Water Temperature of San Francisco Bay in San Rafael, CA

Current Water Temperature

54.9°F

Measurement Time: Saturday, February 21, 2026, 7:00 PM PST

Temperature Locations

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Local Points of Interest

Richmond, CA

San Francisco Bay

Station Name: SAN FRANCISCO BAY A RICHMOND-SAN RAFAEL BRIDGE CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
Richmond-San Rafael Bridge
San Rafael, CA 94801
Marin County

GPS Coordinates: 37.93527778, -122.4463889

Nearby Water Temperatures

San Francisco Bay, Richmond, CA (2.6 mi)
San Francisco Bay, San Francisco, CA (7.6 mi)
Rodeo Pond, Sausalito, CA (8.3 mi)
Rodeo Lagoon, Sausalito, CA (8.5 mi)
Rodeo Lagoon, Sausalito, CA (8.7 mi)
San Francisco Bay, San Francisco, CA (9 mi)
San Francisco Bay, San Francisco, CA (9.5 mi)
San Francisco Bay, Alameda, CA (13.8 mi)
Carquinez Strait, Martinez, CA (18.8 mi)
Suisun Bay, Concord, CA (23.7 mi)
San Francisco Bay, San Mateo, CA (23.8 mi)
Pacific Ocean, San Francisco, CA (24.8 mi)
Drakes Bay, Inverness, CA (29 mi)
Redwood Creek, Redwood City, CA (32.3 mi)
San Francisco Bay, Menlo Park, CA (34.7 mi)

Weather for San Rafael, California

Current Weather

48.6°F
Overcast
Overcast
42.7°F
48.3°F
81%
SE 15.4 mph
21.8 mph
45.5°F
44.2°F
0 in
100%
9 mi
1021 mbar
0

Five Day Weather Forecast

Sunny
Sun
H: 65°F
L: 47°F
Partly Cloudy
Mon
H: 63°F
L: 47°F
Moderate rain
Tue
H: 58°F
L: 52°F
Patchy rain nearby
Wed
H: 61°F
L: 52°F
Sunny
Thu
H: 60°F
L: 52°F

Air Quality

AQI: 2 - Moderate
PM2.5: 10.25 μg/m3
PM10: 13.45 μg/m3
Carbon Monoxide: 223.85 μg/m3
Nitrogen Dioxide: 16.65 μg/m3
Sulphur Dioxide: 4.65 μg/m3
Ozone: 61 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 12:23 AM
Sunset: 5:56 PM
Daylight: 11 hrs 5 mins
Moonrise: 9:22 AM
Moon Transit: 4:41 PM
Moonset: 12:12 PM
Moon Phase: Waxing Crescent
Moon Illumination: 29.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:11 PM - 6:41 PM

Minor Periods

12:00 AM - 12:00 AM
8:52 AM - 10:22 AM

Action Rating: 2 out of 5

Sunday, February 22, 2026

Weather Forecast

Sunny
64.8°F
47.1°F
53.1°F
82%
0 in
0%
0%
15.4 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 9.18 μg/m3
PM10: 14.26 μg/m3
Carbon Monoxide: 185.37 μg/m3
Nitrogen Dioxide: 13.18 μg/m3
Sulphur Dioxide: 3.61 μg/m3
Ozone: 72.16 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 12:23 AM
Sunset: 5:56 PM
Daylight: 11 hrs 5 mins
Moonrise: 9:22 AM
Moon Transit: 4:41 PM
Moonset: 12:12 PM
Moon Phase: Waxing Crescent
Moon Illumination: 29.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:11 PM - 6:41 PM

Minor Periods

12:00 AM - 12:00 AM
8:52 AM - 10:22 AM

Action Rating: 2 out of 5

Monday, February 23, 2026

Weather Forecast

Partly Cloudy
63°F
47.1°F
54.6°F
84%
0 in
0%
0%
6.5 mph
0.9


Air Quality

AQI: 2 - Moderate
PM2.5: 20.61 μg/m3
PM10: 24.47 μg/m3
Carbon Monoxide: 261.81 μg/m3
Nitrogen Dioxide: 35.93 μg/m3
Sulphur Dioxide: 5.73 μg/m3
Ozone: 35.92 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 12:23 AM
Sunset: 5:57 PM
Daylight: 11 hrs 8 mins
Moonrise: 10:00 AM
Moon Transit: 5:38 PM
Moonset: 12:12 AM
Moon Phase: First Quarter
Moon Illumination: 39.8%

Best Times for Fishing or Hunting

Major Periods

12:09 AM - 2:39 AM
5:08 PM - 7:38 PM

Minor Periods

9:30 AM - 11:00 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Tuesday, February 24, 2026

Weather Forecast

Moderate rain
58.3°F
52°F
54.5°F
95%
0.68 in
83%
0%
11.2 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 15.31 μg/m3
PM10: 17.2 μg/m3
Carbon Monoxide: 231.01 μg/m3
Nitrogen Dioxide: 37.21 μg/m3
Sulphur Dioxide: 5.2 μg/m3
Ozone: 36.12 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 12:22 AM
Sunset: 5:58 PM
Daylight: 11 hrs 10 mins
Moonrise: 10:46 AM
Moon Transit: 6:38 PM
Moonset: 1:26 AM
Moon Phase: First Quarter
Moon Illumination: 51.1%

Best Times for Fishing or Hunting

Major Periods

1:07 AM - 3:37 AM
6:08 PM - 8:38 PM

Minor Periods

10:16 AM - 11:46 AM
12:56 AM - 2:26 AM

Action Rating: 3 out of 5

Wednesday, February 25, 2026

Weather Forecast

Patchy rain nearby
60.8°F
52°F
56.8°F
90%
0.02 in
88%
0%
5.6 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 5.81 μg/m3
PM10: 7.49 μg/m3
Carbon Monoxide: 145.13 μg/m3
Nitrogen Dioxide: 9.16 μg/m3
Sulphur Dioxide: 2.42 μg/m3
Ozone: 59.08 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 12:22 AM
Sunset: 5:59 PM
Daylight: 11 hrs 13 mins
Moonrise: 11:42 AM
Moon Transit: 7:41 PM
Moonset: 2:37 AM
Moon Phase: First Quarter
Moon Illumination: 62.3%

Best Times for Fishing or Hunting

Major Periods

2:09 AM - 4:39 AM
7:11 PM - 9:41 PM

Minor Periods

11:12 AM - 12:42 AM
2:07 AM - 3:37 AM

Action Rating: 2 out of 5

Thursday, February 26, 2026

Weather Forecast

Sunny
59.6°F
52°F
54.7°F
87%
0 in
0%
0%
4.9 mph
0


Air Quality

AQI: 2 - Moderate
PM2.5: 15.62 μg/m3
PM10: 17.39 μg/m3
Carbon Monoxide: 336.97 μg/m3
Nitrogen Dioxide: 36.77 μg/m3
Sulphur Dioxide: 3.55 μg/m3
Ozone: 30.38 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 12:22 AM
Sunset: 6:00 PM
Daylight: 11 hrs 15 mins
Moonrise: 12:49 AM
Moon Transit: 8:43 PM
Moonset: 3:39 AM
Moon Phase: First Quarter
Moon Illumination: 72.9%

Best Times for Fishing or Hunting

Major Periods

3:11 AM - 5:41 AM
8:13 PM - 10:43 PM

Minor Periods

12:19 AM - 1:49 PM
3:09 AM - 4:39 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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