Water Temperature of San Francisco Bay in San Francisco, CA

Current Water Temperature

56.3°F

Measurement Time: Sunday, May 24, 2026, 1:00 PM PDT

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
Overcast
Overcast
55°F
55.8°F
77%
WSW 8.9 mph
13.2 mph
53.5°F
53.2°F
0 in
25%
9 mi
1016 mbar
0

Five Day Weather Forecast

Partly Cloudy
Sun
H: 65°F
L: 52°F
Cloudy
Mon
H: 59°F
L: 52°F
Patchy rain nearby
Tue
H: 59°F
L: 53°F
Patchy rain nearby
Wed
H: 61°F
L: 51°F
Patchy rain nearby
Thu
H: 62°F
L: 53°F

Air Quality

AQI: 1 - Good
PM2.5: 15.65 μg/m3
PM10: 23.35 μg/m3
Carbon Monoxide: 115.85 μg/m3
Nitrogen Dioxide: 4.05 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 71 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 1:06 PM
Sunset: 8:21 PM
Daylight: 14 hrs 28 mins
Moonrise: 2:18 PM
Moon Transit: 8:34 PM
Moonset: 2:19 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

3:16 AM - 5:46 AM
8:04 PM - 10:34 PM

Minor Periods

1:48 PM - 3:18 PM
1:49 AM - 3:19 AM

Action Rating: 4 out of 5

Sunday, May 24, 2026

Weather Forecast

Partly Cloudy
64.6°F
52.2°F
57.1°F
85%
0 in
0%
0%
13.9 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 7.52 μg/m3
PM10: 12 μg/m3
Carbon Monoxide: 112.33 μg/m3
Nitrogen Dioxide: 4.28 μg/m3
Sulphur Dioxide: 1.69 μg/m3
Ozone: 67.36 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 1:06 PM
Sunset: 8:21 PM
Daylight: 14 hrs 28 mins
Moonrise: 2:18 PM
Moon Transit: 8:34 PM
Moonset: 2:19 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

3:16 AM - 5:46 AM
8:04 PM - 10:34 PM

Minor Periods

1:48 PM - 3:18 PM
1:49 AM - 3:19 AM

Action Rating: 4 out of 5

Monday, May 25, 2026

Weather Forecast

Cloudy
58.9°F
52.3°F
55.5°F
82%
0 in
0%
0%
15.4 mph
7.8


Air Quality

AQI: 1 - Good
PM2.5: 12.95 μg/m3
PM10: 19.97 μg/m3
Carbon Monoxide: 118.49 μg/m3
Nitrogen Dioxide: 4.54 μg/m3
Sulphur Dioxide: 1.83 μg/m3
Ozone: 74.96 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:06 PM
Sunset: 8:22 PM
Daylight: 14 hrs 29 mins
Moonrise: 3:19 PM
Moon Transit: 9:16 PM
Moonset: 2:42 AM
Moon Phase: First Quarter
Moon Illumination: 66.7%

Best Times for Fishing or Hunting

Major Periods

3:58 AM - 6:28 AM
8:46 PM - 11:16 PM

Minor Periods

2:49 PM - 4:19 PM
2:12 AM - 3:42 AM

Action Rating: 3 out of 5

Tuesday, May 26, 2026

Weather Forecast

Patchy rain nearby
58.6°F
52.6°F
55.3°F
74%
0 in
89%
0%
21.3 mph
7.6


Air Quality

AQI: 1 - Good
PM2.5: 12.09 μg/m3
PM10: 19.8 μg/m3
Carbon Monoxide: 118.01 μg/m3
Nitrogen Dioxide: 4.08 μg/m3
Sulphur Dioxide: 1.48 μg/m3
Ozone: 76.92 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:06 PM
Sunset: 8:22 PM
Daylight: 14 hrs 30 mins
Moonrise: 4:21 PM
Moon Transit: 9:58 PM
Moonset: 3:05 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.9%

Best Times for Fishing or Hunting

Major Periods

4:40 AM - 7:10 AM
9:28 PM - 11:58 PM

Minor Periods

3:51 PM - 5:21 PM
2:35 AM - 4:05 AM

Action Rating: 2 out of 5

Wednesday, May 27, 2026

Weather Forecast

Patchy rain nearby
60.5°F
51.1°F
55.3°F
77%
0 in
88%
0%
15.2 mph
6.8


Air Quality

AQI: 1 - Good
PM2.5: 7.01 μg/m3
PM10: 10.09 μg/m3
Carbon Monoxide: 137.64 μg/m3
Nitrogen Dioxide: 6.84 μg/m3
Sulphur Dioxide: 1.4 μg/m3
Ozone: 55.04 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:06 PM
Sunset: 8:23 PM
Daylight: 14 hrs 32 mins
Moonrise: 5:21 PM
Moon Transit: 10:41 PM
Moonset: 3:28 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.7%

Best Times for Fishing or Hunting

Major Periods

5:22 AM - 7:52 AM
12:00 AM - 12:00 AM

Minor Periods

4:51 PM - 6:21 PM
2:58 AM - 4:28 AM

Action Rating: 3 out of 5

Thursday, May 28, 2026

Weather Forecast

Patchy rain nearby
61.5°F
53.2°F
56.5°F
77%
0.01 in
83%
0%
13.4 mph
7.2


Air Quality

AQI: 1 - Good
PM2.5: 10.87 μg/m3
PM10: 15.25 μg/m3
Carbon Monoxide: 141.1 μg/m3
Nitrogen Dioxide: 9.56 μg/m3
Sulphur Dioxide: 1.53 μg/m3
Ozone: 61.69 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:07 PM
Sunset: 8:24 PM
Daylight: 14 hrs 33 mins
Moonrise: 6:23 PM
Moon Transit: 11:26 PM
Moonset: 3:54 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.7%

Best Times for Fishing or Hunting

Major Periods

6:06 AM - 8:36 AM
12:00 AM - 12:00 AM

Minor Periods

5:53 PM - 7:23 PM
3:24 AM - 4:54 AM

Action Rating: 3 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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