Water Temperature of San Francisco Bay in San Rafael, CA

Current Water Temperature

61.0°F

Measurement Time: Tuesday, June 9, 2026, 3:00 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

73.6°F
Sunny
Sunny
76.8°F
74°F
61%
SW 4.9 mph
7 mph
71.8°F
56.3°F
0 in
0%
9 mi
1016 mbar
6.7

Five Day Weather Forecast

Patchy rain nearby
Tue
H: 80°F
L: 54°F
Sunny
Wed
H: 69°F
L: 53°F
Sunny
Thu
H: 71°F
L: 57°F
Sunny
Fri
H: 69°F
L: 54°F
Sunny
Sat
H: 66°F
L: 52°F

Air Quality

AQI: 1 - Good
PM2.5: 4.3 μg/m3
PM10: 5.8 μg/m3
Carbon Monoxide: 101 μg/m3
Nitrogen Dioxide: 2.8 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 44 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:09 PM
Sunset: 8:32 PM
Daylight: 14 hrs 45 mins
Moonrise: 1:49 AM
Moon Transit: 3:27 AM
Moonset: 2:36 PM
Moon Phase: Last Quarter
Moon Illumination: 21.6%

Best Times for Fishing or Hunting

Major Periods

2:57 AM - 5:27 AM
2:57 AM - 5:27 AM

Minor Periods

2:06 PM - 3:36 PM
1:19 AM - 2:49 AM

Action Rating: 4 out of 5

Red Flag Warning issued June 9 at 9:38AM PDT until June 11 at 9:00AM PDT by NWS San Francisco CA

Effective: Tue June 9, 2026, 9:38 AM
Expires: Tue June 9, 2026, 7:00 PM

...RED FLAG WARNING IN EFFECT FROM 11 PM WEDNESDAY TO 9 AM PDT THURSDAY DUE TO WIND AND LOW RELATIVE HUMIDITY FOR NORTH BAY INTERIOR MOUNTAINS AND EAST BAY HILLS... ....Hot, dry, and windy conditions combined with mixed vegetation, such as grass, will lead to critical fire weather conditions Wednesday night into Thursday morning... The National Weather Service in San Francisco CA has issued a Red Flag Warning. * AFFECTED AREA...East Bay Hills and North Bay Interior Mountains. * TIMING...From 11 PM Wednesday to 9 AM PDT Thursday. * WINDS 20 FOOT...Northwest winds 10 to 20 mph with gusts up to 45 mph. Ridge top wind gusts may exceed 60 mph. * RELATIVE HUMIDITY...Relative Humidity between 12 to 18 percent. * IMPACTS...Extreme fire behavior and rapid rates of spread likely on new and existing wildfires. There will be an increased risk for power outages.

Please advise responding agencies or fire crews in the field of this fire weather alert. Never leave burning debris or camp fires unattended; extinguish them completely. Avoid using equipment or machinery that could create a spark. Secure tow chains to avoid dragging and subsequent sparks. Never toss cigarette butts out of your vehicle's window. Remember, one less spark, one less flame. Familiarize yourself with your emergency plan! Where will you go? How will you get there? Do you have your go kit ready to go? Who will you call to let others know you are safe? Visit ready.gov/plan for more information.


Red Flag Warning issued June 8 at 9:18AM PDT until June 11 at 5:00PM PDT by NWS Sacramento CA

Effective: Mon June 8, 2026, 9:18 AM
Expires: Tue June 9, 2026, 12:15 PM

The National Weather Service in Sacramento has issued a Red Flag Warning for gusty winds and low humidity, which is in effect from 11 AM Wednesday to 5 PM PDT Thursday. The Fire Weather Watch is no longer in effect. * Winds...North winds 15 to 25 mph. Gusts 30 to 40 mph, strongest along the far western Sacramento Valley. * Humidity...Daytime minimum humidities of 9 to 15%; Overnight maximum relative humidities 25 to 50% * Highest Threat...Along and west of the Interstate 5 corridor in the Sacramento Valley. * 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 Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.


Red Flag Warning issued June 9 at 9:39AM PDT until June 11 at 5:00PM PDT by NWS Sacramento CA

Effective: Tue June 9, 2026, 9:39 AM
Expires: Wed June 10, 2026, 9:45 AM

* Winds...North winds 15 to 25 mph. Gusts 30 to 40 mph, strongest along the far western Sacramento Valley. * Humidity...Daytime minimum humidities of 9 to 15%; Overnight maximum relative humidities 25 to 50% * Highest Threat...Along and west of the Interstate 5 corridor in the Sacramento Valley. * 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 Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.


