Water Temperature of San Francisco Bay in San Francisco, CA

Current Water Temperature

56.5°F

Measurement Time: Sunday, February 8, 2026, 11:00 AM PST

Temperature Locations

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Local Points of Interest

Alcatraz Island

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

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 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

57°F
Partly cloudy
Partly cloudy
56.5°F
56.3°F
96%
WSW 4.9 mph
7.5 mph
54.9°F
55°F
0 in
75%
9 mi
1026 mbar
0

Five Day Weather Forecast

Sunny
Sun
H: 62°F
L: 47°F
Overcast
Mon
H: 59°F
L: 49°F
Moderate rain
Tue
H: 55°F
L: 52°F
Heavy rain
Wed
H: 53°F
L: 51°F
Patchy rain nearby
Thu
H: 57°F
L: 52°F

Air Quality

AQI: 1 - Good
PM2.5: 4.65 μg/m3
PM10: 5.75 μg/m3
Carbon Monoxide: 168.85 μg/m3
Nitrogen Dioxide: 9.75 μg/m3
Sulphur Dioxide: 2.55 μg/m3
Ozone: 63 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 12:23 AM
Sunset: 5:41 PM
Daylight: 10 hrs 34 mins
Moonrise: 12:05 AM
Moon Transit: 5:15 AM
Moonset: 10:19 AM
Moon Phase: Last Quarter
Moon Illumination: 52.5%

Best Times for Fishing or Hunting

Major Periods

4:45 AM - 7:15 AM
12:40 AM - 3:10 PM

Minor Periods

9:49 AM - 11:19 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Sunday, February 8, 2026

Weather Forecast

Sunny
62.4°F
46.9°F
54.4°F
89%
0 in
0%
0%
9.6 mph
0.7


Air Quality

AQI: 2 - Moderate
PM2.5: 15.85 μg/m3
PM10: 19.89 μg/m3
Carbon Monoxide: 219.21 μg/m3
Nitrogen Dioxide: 23.11 μg/m3
Sulphur Dioxide: 4.73 μg/m3
Ozone: 48.68 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 12:23 AM
Sunset: 5:41 PM
Daylight: 10 hrs 34 mins
Moonrise: 12:05 AM
Moon Transit: 5:15 AM
Moonset: 10:19 AM
Moon Phase: Last Quarter
Moon Illumination: 52.5%

Best Times for Fishing or Hunting

Major Periods

4:45 AM - 7:15 AM
12:40 AM - 3:10 PM

Minor Periods

9:49 AM - 11:19 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, February 9, 2026

Weather Forecast

Overcast
58.6°F
49.3°F
54.7°F
76%
0 in
0%
0%
9.2 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 10.82 μg/m3
PM10: 13.92 μg/m3
Carbon Monoxide: 179.41 μg/m3
Nitrogen Dioxide: 16.94 μg/m3
Sulphur Dioxide: 3.76 μg/m3
Ozone: 59.28 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 12:23 AM
Sunset: 5:42 PM
Daylight: 10 hrs 36 mins
Moonrise: 1:07 AM
Moon Transit: 6:01 AM
Moonset: 10:50 AM
Moon Phase: Last Quarter
Moon Illumination: 41.2%

Best Times for Fishing or Hunting

Major Periods

5:31 AM - 8:01 AM
1:26 PM - 3:56 PM

Minor Periods

10:20 AM - 11:50 AM
12:37 AM - 2:07 AM

Action Rating: 2 out of 5

Tuesday, February 10, 2026

Weather Forecast

Moderate rain
55.2°F
52.3°F
54.3°F
80%
0.65 in
73%
0%
24.2 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 12.56 μg/m3
PM10: 15.89 μg/m3
Carbon Monoxide: 180.53 μg/m3
Nitrogen Dioxide: 18.4 μg/m3
Sulphur Dioxide: 3.68 μg/m3
Ozone: 63.16 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 12:23 AM
Sunset: 5:43 PM
Daylight: 10 hrs 39 mins
Moonrise: 2:08 AM
Moon Transit: 6:49 AM
Moonset: 11:26 AM
Moon Phase: Last Quarter
Moon Illumination: 30.3%

Best Times for Fishing or Hunting

Major Periods

6:19 AM - 8:49 AM
2:15 PM - 4:45 PM

Minor Periods

10:56 AM - 12:26 AM
1:38 AM - 3:08 AM

Action Rating: 2 out of 5

Wednesday, February 11, 2026

Weather Forecast

Heavy rain
53.1°F
51.4°F
52.6°F
91%
1.98 in
89%
0%
19.5 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 11.71 μg/m3
PM10: 16.07 μg/m3
Carbon Monoxide: 186.43 μg/m3
Nitrogen Dioxide: 13.67 μg/m3
Sulphur Dioxide: 3.96 μg/m3
Ozone: 62.64 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 12:23 AM
Sunset: 5:44 PM
Daylight: 10 hrs 41 mins
Moonrise: 3:07 AM
Moon Transit: 7:39 AM
Moonset: 12:10 AM
Moon Phase: Last Quarter
Moon Illumination: 20.5%

Best Times for Fishing or Hunting

Major Periods

7:09 AM - 9:39 AM
3:06 PM - 5:36 PM

Minor Periods

11:40 AM - 1:10 PM
2:37 AM - 4:07 AM

Action Rating: 4 out of 5

Thursday, February 12, 2026

Weather Forecast

Patchy rain nearby
57.3°F
52.4°F
54°F
80%
0.19 in
89%
0%
11.6 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 11.69 μg/m3
PM10: 13.99 μg/m3
Carbon Monoxide: 234.1 μg/m3
Nitrogen Dioxide: 21.44 μg/m3
Sulphur Dioxide: 4.14 μg/m3
Ozone: 52.38 μg/m3

Astronomical

Sunrise: 7:03 AM
Sun Transit: 12:23 AM
Sunset: 5:46 PM
Daylight: 10 hrs 43 mins
Moonrise: 4:02 AM
Moon Transit: 8:31 AM
Moonset: 1:01 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.2%

Best Times for Fishing or Hunting

Major Periods

8:01 AM - 10:31 AM
3:58 PM - 6:28 PM

Minor Periods

12:31 AM - 2:01 PM
3:32 AM - 5:02 AM

Action Rating: 2 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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