Water Temperature of San Francisco Bay in San Rafael, CA

Current Water Temperature

61.3°F

Measurement Time: Friday, May 15, 2026, 2:00 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

68°F
Sunny
Sunny
68°F
71.4°F
49%
SW 2.9 mph
3.8 mph
70.7°F
49.9°F
0 in
0%
9 mi
1016 mbar
4.2

Five Day Weather Forecast

Sunny
Fri
H: 83°F
L: 51°F
Sunny
Sat
H: 68°F
L: 50°F
Sunny
Sun
H: 67°F
L: 48°F
Sunny
Mon
H: 69°F
L: 53°F
Sunny
Tue
H: 68°F
L: 52°F

Air Quality

AQI: 1 - Good
PM2.5: 8.85 μg/m3
PM10: 12.45 μg/m3
Carbon Monoxide: 128.85 μg/m3
Nitrogen Dioxide: 2.65 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 78 μg/m3

Astronomical

Sunrise: 5:59 AM
Sun Transit: 1:06 PM
Sunset: 8:14 PM
Daylight: 14 hrs 14 mins
Moonrise: 4:48 AM
Moon Transit: 12:00 AM
Moonset: 7:26 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

7:30 PM - 10:00 PM
11:30 AM - 2:00 PM

Minor Periods

6:56 PM - 8:26 PM
4:18 AM - 5:48 AM

Action Rating: 5 out of 5

Beach Hazards Statement issued May 14 at 12:04PM PDT until May 18 at 9:00AM PDT by NWS San Francisco CA

Effective: Thu May 14, 2026, 12:04 PM
Expires: Fri May 15, 2026, 5:00 AM

* WHAT...Strong northerly winds will generate very rough conditions at area beaches along with strong rip and long shore currents. * WHERE...Greatest impacts will be along west facing beaches of the Pacific coastline. * WHEN...From Friday afternoon through Monday morning. * IMPACTS...Dangerous wind and wave conditions will impact beaches and water activities such as swimming, surfing, boating, and tide pooling. Rough seas can sweep up the beach and over rocks and jetties, pulling people into a cold turbulent ocean. Rip currents will be stronger than normal and long shore currents can move people and items in the water quickly away from the point of entry. Local beach and cliff erosion is possible. Water temperatures will also cool rapidly due to strong upwelling conditions during this time. Large tidal swings can cutoff access to beach walkers.

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 15 at 4:43AM PDT until May 18 at 9:00AM PDT by NWS San Francisco CA

Effective: Fri May 15, 2026, 4:43 AM
Expires: Fri May 15, 2026, 3:00 PM

* WHAT...Strong northerly winds will generate very rough conditions at area beaches along with strong rip and long shore currents. * WHERE...Greatest impacts will be along west facing beaches of the Pacific coastline. * WHEN...From Friday afternoon through Monday morning. * IMPACTS...Dangerous wind and wave conditions will impact beaches and water activities such as swimming, surfing, boating, and tide pooling. Rough seas can sweep up the beach and over rocks and jetties, pulling people into a cold turbulent ocean. Rip currents will be stronger than normal and long shore currents can move people and items in the water quickly away from the point of entry. Local beach and cliff erosion is possible. Water temperatures will also cool rapidly due to strong upwelling conditions during this time. Large tidal swings can cutoff access to beach walkers.

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.


Fire Weather Watch issued May 14 at 10:24AM PDT until May 18 at 8:00PM PDT by NWS Sacramento CA

Effective: Thu May 14, 2026, 10:24 AM
Expires: Fri May 15, 2026, 5:00 PM

The National Weather Service in Sacramento has issued a Fire Weather Watch for gusty winds and low humidity, which is in effect from late Friday night through Monday evening. * Winds...North winds 15 to 25 mph. Gusts 35 to 45 mph, locally up to 50 mph around the Delta. * Humidity...Daytime minimum humidities of 9 to 15%. * Highest Threat...Along the Interstate 5 corridor in the Sacramento Valley. Strongest winds are expected Sunday into Monday. * Impacts...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity. Outdoor burning is not recommended

A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.


