Water Temperature of San Francisco Bay in San Francisco, CA

Current Water Temperature

55.8°F

Measurement Time: Thursday, January 22, 2026, 8:00 AM PST

Temperature Locations

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Local Points of Interest

The Embarcadero; Telegraph Hill

San Francisco Bay

Station Name: SAN FRANCISCO BAY A PIER 17 A SAN FRANCISCO CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 23 feet

Nearest Address:
Pier 17
San Francisco, CA 94111
San Francisco County

GPS Coordinates: 37.80305, -122.3973083

Nearby Water Temperatures

San Francisco Bay, San Francisco, CA (2.1 mi)
San Francisco Bay, San Francisco, CA (3.8 mi)
San Francisco Bay, Alameda, CA (5.7 mi)
Rodeo Pond, Sausalito, CA (7.2 mi)
Rodeo Lagoon, Sausalito, CA (7.4 mi)
Rodeo Lagoon, Sausalito, CA (7.7 mi)
San Francisco Bay, Richmond, CA (8.7 mi)
San Francisco Bay, San Rafael, CA (9.5 mi)
San Francisco Bay, San Mateo, CA (14.6 mi)
Carquinez Strait, Martinez, CA (21.8 mi)
Redwood Creek, Redwood City, CA (22.9 mi)
Pacific Ocean, San Francisco, CA (24.4 mi)
San Francisco Bay, Menlo Park, CA (25.6 mi)
Suisun Bay, Concord, CA (26.2 mi)
Coyote Creek, Alviso, CA (31.1 mi)

Weather for San Francisco, California

Current Weather

61°F
Partly cloudy
Partly cloudy
61°F
59.4°F
62%
W 5.6 mph
8.1 mph
58.9°F
53°F
0 in
50%
9 mi
1015 mbar
0.4

Five Day Weather Forecast

Sunny
Thu
H: 63°F
L: 46°F
Fog
Fri
H: 49°F
L: 47°F
Partly Cloudy
Sat
H: 60°F
L: 44°F
Cloudy
Sun
H: 55°F
L: 44°F
Sunny
Mon
H: 58°F
L: 49°F

Air Quality

AQI: 2 - Moderate
PM2.5: 20.55 μg/m3
PM10: 26.05 μg/m3
Carbon Monoxide: 237.85 μg/m3
Nitrogen Dioxide: 17.55 μg/m3
Sulphur Dioxide: 3.35 μg/m3
Ozone: 52 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 12:21 AM
Sunset: 5:22 PM
Daylight: 10 hrs 2 mins
Moonrise: 9:31 AM
Moon Transit: 3:29 PM
Moonset: 9:39 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:59 PM - 5:29 PM

Minor Periods

9:09 PM - 10:39 PM
9:01 AM - 10:31 AM

Action Rating: 3 out of 5

Dense Fog Advisory issued January 22 at 7:16AM PST until January 22 at 12:00PM PST by NWS Sacramento CA

Effective: Thu January 22, 2026, 7:16 AM
Expires: Thu January 22, 2026, 12:00 PM

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Central Sacramento Valley, Northern San Joaquin Valley, and Southern Sacramento Valley. * WHEN...Until noon PST today. * IMPACTS...Low visibility could make driving conditions hazardous.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.


Dense Fog Advisory issued January 22 at 4:25PM PST until January 23 at 11:00AM PST by NWS Sacramento CA

Effective: Thu January 22, 2026, 4:25 PM
Expires: Fri January 23, 2026, 11:00 AM

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Carquinez Strait and Delta, Central Sacramento Valley, Northern San Joaquin Valley, and Southern Sacramento Valley. * WHEN...From 10 PM this evening to 11 AM PST Friday. * IMPACTS...Low visibility could make driving conditions hazardous.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Thursday, January 22, 2026

Weather Forecast

Sunny
62.8°F
46.2°F
52.5°F
87%
0 in
0%
0%
6.7 mph
0.6


Air Quality

AQI: 2 - Moderate
PM2.5: 38.89 μg/m3
PM10: 41.17 μg/m3
Carbon Monoxide: 471.77 μg/m3
Nitrogen Dioxide: 49.69 μg/m3
Sulphur Dioxide: 10.38 μg/m3
Ozone: 7.36 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 12:21 AM
Sunset: 5:22 PM
Daylight: 10 hrs 2 mins
Moonrise: 9:31 AM
Moon Transit: 3:29 PM
Moonset: 9:39 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:59 PM - 5:29 PM

