Water Temperature of San Francisco Bay in San Francisco, CA

Current Water Temperature

63.9°F

Measurement Time: Thursday, September 24, 2026, 7:00 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

63°F
Mostly Sunny
Mostly Sunny
88%
WSW 15 mph
59°F

Weather Forecast

Mostly Sunny
This Afternoon
65°F - Mostly Sunny
Mostly Cloudy
Tonight
61°F - Mostly Cloudy
Mostly Sunny
Friday
64°F - Mostly Sunny
Partly Cloudy
Friday Night
56°F - Partly Cloudy
Mostly Sunny
Saturday
62°F - Mostly Sunny
Mostly Cloudy
Saturday Night
57°F - Mostly Cloudy
Mostly Sunny
Sunday
59°F - Mostly Sunny
Mostly Clear
Sunday Night
55°F - Mostly Clear
Sunny
Monday
63°F - Sunny
Mostly Clear
Monday Night
56°F - Mostly Clear
Sunny
Tuesday
67°F - Sunny
Mostly Clear
Tuesday Night
58°F - Mostly Clear
Sunny
Wednesday
68°F - Sunny
Partly Cloudy
Wednesday Night
58°F - Partly Cloudy

Astronomical

Sunrise: 6:59 AM
Sun Transit: 1:01 PM
Sunset: 7:03 PM
Daylight: 12 hrs 4 mins
Moonrise: 6:05 PM
Moon Transit: 11:54 PM
Moonset: 4:51 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.0%

Best Times for Fishing or Hunting

Major Periods

6:35 AM - 9:05 AM
12:00 AM - 12:00 AM

Minor Periods

5:35 PM - 7:05 PM
4:21 AM - 5:51 AM

Action Rating: 4 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: 6:59 AM
Sun Transit: 1:01 PM
Sunset: 7:03 PM
Daylight: 12 hrs 4 mins
Moonrise: 6:05 PM
Moon Transit: 11:54 PM
Moonset: 4:51 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.0%

Best Times for Fishing or Hunting

Major Periods

6:35 AM - 9:05 AM
12:00 AM - 12:00 AM

Minor Periods

5:35 PM - 7:05 PM
4:21 AM - 5:51 AM

Action Rating: 4 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: 6:59 AM
Sun Transit: 1:01 PM
Sunset: 7:03 PM
Daylight: 12 hrs 4 mins
Moonrise: 6:05 PM
Moon Transit: 11:54 PM
Moonset: 4:51 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.0%

Best Times for Fishing or Hunting

Major Periods

6:35 AM - 9:05 AM
12:00 AM - 12:00 AM

Minor Periods

5:35 PM - 7:05 PM
4:21 AM - 5:51 AM

Action Rating: 4 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: 7:00 AM
Sun Transit: 1:01 PM
Sunset: 7:02 PM
Daylight: 12 hrs 1 mins
Moonrise: 6:29 PM
Moon Transit: 12:00 AM
Moonset: 5:55 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:19 AM - 9:49 AM

Minor Periods

5:59 PM - 7:29 PM
5:25 AM - 6:55 AM

Action Rating: 6 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: 7:00 AM
Sun Transit: 1:01 PM
Sunset: 7:02 PM
Daylight: 12 hrs 1 mins
Moonrise: 6:29 PM
Moon Transit: 12:00 AM
Moonset: 5:55 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:19 AM - 9:49 AM

Minor Periods

5:59 PM - 7:29 PM
5:25 AM - 6:55 AM

Action Rating: 6 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: 7:01 AM
Sun Transit: 1:00 PM
Sunset: 7:00 PM
Daylight: 11 hrs 59 mins
Moonrise: 6:54 PM
Moon Transit: 5:33 AM
Moonset: 7:01 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

5:03 AM - 7:33 AM
5:03 AM - 7:33 AM

Minor Periods

6:24 PM - 7:54 PM
6:31 AM - 8:01 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: 7:01 AM
Sun Transit: 1:00 PM
Sunset: 7:00 PM
Daylight: 11 hrs 59 mins
Moonrise: 6:54 PM
Moon Transit: 5:33 AM
Moonset: 7:01 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

5:03 AM - 7:33 AM
5:03 AM - 7:33 AM

Minor Periods

6:24 PM - 7:54 PM
6:31 AM - 8:01 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: 7:02 AM
Sun Transit: 1:00 PM
Sunset: 6:59 PM
Daylight: 11 hrs 57 mins
Moonrise: 7:20 PM
Moon Transit: 1:25 AM
Moonset: 8:09 AM
Moon Phase: Full
Moon Illumination: 97.3%

Best Times for Fishing or Hunting

Major Periods

12:55 AM - 3:25 AM
8:51 AM - 11:21 AM

Minor Periods

6:50 PM - 8:20 PM
7:39 AM - 9:09 AM

Action Rating: 4 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: 7:02 AM
Sun Transit: 1:00 PM
Sunset: 6:59 PM
Daylight: 11 hrs 57 mins
Moonrise: 7:20 PM
Moon Transit: 1:25 AM
Moonset: 8:09 AM
Moon Phase: Full
Moon Illumination: 97.3%

Best Times for Fishing or Hunting

Major Periods

12:55 AM - 3:25 AM
8:51 AM - 11:21 AM

Minor Periods

6:50 PM - 8:20 PM
7:39 AM - 9:09 AM

Action Rating: 4 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: 7:03 AM
Sun Transit: 1:00 PM
Sunset: 6:57 PM
Daylight: 11 hrs 54 mins
Moonrise: 7:51 PM
Moon Transit: 2:14 AM
Moonset: 9:19 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

1:44 AM - 4:14 AM
9:40 AM - 12:10 AM

Minor Periods

7:21 PM - 8:51 PM
8:49 AM - 10:19 AM

Action Rating: 4 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: 7:03 AM
Sun Transit: 1:00 PM
Sunset: 6:57 PM
Daylight: 11 hrs 54 mins
Moonrise: 7:51 PM
Moon Transit: 2:14 AM
Moonset: 9:19 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

1:44 AM - 4:14 AM
9:40 AM - 12:10 AM

Minor Periods

7:21 PM - 8:51 PM
8:49 AM - 10:19 AM

Action Rating: 4 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: 7:04 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

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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