Water Temperature of San Francisco Bay in San Rafael, CA

Current Water Temperature

59.0°F

Measurement Time: Wednesday, May 27, 2026, 5:00 AM PDT

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

73.4°F
Sunny
Sunny
76.5°F
74.9°F
36%
SSW 7.6 mph
10.8 mph
72.3°F
50.5°F
0 in
0%
9 mi
1008 mbar
6.3

Five Day Weather Forecast

Sunny
Wed
H: 76°F
L: 48°F
Moderate rain
Thu
H: 63°F
L: 52°F
Patchy rain nearby
Fri
H: 60°F
L: 52°F
Sunny
Sat
H: 63°F
L: 50°F
Sunny
Sun
H: 65°F
L: 50°F

Air Quality

AQI: 1 - Good
PM2.5: 12.55 μg/m3
PM10: 18.65 μg/m3
Carbon Monoxide: 123.85 μg/m3
Nitrogen Dioxide: 7.95 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 69 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:07 PM
Sunset: 8:23 PM
Daylight: 14 hrs 32 mins
Moonrise: 5:22 PM
Moon Transit: 10:41 PM
Moonset: 3:28 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.7%

Best Times for Fishing or Hunting

Major Periods

5:22 AM - 7:52 AM
12:00 AM - 12:00 AM

Minor Periods

4:52 PM - 6:22 PM
2:58 AM - 4:28 AM

Action Rating: 3 out of 5

Beach Hazards Statement issued May 26 at 10:45PM PDT until May 27 at 9:00AM PDT by NWS San Francisco CA

Effective: Tue May 26, 2026, 10:45 PM
Expires: Wed May 27, 2026, 9:00 AM

* WHAT...Strong northwest winds will generate very rough seas including strong rip currents at area beaches. * WHERE...Pacific Coast beaches. * WHEN...Now through 9 am Wednesday morning. * IMPACTS...Dangerous conditions are forecast along the shoreline. Hazards include strong rip currents and large breaking waves.

Stay off of jetties, piers, rocks, and other waterside infrastructure. Remain out of the water to avoid hazardous surf and NEVER turn your back on the ocean. Monitor local weather, surf and tide forecasts at www.weather.gov/mtr.
Wednesday, May 27, 2026

Weather Forecast

Sunny
75.9°F
48°F
61°F
67%
0 in
0%
0%
11.6 mph
6.4


Air Quality

AQI: 1 - Good
PM2.5: 6.75 μg/m3
PM10: 9.11 μg/m3
Carbon Monoxide: 119.93 μg/m3
Nitrogen Dioxide: 5.97 μg/m3
Sulphur Dioxide: 1.67 μg/m3
Ozone: 51.28 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:07 PM
Sunset: 8:23 PM
Daylight: 14 hrs 32 mins
Moonrise: 5:22 PM
Moon Transit: 10:41 PM
Moonset: 3:28 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.7%

Best Times for Fishing or Hunting

Major Periods

5:22 AM - 7:52 AM
12:00 AM - 12:00 AM

Minor Periods

4:52 PM - 6:22 PM
2:58 AM - 4:28 AM

Action Rating: 3 out of 5

Thursday, May 28, 2026

Weather Forecast

Moderate rain
62.6°F
52.4°F
57.1°F
79%
0.25 in
84%
0%
14.5 mph
6.8


Air Quality

AQI: 1 - Good
PM2.5: 11.88 μg/m3
PM10: 16.23 μg/m3
Carbon Monoxide: 118.33 μg/m3
Nitrogen Dioxide: 9.67 μg/m3
Sulphur Dioxide: 2.29 μg/m3
Ozone: 68.56 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:07 PM
Sunset: 8:24 PM
Daylight: 14 hrs 34 mins
Moonrise: 6:24 PM
Moon Transit: 11:26 PM
Moonset: 3:54 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.7%

Best Times for Fishing or Hunting

Major Periods

6:05 AM - 8:35 AM
12:00 AM - 12:00 AM

Minor Periods

5:54 PM - 7:24 PM
3:24 AM - 4:54 AM

Action Rating: 3 out of 5

Friday, May 29, 2026

Weather Forecast

Patchy rain nearby
59.9°F
51.7°F
55.9°F
85%
0.01 in
84%
0%
7.6 mph
7.5


Air Quality

AQI: 1 - Good
PM2.5: 8.73 μg/m3
PM10: 12.08 μg/m3
Carbon Monoxide: 111.07 μg/m3
Nitrogen Dioxide: 5.33 μg/m3
Sulphur Dioxide: 1.79 μg/m3
Ozone: 71.32 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:07 PM
Sunset: 8:25 PM
Daylight: 14 hrs 35 mins
Moonrise: 7:25 PM
Moon Transit: 12:00 AM
Moonset: 4:23 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
6:51 AM - 9:21 AM

Minor Periods

6:55 PM - 8:25 PM
3:53 AM - 5:23 AM

Action Rating: 4 out of 5

Saturday, May 30, 2026

Weather Forecast

Sunny
63.4°F
50.4°F
56.5°F
77%
0 in
0%
0%
10.7 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 9.48 μg/m3
PM10: 13.17 μg/m3
Carbon Monoxide: 124.45 μg/m3
Nitrogen Dioxide: 5.27 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 59.08 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:07 PM
Sunset: 8:26 PM
Daylight: 14 hrs 36 mins
Moonrise: 8:26 PM
Moon Transit: 12:13 AM
Moonset: 4:57 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:39 AM - 10:09 AM

Minor Periods

7:56 PM - 9:26 PM
4:27 AM - 5:57 AM

Action Rating: 5 out of 5

Sunday, May 31, 2026

Weather Forecast

Sunny
65.2°F
50.1°F
56.7°F
72%
0 in
0%
0%
9.8 mph
8.3


Air Quality

AQI: 1 - Good
PM2.5: 11.14 μg/m3
PM10: 15.26 μg/m3
Carbon Monoxide: 137.54 μg/m3
Nitrogen Dioxide: 9.75 μg/m3
Sulphur Dioxide: 1.37 μg/m3
Ozone: 49.54 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:07 PM
Sunset: 8:26 PM
Daylight: 14 hrs 37 mins
Moonrise: 9:22 PM
Moon Transit: 1:02 AM
Moonset: 5:37 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:32 AM - 3:02 AM
8:30 AM - 11:00 AM

Minor Periods

8:52 PM - 10:22 PM
5:07 AM - 6:37 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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