Water Temperature of San Francisco Bay in San Rafael, CA

Current Water Temperature

61.0°F

Measurement Time: Saturday, May 2, 2026, 10:00 PM 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

55.6°F
Overcast
Overcast
54.9°F
51.2°F
82%
W 4.7 mph
7.4 mph
51.4°F
46.9°F
0 in
100%
9 mi
1011 mbar
0

Five Day Weather Forecast

Partly Cloudy
Sun
H: 64°F
L: 51°F
Cloudy
Mon
H: 59°F
L: 52°F
Patchy rain nearby
Tue
H: 62°F
L: 52°F
Sunny
Wed
H: 63°F
L: 52°F
Sunny
Thu
H: 65°F
L: 52°F

Air Quality

AQI: 1 - Good
PM2.5: 11.05 μg/m3
PM10: 16.25 μg/m3
Carbon Monoxide: 132.85 μg/m3
Nitrogen Dioxide: 3.25 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 94 μg/m3

Astronomical

Sunrise: 6:11 AM
Sun Transit: 1:06 PM
Sunset: 8:03 PM
Daylight: 13 hrs 51 mins
Moonrise: 10:33 PM
Moon Transit: 2:17 AM
Moonset: 6:57 AM
Moon Phase: Full
Moon Illumination: 94.4%

Best Times for Fishing or Hunting

Major Periods

1:47 AM - 4:17 AM
9:43 AM - 12:13 AM

Minor Periods

10:03 PM - 11:33 PM
6:27 AM - 7:57 AM

Action Rating: 4 out of 5

Beach Hazards Statement issued May 2 at 12:45PM PDT until May 3 at 11:00PM PDT by NWS San Francisco CA

Effective: Sat May 2, 2026, 12:45 PM
Expires: Sun May 3, 2026, 5:00 AM

* WHAT...An incoming long-period northwesterly swell will increase the risk of sneaker waves and strong rip currents. * WHERE...Beaches along the Pacific Coast. * WHEN...Through Sunday evening. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion can be expected. Sneaker waves can sweep across the shoreline without warning, pulling people into the sea from rocks, jetties and beaches.

Don't be fooled by an ocean that looks calm. There can be 20 to 30 minutes of small waves before a sneaker wave strikes. Avoid steep beaches and 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.


Beach Hazards Statement issued May 3 at 4:41AM PDT until May 3 at 11:00PM PDT by NWS San Francisco CA

Effective: Sun May 3, 2026, 4:41 AM
Expires: Sun May 3, 2026, 3:00 PM

* WHAT...An incoming long-period northwesterly swell will increase the risk of sneaker waves and strong rip currents. * WHERE...Beaches along the Pacific Coast. * WHEN...Now through Sunday evening. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion can be expected. Sneaker waves can sweep across the shoreline without warning, pulling people into the sea from rocks, jetties and beaches.

Don't be fooled by an ocean that looks calm. There can be 20 to 30 minutes of small waves before a sneaker wave strikes. Avoid steep beaches and 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.
Sunday, May 3, 2026

Weather Forecast

Partly Cloudy
63.9°F
50.7°F
55.1°F
78%
0 in
0%
0%
13.6 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 11.47 μg/m3
PM10: 16.36 μg/m3
Carbon Monoxide: 134.89 μg/m3
Nitrogen Dioxide: 4.75 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 82.6 μg/m3

Astronomical

Sunrise: 6:11 AM
Sun Transit: 1:06 PM
Sunset: 8:03 PM
Daylight: 13 hrs 51 mins
Moonrise: 10:33 PM
Moon Transit: 2:17 AM
Moonset: 6:57 AM
Moon Phase: Full
Moon Illumination: 94.4%

Best Times for Fishing or Hunting

Major Periods

1:47 AM - 4:17 AM
9:43 AM - 12:13 AM

Minor Periods

10:03 PM - 11:33 PM
6:27 AM - 7:57 AM

Action Rating: 4 out of 5

Monday, May 4, 2026

Weather Forecast

Cloudy
59.3°F
52°F
55.2°F
69%
0 in
0%
0%
11.6 mph
4.8


Air Quality

AQI: 1 - Good
PM2.5: 9.62 μg/m3
PM10: 13.86 μg/m3
Carbon Monoxide: 134.69 μg/m3
Nitrogen Dioxide: 4.4 μg/m3
Sulphur Dioxide: 2.1 μg/m3
Ozone: 85.52 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 1:06 PM
Sunset: 8:04 PM
Daylight: 13 hrs 53 mins
Moonrise: 11:28 PM
Moon Transit: 3:07 AM
Moonset: 7:39 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.0%

Best Times for Fishing or Hunting

Major Periods

2:37 AM - 5:07 AM
10:33 AM - 1:03 PM

Minor Periods

12:00 AM - 12:00 AM
7:09 AM - 8:39 AM

Action Rating: 2 out of 5

Tuesday, May 5, 2026

Weather Forecast

Patchy rain nearby
61.8°F
52°F
56°F
79%
0.02 in
87%
0%
11.6 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 8.38 μg/m3
PM10: 12.16 μg/m3
Carbon Monoxide: 134.57 μg/m3
Nitrogen Dioxide: 5 μg/m3
Sulphur Dioxide: 2.07 μg/m3
Ozone: 86.48 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 1:06 PM
Sunset: 8:05 PM
Daylight: 13 hrs 55 mins
Moonrise: 12:28 AM
Moon Transit: 3:58 AM
Moonset: 8:29 AM
Moon Phase: Waning Gibbous
Moon Illumination: 79.8%

Best Times for Fishing or Hunting

Major Periods

3:28 AM - 5:58 AM
11:25 AM - 1:55 PM

Minor Periods

7:59 AM - 9:29 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, May 6, 2026

Weather Forecast

Sunny
62.8°F
52.2°F
56.3°F
84%
0 in
0%
0%
9.2 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 9.96 μg/m3
PM10: 13.28 μg/m3
Carbon Monoxide: 143.59 μg/m3
Nitrogen Dioxide: 6.27 μg/m3
Sulphur Dioxide: 2.18 μg/m3
Ozone: 76.4 μg/m3

Astronomical

Sunrise: 6:08 AM
Sun Transit: 1:06 PM
Sunset: 8:05 PM
Daylight: 13 hrs 57 mins
Moonrise: 12:18 AM
Moon Transit: 4:49 AM
Moonset: 9:24 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.0%

Best Times for Fishing or Hunting

Major Periods

4:19 AM - 6:49 AM
12:16 AM - 2:46 PM

Minor Periods

8:54 AM - 10:24 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, May 7, 2026

Weather Forecast

Sunny
64.8°F
51.5°F
55.5°F
84%
0 in
0%
0%
9.4 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 10.84 μg/m3
PM10: 13.72 μg/m3
Carbon Monoxide: 153.2 μg/m3
Nitrogen Dioxide: 8.01 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 67.23 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 1:06 PM
Sunset: 8:06 PM
Daylight: 13 hrs 59 mins
Moonrise: 1:00 AM
Moon Transit: 5:39 AM
Moonset: 10:24 AM
Moon Phase: Waning Gibbous
Moon Illumination: 59.1%

Best Times for Fishing or Hunting

Major Periods

5:09 AM - 7:39 AM
1:06 PM - 3:36 PM

Minor Periods

9:54 AM - 11:24 AM
12:30 AM - 2:00 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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