Updated
San Francisco Bay
Bay
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Current water conditions
Live data from NOAA buoy AAMC1 (4.3 mi away), as of Aug 21, 12:00 AM UTC. Conditions are for general information only and can change quickly — always judge the water in person and follow posted advisories before swimming.
Weather at San Francisco Bay
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Frequently asked questions
- Where is San Francisco Bay?
- San Francisco Bay is a bay in California.
- What is the water temperature at San Francisco Bay?
- As of August 21, 2026, the water temperature at San Francisco Bay in California is 69°F (21°C), measured by NOAA buoy AAMC1, 4.3 miles away.
- Can you swim at San Francisco Bay?
- There is no fixed answer for San Francisco Bay: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at San Francisco Bay in California. Check current water conditions before you go, and follow posted signs and local guidance.
Visitor Reviews
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Been here? A quick note helps the next visitor plan their day. Handy things to mention:
Best Times to Visit
- ›Weekday mornings (8–10 AM) are typically less crowded
- ›Check the forecast 2–3 days ahead for best planning
- ›Avoid holiday weekends for a quieter experience
Location & Contact
California
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