Friday, May 15, 2026

Weather Forecast

Sunny
83.3°F
51.4°F
64.9°F
55%
0 in
0%
0%
12.1 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 7.14 μg/m3
PM10: 9.6 μg/m3
Carbon Monoxide: 138.97 μg/m3
Nitrogen Dioxide: 6.13 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 62.92 μg/m3

Astronomical

Sunrise: 5:59 AM
Sun Transit: 1:06 PM
Sunset: 8:14 PM
Daylight: 14 hrs 14 mins
Moonrise: 4:48 AM
Moon Transit: 12:00 AM
Moonset: 7:26 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

7:30 PM - 10:00 PM
11:30 AM - 2:00 PM

Minor Periods

6:56 PM - 8:26 PM
4:18 AM - 5:48 AM

Action Rating: 5 out of 5

Saturday, May 16, 2026

Weather Forecast

Sunny
67.7°F
50.4°F
57.3°F
63%
0 in
0%
0%
15.7 mph
7.9


Air Quality

AQI: 1 - Good
PM2.5: 8.42 μg/m3
PM10: 12.31 μg/m3
Carbon Monoxide: 135.77 μg/m3
Nitrogen Dioxide: 3.59 μg/m3
Sulphur Dioxide: 1.36 μg/m3
Ozone: 79.08 μg/m3

Astronomical

Sunrise: 5:59 AM
Sun Transit: 1:06 PM
Sunset: 8:14 PM
Daylight: 14 hrs 16 mins
Moonrise: 5:27 AM
Moon Transit: 1:01 PM
Moonset: 8:46 PM
Moon Phase: New
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

8:31 PM - 11:01 PM
12:31 AM - 3:01 PM

Minor Periods

8:16 PM - 9:46 PM
4:57 AM - 6:27 AM

Action Rating: 6 out of 5

Sunday, May 17, 2026

Weather Forecast

Sunny
67.3°F
47.9°F
57°F
61%
0 in
0%
0%
13.6 mph
8.7


Air Quality

AQI: 1 - Good
PM2.5: 7.13 μg/m3
PM10: 10.07 μg/m3
Carbon Monoxide: 131.05 μg/m3
Nitrogen Dioxide: 4.77 μg/m3
Sulphur Dioxide: 1.53 μg/m3
Ozone: 67.32 μg/m3

Astronomical

Sunrise: 5:58 AM
Sun Transit: 1:06 PM
Sunset: 8:15 PM
Daylight: 14 hrs 18 mins
Moonrise: 6:15 AM
Moon Transit: 2:05 PM
Moonset: 10:03 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:35 PM - 4:05 PM

Minor Periods

9:33 PM - 11:03 PM
5:45 AM - 7:15 AM

Action Rating: 4 out of 5

Monday, May 18, 2026

Weather Forecast

Sunny
69.3°F
53.1°F
61.3°F
48%
0 in
0%
0%
13.2 mph
8.5


Air Quality

AQI: 1 - Good
PM2.5: 3.85 μg/m3
PM10: 4.85 μg/m3
Carbon Monoxide: 132.05 μg/m3
Nitrogen Dioxide: 3.46 μg/m3
Sulphur Dioxide: 1.74 μg/m3
Ozone: 83.64 μg/m3

Astronomical

Sunrise: 5:57 AM
Sun Transit: 1:06 PM
Sunset: 8:16 PM
Daylight: 14 hrs 19 mins
Moonrise: 7:14 AM
Moon Transit: 3:12 PM
Moonset: 11:10 PM
Moon Phase: New
Moon Illumination: 2.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:42 PM - 5:12 PM

Minor Periods

12:00 AM - 12:00 AM
6:44 AM - 8:14 AM

Action Rating: 3 out of 5

Tuesday, May 19, 2026

Weather Forecast

Sunny
67.8°F
52.1°F
58.9°F
68%
0 in
0%
0%
9.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 10.18 μg/m3
PM10: 12.97 μg/m3
Carbon Monoxide: 170.07 μg/m3
Nitrogen Dioxide: 13.3 μg/m3
Sulphur Dioxide: 1.46 μg/m3
Ozone: 49.38 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 1:06 PM
Sunset: 8:17 PM
Daylight: 14 hrs 21 mins
Moonrise: 8:24 AM
Moon Transit: 4:18 PM
Moonset: 12:10 AM
Moon Phase: Waxing Crescent
Moon Illumination: 7.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:48 PM - 6:18 PM

Minor Periods

7:54 AM - 9:24 AM
12:00 AM - 12:00 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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