Water Temperature of San Francisco Bay in San Francisco, CA

Current Water Temperature

57.0°F

Measurement Time: Saturday, November 29, 2025, 11:00 PM PST

Temperature Locations

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Local Points of Interest

Alcatraz Island

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San Francisco Bay

Station Name: SAN FRANCISCO BAY A NE SHORE ALCATRAZ ISLAND CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet / 0 meters

Nearest Address:
Alcatraz Island
San Francisco, CA 94133-1312
San Francisco County

GPS Coordinates: 37.8272222, -122.4216667

Nearby Water Temperatures

San Francisco Bay, San Francisco, CA (2.1 mi)
San Francisco Bay, San Francisco, CA (2.8 mi)
Rodeo Pond, Sausalito, CA (5.6 mi)
Rodeo Lagoon, Sausalito, CA (5.8 mi)
Rodeo Lagoon, Sausalito, CA (6.1 mi)
San Francisco Bay, Richmond, CA (7.1 mi)
San Francisco Bay, San Rafael, CA (7.6 mi)
San Francisco Bay, Alameda, CA (7.7 mi)
San Francisco Bay, San Mateo, CA (16.7 mi)
Carquinez Strait, Martinez, CA (21.6 mi)
Pacific Ocean, San Francisco, CA (23.3 mi)
Redwood Creek, Redwood City, CA (25.0 mi)
Suisun Bay, Concord, CA (26.1 mi)
San Francisco Bay, Menlo Park, CA (27.7 mi)
Drakes Bay, Inverness, CA (32.2 mi)

Weather for San Francisco, California

Current Weather

45°F
Mist
Conditions: Mist
Humidity: 90%
Feels Like: 44.9°F
Wind: ESE 2.2 mph
Wind Gusts: 6.7 mph
Pressure: 30.08 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 6 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Sun
H: 54°F
L: 43°F
Partly Cloudy
Mon
H: 61°F
L: 46°F
Sunny
Tue
H: 61°F
L: 50°F
Sunny
Wed
H: 60°F
L: 52°F
Sunny
Thu
H: 60°F
L: 51°F

Air Quality

AQI: 1 - Good
PM2.5: 10.15 μg/m3
PM10: 14.55 μg/m3
Carbon Monoxide: 166.85 μg/m3
Nitrogen Dioxide: 7.05 μg/m3
Sulphur Dioxide: 3.55 μg/m3
Ozone: 67 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 11:58 AM
Sunset: 4:51 PM
Daylight: 9 hrs 45 mins
Moonrise: 1:49 PM
Moon Transit: 8:23 PM
Moonset: 1:58 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 78.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:53 PM - 10:23 PM

Minor Periods

1:19 PM - 2:49 PM
1:28 AM - 2:58 AM

Action Rating: 2 out of 5

Beach Hazards Statement issued November 29 at 8:46PM PST until November 30 at 10:00PM PST by NWS San Francisco CA

Effective: Sat November 29, 2025, 8:46 PM
Expires: Sun November 30, 2025, 6:00 AM

* WHAT...Moderate period northwesterly swell will result in an increased risk for sneaker waves and rip currents. Breaking waves of 13 to 16 feet are expected. * WHERE...San Francisco, Coastal North Bay Including Point Reyes National Seashore, San Francisco Peninsula Coast, Northern Monterey Bay and Southern Monterey Bay and Big Sur Coast Counties. * WHEN...Through Sunday evening. * IMPACTS...Sneaker waves can unexpectedly run significantly farther up the beach than normal, including over rocks and jetties. Rip currents are typically more frequent and stronger in the vicinity of jetties, inlets, and piers.

Dangerous conditions are forecast along the shoreline. Hazards include sneaker waves, strong rip currents, and large breaking waves. Stay off the rocks and NEVER turn your back on the ocean!


Beach Hazards Statement issued November 30 at 1:28AM PST until November 30 at 10:00PM PST by NWS San Francisco CA

Effective: Sun November 30, 2025, 1:28 AM
Expires: Sun November 30, 2025, 3:00 PM

* WHAT...Moderate period northwesterly swell will result in an increased risk for sneaker waves and rip currents. Breaking waves of 13 to 16 feet are expected. * WHERE...Pacific Coast beaches. * WHEN...Through 10 PM PST this evening. * IMPACTS...Sneaker waves can unexpectedly run significantly farther up the beach than normal, including over rocks and jetties. Rip currents are typically more frequent and stronger in the vicinity of jetties, inlets, and piers.

