nude beach · CaliforniaToleratedSea 14°C in August
- 5Devils Slide Beach nude beach · CaliforniaToleratedSea 14°C in August
- 6Gray Whale Cove State Beach nude beach · CaliforniaListedSea 14°C in August
- 7Muir Beach nude beach · CaliforniaClothing optionalSea 14°C in August
- 8Slide Ranch North Beach nude beach · CaliforniaToleratedSea 14°C in August
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 Archimedes Banya clothing optional?
Archimedes Banya is listed as "clothing optional" according to Archimedes Banya: Clothing Guidelines. Rules can change, and clothing-optional zones are often only part of a site, so look for signs on arrival and follow local rules. You can check what applies in United States before you go.
When is the best time to visit Archimedes Banya?
Based on 2001–2025 climate averages (NASA POWER), the most comfortable months are March to November. July averages 15°C (59°F) and January 11°C (51°F).
What other naturist places are near Archimedes Banya?
The closest are Baker Beach (12 km (7.6 mi)), Marshall's Beach (12 km (7.6 mi)) and Mile Rock Beach (13 km (8.3 mi)).
Sources
Status checked on 2026-10-31 against Archimedes Banya: Clothing Guidelines (the venue or land manager); see how we verify. Data updated 2026-10-31. All data sources and licenses. © OpenStreetMap contributors.