Minor Periods

9:09 PM - 10:39 PM
9:01 AM - 10:31 AM

Action Rating: 3 out of 5

Friday, January 23, 2026

Weather Forecast

Fog
48.6°F
46.6°F
47.9°F
97%
0 in
0%
0%
7.6 mph
0.5


Air Quality

AQI: 2 - Moderate
PM2.5: 20.71 μg/m3
PM10: 26 μg/m3
Carbon Monoxide: 254.93 μg/m3
Nitrogen Dioxide: 22.48 μg/m3
Sulphur Dioxide: 5.29 μg/m3
Ozone: 46.48 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 12:21 AM
Sunset: 5:23 PM
Daylight: 10 hrs 3 mins
Moonrise: 9:55 AM
Moon Transit: 6:54 AM
Moonset: 10:46 PM
Moon Phase: Waxing Crescent
Moon Illumination: 24.4%

Best Times for Fishing or Hunting

Major Periods

6:24 AM - 8:54 AM
6:24 AM - 8:54 AM

Minor Periods

10:16 PM - 11:46 PM
9:25 AM - 10:55 AM

Action Rating: 2 out of 5

Saturday, January 24, 2026

Weather Forecast

Partly Cloudy
60.3°F
44.1°F
50.1°F
83%
0 in
0%
0%
8.7 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 13.23 μg/m3
PM10: 17.95 μg/m3
Carbon Monoxide: 312.57 μg/m3
Nitrogen Dioxide: 24.75 μg/m3
Sulphur Dioxide: 5.41 μg/m3
Ozone: 50.44 μg/m3

Astronomical

Sunrise: 7:19 AM
Sun Transit: 12:21 AM
Sunset: 5:24 PM
Daylight: 10 hrs 5 mins
Moonrise: 10:20 AM
Moon Transit: 5:01 PM
Moonset: 11:54 PM
Moon Phase: First Quarter
Moon Illumination: 34.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:31 PM - 7:01 PM

Minor Periods

12:00 AM - 12:00 AM
9:50 AM - 11:20 AM

Action Rating: 2 out of 5

Sunday, January 25, 2026

Weather Forecast

Cloudy
55.2°F
43.7°F
49°F
77%
0 in
0%
0%
9.2 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 9.02 μg/m3
PM10: 17.58 μg/m3
Carbon Monoxide: 256.34 μg/m3
Nitrogen Dioxide: 25.82 μg/m3
Sulphur Dioxide: 4.63 μg/m3
Ozone: 52.4 μg/m3

Astronomical

Sunrise: 7:19 AM
Sun Transit: 12:22 AM
Sunset: 5:25 PM
Daylight: 10 hrs 7 mins
Moonrise: 10:48 AM
Moon Transit: 5:51 PM
Moonset: 12:54 AM
Moon Phase: First Quarter
Moon Illumination: 45.8%

Best Times for Fishing or Hunting

Major Periods

12:27 AM - 2:57 AM
5:21 PM - 7:51 PM

Minor Periods

10:18 AM - 11:48 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, January 26, 2026

Weather Forecast

Sunny
58.1°F
49.4°F
53.5°F
65%
0 in
0%
0%
5.8 mph
0


Air Quality

AQI: 2 - Moderate
PM2.5: 23.35 μg/m3
PM10: 25.41 μg/m3
Carbon Monoxide: 527.92 μg/m3
Nitrogen Dioxide: 48.28 μg/m3
Sulphur Dioxide: 6.33 μg/m3
Ozone: 19.62 μg/m3

Astronomical

Sunrise: 7:18 AM
Sun Transit: 12:22 AM
Sunset: 5:26 PM
Daylight: 10 hrs 9 mins
Moonrise: 11:20 AM
Moon Transit: 6:45 PM
Moonset: 1:06 AM
Moon Phase: First Quarter
Moon Illumination: 57.1%

Best Times for Fishing or Hunting

Major Periods

1:18 AM - 3:48 AM
6:15 PM - 8:45 PM

Minor Periods

10:50 AM - 12:20 AM
12:36 AM - 2:06 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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