Water Temperature of San Francisco Bay in San Francisco, CA

Current Water Temperature

58.3°F

Measurement Time: Wednesday, June 17, 2026, 8:00 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

59.5°F
Partly cloudy
Partly cloudy
59.5°F
55.4°F
87%
SW 7.6 mph
11.7 mph
52.8°F
54.3°F
0 in
75%
9 mi
1012 mbar
0

Five Day Weather Forecast

Overcast
Thu
H: 67°F
L: 55°F
Patchy rain nearby
Fri
H: 64°F
L: 57°F
Sunny
Sat
H: 63°F
L: 55°F
Sunny
Sun
H: 64°F
L: 54°F
Partly Cloudy
Mon
H: 64°F
L: 54°F

Air Quality

AQI: 1 - Good
PM2.5: 9.2 μg/m3
PM10: 14.6 μg/m3
Carbon Monoxide: 95 μg/m3
Nitrogen Dioxide: 4.5 μg/m3
Sulphur Dioxide: 0.9 μg/m3
Ozone: 52 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:10 PM
Sunset: 8:35 PM
Daylight: 14 hrs 48 mins
Moonrise: 9:48 AM
Moon Transit: 4:57 PM
Moonset: 12:21 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:27 PM - 6:57 PM

Minor Periods

9:18 AM - 10:48 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Small Craft Advisory issued June 17 at 1:43PM PDT until June 18 at 9:00PM PDT by NWS San Francisco CA

Effective: Wed June 17, 2026, 1:43 PM
Expires: Wed June 17, 2026, 9:45 PM

* WHAT...Southwest winds 15 to 20 kt with frequent gusts to 25 kt and choppy waters expected. * WHERE...San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge. * WHEN...From 3 PM to 9 PM PDT Thursday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.


Small Craft Advisory issued June 17 at 8:28PM PDT until June 18 at 9:00PM PDT by NWS San Francisco CA

Effective: Wed June 17, 2026, 8:28 PM
Expires: Thu June 18, 2026, 4:30 AM

* WHAT...Southwest winds 15 to 20 kt and choppy waters expected. * WHERE...San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge. * WHEN...From 3 PM to 9 PM PDT Thursday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Thursday, June 18, 2026

Weather Forecast

Overcast
66.7°F
55°F
59.5°F
84%
0 in
21%
0%
16.1 mph
10.2


Air Quality

AQI: 1 - Good
PM2.5: 9.89 μg/m3
PM10: 15.54 μg/m3
Carbon Monoxide: 99.08 μg/m3
Nitrogen Dioxide: 4.96 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 61.63 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:10 PM
Sunset: 8:35 PM
Daylight: 14 hrs 48 mins
Moonrise: 9:48 AM
Moon Transit: 4:57 PM
Moonset: 12:21 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:27 PM - 6:57 PM

Minor Periods

9:18 AM - 10:48 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Friday, June 19, 2026

Weather Forecast

Patchy rain nearby
64.1°F
57.2°F
60.3°F
74%
0 in
18%
0%
17.2 mph
9.5


Air Quality

AQI: 1 - Good
PM2.5: 9.91 μg/m3
PM10: 15.6 μg/m3
Carbon Monoxide: 98.63 μg/m3
Nitrogen Dioxide: 5 μg/m3
Sulphur Dioxide: 0.84 μg/m3
Ozone: 68.83 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:11 PM
Sunset: 8:35 PM
Daylight: 14 hrs 48 mins
Moonrise: 11:00 AM
Moon Transit: 5:46 PM
Moonset: 12:54 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.3%

Best Times for Fishing or Hunting

Major Periods

12:24 AM - 2:54 AM
5:16 PM - 7:46 PM

Minor Periods

10:30 AM - 12:00 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, June 20, 2026

Weather Forecast

Sunny
63.3°F
55°F
59°F
75%
0 in
10%
0%
13.9 mph
9.8


Air Quality

AQI: 1 - Good
PM2.5: 9.14 μg/m3
PM10: 13.59 μg/m3
Carbon Monoxide: 100.33 μg/m3
Nitrogen Dioxide: 7.88 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 57.58 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:11 PM
Sunset: 8:35 PM
Daylight: 14 hrs 48 mins
Moonrise: 12:07 AM
Moon Transit: 6:31 PM
Moonset: 12:21 AM
Moon Phase: Waxing Crescent
Moon Illumination: 27.8%

Best Times for Fishing or Hunting

Major Periods

1:11 AM - 3:41 AM
6:01 PM - 8:31 PM

Minor Periods

11:37 AM - 1:07 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Sunday, June 21, 2026

Weather Forecast

Sunny
64.1°F
54.4°F
58.3°F
79%
0 in
17%
0%
13.9 mph
9.5


Air Quality

AQI: 1 - Good
PM2.5: 12.22 μg/m3
PM10: 19.35 μg/m3
Carbon Monoxide: 95.74 μg/m3
Nitrogen Dioxide: 3.47 μg/m3
Sulphur Dioxide: 0.97 μg/m3
Ozone: 62.67 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:11 PM
Sunset: 8:36 PM
Daylight: 14 hrs 48 mins
Moonrise: 1:11 PM
Moon Transit: 7:14 PM
Moonset: 12:46 AM
Moon Phase: First Quarter
Moon Illumination: 38.5%

Best Times for Fishing or Hunting

Major Periods

1:56 AM - 4:26 AM
6:44 PM - 9:14 PM

Minor Periods

12:41 AM - 2:11 PM
12:16 AM - 1:46 AM

Action Rating: 2 out of 5

Monday, June 22, 2026

Weather Forecast

Partly Cloudy
63.9°F
54.4°F
58.2°F
80%
0 in
17%
0%
13.2 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 12.18 μg/m3
PM10: 19.33 μg/m3
Carbon Monoxide: 108.67 μg/m3
Nitrogen Dioxide: 4.62 μg/m3
Sulphur Dioxide: 0.97 μg/m3
Ozone: 63 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:11 PM
Sunset: 8:36 PM
Daylight: 14 hrs 48 mins
Moonrise: 2:14 PM
Moon Transit: 7:57 PM
Moonset: 1:09 AM
Moon Phase: First Quarter
Moon Illumination: 49.7%

Best Times for Fishing or Hunting

Major Periods

2:38 AM - 5:08 AM
7:27 PM - 9:57 PM

Minor Periods

1:44 PM - 3:14 PM
12:39 AM - 2:09 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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