Dangerous conditions are forecast along the shoreline. Hazards include sneaker waves, strong rip currents, and large breaking waves. Stay off the rocks and NEVER turn your back on the ocean!
Sunday, November 30, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 48.6°F
Average Humidity: 89%
Chance of Rain: 0%
Wind: 6.7 mph
UV Index: 0.4

Air Quality

AQI: 2 - Moderate
PM2.5: 24.03 μg/m3
PM10: 26.09 μg/m3
Carbon Monoxide: 350.89 μg/m3
Nitrogen Dioxide: 30.64 μg/m3
Sulphur Dioxide: 5.08 μg/m3
Ozone: 28.92 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 11:58 AM
Sunset: 4:51 PM
Daylight: 9 hrs 45 mins
Moonrise: 1:49 PM
Moon Transit: 8:23 PM
Moonset: 1:58 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 78.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:53 PM - 10:23 PM

Minor Periods

1:19 PM - 2:49 PM
1:28 AM - 2:58 AM

Action Rating: 2 out of 5

Monday, December 1, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 51.9°F
Average Humidity: 80%
Chance of Rain: 0%
Wind: 7.4 mph
UV Index: 0.4

Air Quality

AQI: 2 - Moderate
PM2.5: 17.45 μg/m3
PM10: 19.54 μg/m3
Carbon Monoxide: 406.49 μg/m3
Nitrogen Dioxide: 34.97 μg/m3
Sulphur Dioxide: 6.11 μg/m3
Ozone: 27.52 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 11:58 AM
Sunset: 4:51 PM
Daylight: 9 hrs 44 mins
Moonrise: 2:18 PM
Moon Transit: 9:15 PM
Moonset: 3:10 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 87.1%

Best Times for Fishing or Hunting

Major Periods

3:50 AM - 6:20 AM
8:45 PM - 11:15 PM

Minor Periods

1:48 PM - 3:18 PM
2:40 AM - 4:10 AM

Action Rating: 2 out of 5

Tuesday, December 2, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 53.9°F
Average Humidity: 77%
Chance of Rain: 0%
Wind: 7.4 mph
UV Index: 0.4

Air Quality

AQI: 2 - Moderate
PM2.5: 23.74 μg/m3
PM10: 25.59 μg/m3
Carbon Monoxide: 356.85 μg/m3
Nitrogen Dioxide: 44.22 μg/m3
Sulphur Dioxide: 7.01 μg/m3
Ozone: 12.92 μg/m3

Astronomical

Sunrise: 7:08 AM
Sun Transit: 12:00 AM
Sunset: 4:51 PM
Daylight: 9 hrs 43 mins
Moonrise: 2:52 PM
Moon Transit: 10:12 PM
Moonset: 4:27 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.7%

Best Times for Fishing or Hunting

Major Periods

4:44 AM - 7:14 AM
12:00 AM - 12:00 AM

Minor Periods

2:22 PM - 3:52 PM
3:57 AM - 5:27 AM

Action Rating: 3 out of 5

Wednesday, December 3, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 55.3°F
Average Humidity: 61%
Chance of Rain: 0%
Wind: 7.6 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 7.02 μg/m3
PM10: 9.99 μg/m3
Carbon Monoxide: 228.02 μg/m3
Nitrogen Dioxide: 12.89 μg/m3
Sulphur Dioxide: 3.01 μg/m3
Ozone: 58.84 μg/m3

Astronomical

Sunrise: 7:09 AM
Sun Transit: 12:00 AM
Sunset: 4:51 PM
Daylight: 9 hrs 42 mins
Moonrise: 3:34 PM
Moon Transit: 11:15 PM
Moonset: 5:46 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.1%

Best Times for Fishing or Hunting

Major Periods

5:42 AM - 8:12 AM
12:00 AM - 12:00 AM

Minor Periods

3:04 PM - 4:34 PM
5:16 AM - 6:46 AM

Action Rating: 4 out of 5

Thursday, December 4, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 54.8°F
Average Humidity: 48%
Chance of Rain: 0%
Wind: 6.9 mph
UV Index: 4

Air Quality

AQI: 1 - Good
PM2.5: 4.13 μg/m3
PM10: 10.4 μg/m3
Carbon Monoxide: 159.71 μg/m3
Nitrogen Dioxide: 12.44 μg/m3
Sulphur Dioxide: 2.55 μg/m3
Ozone: 61.23 μg/m3

Astronomical

Sunrise: 7:09 AM
Sun Transit: 12:00 AM
Sunset: 4:51 PM
Daylight: 9 hrs 41 mins
Moonrise: 4:26 PM
Moon Transit: 12:00 AM
Moonset: 7:06 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
6:46 AM - 9:16 AM

Minor Periods

3:56 PM - 5:26 PM
6:36 AM - 8:06 AM

Action Rating: 4 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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