Water Temperature of San Francisco Bay in San Francisco, CA

Current Water Temperature

63.1°F

Measurement Time: Tuesday, September 29, 2026, 11:00 AM 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

64°F
Clear
Clear
78%
WSW 10 mph
57°F

Weather Forecast

Mostly Clear
Tonight
58°F - Mostly Clear
Sunny
Wednesday
66°F - Sunny
Partly Cloudy
Wednesday Night
58°F - Partly Cloudy
Mostly Sunny
Thursday
66°F - Mostly Sunny
Partly Cloudy
Thursday Night
58°F - Partly Cloudy
Patchy Fog then Partly Sunny
Friday
67°F - Patchy Fog then Partly Sunny
Mostly Cloudy
Friday Night
59°F - Mostly Cloudy
Mostly Sunny
Saturday
70°F - Mostly Sunny
Partly Cloudy
Saturday Night
59°F - Partly Cloudy
Mostly Sunny
Sunday
68°F - Mostly Sunny
Partly Cloudy
Sunday Night
60°F - Partly Cloudy
Mostly Sunny
Monday
68°F - Mostly Sunny
Partly Cloudy
Monday Night
60°F - Partly Cloudy
Sunny
Tuesday
70°F - Sunny

Astronomical

Sunrise: 7:04 AM
Sun Transit: 1:00 PM
Sunset: 6:56 PM
Daylight: 11 hrs 52 mins
Moonrise: 8:29 PM
Moon Transit: 3:06 AM
Moonset: 10:33 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.4%

Best Times for Fishing or Hunting

Major Periods

2:36 AM - 5:06 AM
10:34 AM - 1:04 PM

Minor Periods

7:59 PM - 9:29 PM
10:03 AM - 11:33 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 1:00 PM
Sunset: 6:56 PM
Daylight: 11 hrs 52 mins
Moonrise: 8:29 PM
Moon Transit: 3:06 AM
Moonset: 10:33 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.4%

Best Times for Fishing or Hunting

Major Periods

2:36 AM - 5:06 AM
10:34 AM - 1:04 PM

Minor Periods

7:59 PM - 9:29 PM
10:03 AM - 11:33 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 1:00 PM
Sunset: 6:54 PM
Daylight: 11 hrs 50 mins
Moonrise: 9:14 PM
Moon Transit: 4:03 AM
Moonset: 11:47 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

3:33 AM - 6:03 AM
11:32 AM - 2:02 PM

Minor Periods

8:44 PM - 10:14 PM
11:17 AM - 12:47 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 1:00 PM
Sunset: 6:54 PM
Daylight: 11 hrs 50 mins
Moonrise: 9:14 PM
Moon Transit: 4:03 AM
Moonset: 11:47 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

3:33 AM - 6:03 AM
11:32 AM - 2:02 PM

Minor Periods

8:44 PM - 10:14 PM
11:17 AM - 12:47 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 1:00 PM
Sunset: 6:53 PM
Daylight: 11 hrs 47 mins
Moonrise: 10:10 PM
Moon Transit: 5:03 AM
Moonset: 12:58 AM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

4:33 AM - 7:03 AM
12:34 AM - 3:04 PM

Minor Periods

9:40 PM - 11:10 PM
12:28 AM - 1:58 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 1:00 PM
Sunset: 6:53 PM
Daylight: 11 hrs 47 mins
Moonrise: 10:10 PM
Moon Transit: 5:03 AM
Moonset: 12:58 AM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

4:33 AM - 7:03 AM
12:34 AM - 3:04 PM

Minor Periods

9:40 PM - 11:10 PM
12:28 AM - 1:58 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 12:58 AM
Sunset: 6:51 PM
Daylight: 11 hrs 45 mins
Moonrise: 11:15 PM
Moon Transit: 6:06 AM
Moonset: 2:02 PM
Moon Phase: Last Quarter
Moon Illumination: 55.3%

Best Times for Fishing or Hunting

Major Periods

5:36 AM - 8:06 AM
1:37 PM - 4:07 PM

Minor Periods

12:00 AM - 12:00 AM
1:32 PM - 3:02 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 12:58 AM
Sunset: 6:51 PM
Daylight: 11 hrs 45 mins
Moonrise: 11:15 PM
Moon Transit: 6:06 AM
Moonset: 2:02 PM
Moon Phase: Last Quarter
Moon Illumination: 55.3%

Best Times for Fishing or Hunting

Major Periods

5:36 AM - 8:06 AM
1:37 PM - 4:07 PM

Minor Periods

12:00 AM - 12:00 AM
1:32 PM - 3:02 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 12:58 AM
Sunset: 6:50 PM
Daylight: 11 hrs 42 mins
Moonrise: 12:15 AM
Moon Transit: 7:08 AM
Moonset: 2:56 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:38 AM - 9:08 AM
2:38 PM - 5:08 PM

Minor Periods

2:26 PM - 3:56 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 12:58 AM
Sunset: 6:50 PM
Daylight: 11 hrs 42 mins
Moonrise: 12:15 AM
Moon Transit: 7:08 AM
Moonset: 2:56 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:38 AM - 9:08 AM
2:38 PM - 5:08 PM

Minor Periods

2:26 PM - 3:56 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:08 AM
Sun Transit: 12:58 AM
Sunset: 6:48 PM
Daylight: 11 hrs 40 mins
Moonrise: 12:26 AM
Moon Transit: 8:08 AM
Moonset: 3:40 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

7:38 AM - 10:08 AM
3:37 PM - 6:07 PM

Minor Periods

3:10 PM - 4:40 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:08 AM
Sun Transit: 12:58 AM
Sunset: 6:48 PM
Daylight: 11 hrs 40 mins
Moonrise: 12:26 AM
Moon Transit: 8:08 AM
Moonset: 3:40 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

7:38 AM - 10:08 AM
3:37 PM - 6:07 PM

Minor Periods

3:10 PM - 4:40 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:09 AM
Sun Transit: 12:58 AM
Sunset: 6:47 PM
Daylight: 11 hrs 38 mins
Moonrise: 1:39 AM
Moon Transit: 9:03 AM
Moonset: 4:17 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:33 AM - 11:03 AM
4:31 PM - 7:01 PM

Minor Periods

3:47 PM - 5:17 PM
1:09 AM - 2:39 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:09 AM
Sun Transit: 12:58 AM
Sunset: 6:47 PM
Daylight: 11 hrs 38 mins
Moonrise: 1:39 AM
Moon Transit: 9:03 AM
Moonset: 4:17 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:33 AM - 11:03 AM
4:31 PM - 7:01 PM

Minor Periods

3:47 PM - 5:17 PM
1:09 AM - 2:39 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:10 AM
Sun Transit: 12:57 AM
Sunset: 6:45 PM
Daylight: 11 hrs 35 mins
Moonrise: 2:52 AM
Moon Transit: 9:55 AM
Moonset: 4:47 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.1%

Best Times for Fishing or Hunting

Major Periods

5:21 PM - 7:51 PM
9:25 AM - 11:55 AM

Minor Periods

4:17 PM - 5:47 PM
2:22 AM - 3:52 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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