Red Flag Warning issued June 9 at 9:39AM PDT until June 11 at 5:00PM PDT by NWS Sacramento CA

Effective: Tue June 9, 2026, 9:39 AM
Expires: Wed June 10, 2026, 9:45 AM

The National Weather Service in Sacramento has issued a Red Flag Warning for gusty winds and low humidity, which is in effect from 11 AM Wednesday to 5 PM PDT Thursday. * Winds...North winds 15 to 25 mph. Gusts 30 to 40 mph, strongest along the far western Sacramento Valley. * Humidity...Daytime minimum humidities of 9 to 15%; Overnight maximum relative humidities 25 to 50% * Highest Threat...Along and west of the Interstate 5 corridor in the Sacramento Valley. * 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 Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.


Tuesday, June 9, 2026

Weather Forecast

Patchy rain nearby
80.4°F
53.9°F
66.5°F
69%
0.01 in
17%
0%
9.4 mph
9.5


Air Quality

AQI: 1 - Good
PM2.5: 6.84 μg/m3
PM10: 9.76 μg/m3
Carbon Monoxide: 106 μg/m3
Nitrogen Dioxide: 5.64 μg/m3
Sulphur Dioxide: 0.82 μg/m3
Ozone: 42.96 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:09 PM
Sunset: 8:32 PM
Daylight: 14 hrs 45 mins
Moonrise: 1:49 AM
Moon Transit: 3:27 AM
Moonset: 2:36 PM
Moon Phase: Last Quarter
Moon Illumination: 21.6%

Best Times for Fishing or Hunting

Major Periods

2:57 AM - 5:27 AM
2:57 AM - 5:27 AM

Minor Periods

2:06 PM - 3:36 PM
1:19 AM - 2:49 AM

Action Rating: 4 out of 5

Wednesday, June 10, 2026

Weather Forecast

Sunny
68.8°F
52.6°F
60.3°F
65%
0 in
4%
0%
7.8 mph
10


Air Quality

AQI: 1 - Good
PM2.5: 8.51 μg/m3
PM10: 11.2 μg/m3
Carbon Monoxide: 138.25 μg/m3
Nitrogen Dioxide: 8.38 μg/m3
Sulphur Dioxide: 0.79 μg/m3
Ozone: 58.75 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:09 PM
Sunset: 8:32 PM
Daylight: 14 hrs 45 mins
Moonrise: 2:15 AM
Moon Transit: 8:54 AM
Moonset: 3:45 PM
Moon Phase: Waning Crescent
Moon Illumination: 13.1%

Best Times for Fishing or Hunting

Major Periods

8:24 AM - 10:54 AM
4:20 PM - 6:50 PM

Minor Periods

3:15 PM - 4:45 PM
1:45 AM - 3:15 AM

Action Rating: 2 out of 5

Thursday, June 11, 2026

Weather Forecast

Sunny
71.4°F
57.4°F
62.6°F
59%
0 in
3%
0%
15.7 mph
10


Air Quality

AQI: 1 - Good
PM2.5: 14.2 μg/m3
PM10: 18.04 μg/m3
Carbon Monoxide: 132.42 μg/m3
Nitrogen Dioxide: 16.1 μg/m3
Sulphur Dioxide: 0.98 μg/m3
Ozone: 68.08 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:09 PM
Sunset: 8:33 PM
Daylight: 14 hrs 46 mins
Moonrise: 2:44 AM
Moon Transit: 9:45 AM
Moonset: 4:59 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.5%

Best Times for Fishing or Hunting

Major Periods

5:12 PM - 7:42 PM
9:15 AM - 11:45 AM

Minor Periods

4:29 PM - 5:59 PM
2:14 AM - 3:44 AM

Action Rating: 2 out of 5

Friday, June 12, 2026

Weather Forecast

Sunny
69.4°F
53.9°F
60.8°F
69%
0 in
5%
0%
13.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 14.47 μg/m3
PM10: 21.11 μg/m3
Carbon Monoxide: 109.01 μg/m3
Nitrogen Dioxide: 11.09 μg/m3
Sulphur Dioxide: 1.59 μg/m3
Ozone: 69.58 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:09 PM
Sunset: 8:33 PM
Daylight: 14 hrs 46 mins
Moonrise: 3:17 AM
Moon Transit: 10:41 AM
Moonset: 6:17 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

6:10 PM - 8:40 PM
10:11 AM - 12:41 AM

Minor Periods

5:47 PM - 7:17 PM
2:47 AM - 4:17 AM

Action Rating: 3 out of 5

Saturday, June 13, 2026

Weather Forecast

Sunny
66.1°F
51.7°F
58.4°F
76%
0 in
8%
0%
14.3 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 12.6 μg/m3
PM10: 17.92 μg/m3
Carbon Monoxide: 120.17 μg/m3
Nitrogen Dioxide: 8.02 μg/m3
Sulphur Dioxide: 1.92 μg/m3
Ozone: 59.17 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:09 PM
Sunset: 8:34 PM
Daylight: 14 hrs 47 mins
Moonrise: 4:00 AM
Moon Transit: 11:43 AM
Moonset: 7:35 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

7:14 PM - 9:44 PM
11:13 AM - 1:43 PM

Minor Periods

7:05 PM - 8:35 PM
3:30 AM - 5:00 AM

Action Rating: 3 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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