Water Temperature of San Francisco Bay in San Francisco, CA

Current Water Temperature

63.3°F

Measurement Time: Saturday, September 5, 2026, 2:00 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

59°F
Mostly Clear
Mostly Clear
87%
WSW 9 mph
55°F

Weather Forecast

Partly Cloudy
Tonight
57°F - Partly Cloudy
Mostly Sunny
Sunday
62°F - Mostly Sunny
Partly Cloudy
Sunday Night
56°F - Partly Cloudy
Sunny
Labor Day
68°F - Sunny
Mostly Clear
Monday Night
60°F - Mostly Clear
Slight Chance Light Rain
Tuesday
69°F - Slight Chance Light Rain
Slight Chance Light Rain then Mostly Cloudy
Tuesday Night
61°F - Slight Chance Light Rain then Mostly Cloudy
Partly Sunny
Wednesday
73°F - Partly Sunny
Partly Cloudy
Wednesday Night
65°F - Partly Cloudy
Mostly Sunny then Slight Chance Light Rain
Thursday
69°F - Mostly Sunny then Slight Chance Light Rain
Slight Chance Light Rain then Partly Cloudy
Thursday Night
62°F - Slight Chance Light Rain then Partly Cloudy
Mostly Sunny
Friday
64°F - Mostly Sunny
Partly Cloudy
Friday Night
60°F - Partly Cloudy
Mostly Sunny
Saturday
63°F - Mostly Sunny

Astronomical

Sunrise: 6:44 AM
Sun Transit: 1:08 PM
Sunset: 7:32 PM
Daylight: 12 hrs 49 mins
Moonrise: 12:15 AM
Moon Transit: 8:12 AM
Moonset: 4:08 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

7:42 AM - 10:12 AM
3:43 PM - 6:13 PM

Minor Periods

3:38 PM - 5:08 PM
12:00 AM - 12:00 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: 6:44 AM
Sun Transit: 1:08 PM
Sunset: 7:32 PM
Daylight: 12 hrs 49 mins
Moonrise: 12:15 AM
Moon Transit: 8:12 AM
Moonset: 4:08 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

7:42 AM - 10:12 AM
3:43 PM - 6:13 PM

Minor Periods

3:38 PM - 5:08 PM
12:00 AM - 12:00 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: 6:44 AM
Sun Transit: 1:07 PM
Sunset: 7:31 PM
Daylight: 12 hrs 47 mins
Moonrise: 1:23 AM
Moon Transit: 9:14 AM
Moonset: 4:59 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

8:44 AM - 11:14 AM
4:44 PM - 7:14 PM

Minor Periods

4:29 PM - 5:59 PM
12:53 AM - 2:23 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: 6:44 AM
Sun Transit: 1:07 PM
Sunset: 7:31 PM
Daylight: 12 hrs 47 mins
Moonrise: 1:23 AM
Moon Transit: 9:14 AM
Moonset: 4:59 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

8:44 AM - 11:14 AM
4:44 PM - 7:14 PM

Minor Periods

4:29 PM - 5:59 PM
12:53 AM - 2:23 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: 6:45 AM
Sun Transit: 1:07 PM
Sunset: 7:29 PM
Daylight: 12 hrs 44 mins
Moonrise: 2:37 AM
Moon Transit: 10:14 AM
Moonset: 5:41 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

5:43 PM - 8:13 PM
9:44 AM - 12:14 AM

Minor Periods

5:11 PM - 6:41 PM
2:07 AM - 3:37 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: 6:45 AM
Sun Transit: 1:07 PM
Sunset: 7:29 PM
Daylight: 12 hrs 44 mins
Moonrise: 2:37 AM
Moon Transit: 10:14 AM
Moonset: 5:41 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

5:43 PM - 8:13 PM
9:44 AM - 12:14 AM

Minor Periods

5:11 PM - 6:41 PM
2:07 AM - 3:37 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: 6:46 AM
Sun Transit: 1:07 PM
Sunset: 7:28 PM
Daylight: 12 hrs 42 mins
Moonrise: 3:52 AM
Moon Transit: 11:09 AM
Moonset: 6:16 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

6:37 PM - 9:07 PM
10:39 AM - 1:09 PM

Minor Periods

5:46 PM - 7:16 PM
3:22 AM - 4:52 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: 6:46 AM
Sun Transit: 1:07 PM
Sunset: 7:28 PM
Daylight: 12 hrs 42 mins
Moonrise: 3:52 AM
Moon Transit: 11:09 AM
Moonset: 6:16 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

6:37 PM - 9:07 PM
10:39 AM - 1:09 PM

Minor Periods

5:46 PM - 7:16 PM
3:22 AM - 4:52 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: 6:47 AM
Sun Transit: 1:06 PM
Sunset: 7:26 PM
Daylight: 12 hrs 39 mins
Moonrise: 5:06 AM
Moon Transit: 12:01 AM
Moonset: 6:45 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

7:27 PM - 9:57 PM
11:31 AM - 2:01 PM

Minor Periods

6:15 PM - 7:45 PM
4:36 AM - 6:06 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: 6:47 AM
Sun Transit: 1:06 PM
Sunset: 7:26 PM
Daylight: 12 hrs 39 mins
Moonrise: 5:06 AM
Moon Transit: 12:01 AM
Moonset: 6:45 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

7:27 PM - 9:57 PM
11:31 AM - 2:01 PM

Minor Periods

6:15 PM - 7:45 PM
4:36 AM - 6:06 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: 6:48 AM
Sun Transit: 1:06 PM
Sunset: 7:25 PM
Daylight: 12 hrs 37 mins
Moonrise: 6:17 AM
Moon Transit: 12:49 AM
Moonset: 7:11 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

8:15 PM - 10:45 PM
12:19 AM - 2:49 PM

Minor Periods

6:41 PM - 8:11 PM
5:47 AM - 7:17 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: 6:48 AM
Sun Transit: 1:06 PM
Sunset: 7:25 PM
Daylight: 12 hrs 37 mins
Moonrise: 6:17 AM
Moon Transit: 12:49 AM
Moonset: 7:11 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

8:15 PM - 10:45 PM
12:19 AM - 2:49 PM

Minor Periods

6:41 PM - 8:11 PM
5:47 AM - 7:17 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: 6:49 AM
Sun Transit: 1:06 PM
Sunset: 7:23 PM
Daylight: 12 hrs 35 mins
Moonrise: 7:24 AM
Moon Transit: 1:35 PM
Moonset: 7:36 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

9:00 PM - 11:30 PM
1:05 PM - 3:35 PM

Minor Periods

7:06 PM - 8:36 PM
6:54 AM - 8:24 AM

Action Rating: 5 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: 6:49 AM
Sun Transit: 1:06 PM
Sunset: 7:23 PM
Daylight: 12 hrs 35 mins
Moonrise: 7:24 AM
Moon Transit: 1:35 PM
Moonset: 7:36 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

9:00 PM - 11:30 PM
1:05 PM - 3:35 PM

Minor Periods

7:06 PM - 8:36 PM
6:54 AM - 8:24 AM

Action Rating: 5 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: 6:49 AM
Sun Transit: 1:05 PM
Sunset: 7:22 PM
Daylight: 12 hrs 32 mins
Moonrise: 8:31 AM
Moon Transit: 2:20 PM
Moonset: 8:01 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:50 PM - 4:20 PM

Minor Periods

7:31 PM - 9:01 PM
8:01 AM - 9:31 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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