Water Temperature of San Francisco Bay in San Rafael, CA

Current Water Temperature

62.8°F 17.1°C
Cool Brisk & Refreshing
62.8°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Feels brisk on entry. Great for short dips; wetsuit recommended for extended swimming or water sports.

Measurement Time: Wednesday, November 11, 2026, 8:00 AM PST

Temperature Locations

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Local Points of Interest

Richmond, CA

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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, Crockett, CA (14.8 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

64°F
Sunny
Conditions: Sunny
Humidity: 61%
Feels Like: 61.3°F
Wind: NE 6.4 mph
Wind Gusts: 9.8 mph
Pressure: 29.98 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 19 mi
UV Index: 0.4

Five-Day Weather Forecast

Fog
Wed
H: 64°F
L: 55°F
Fog
Thu
H: 62°F
L: 57°F
Moderate Rain Showers
Fri
H: 61°F
L: 54°F
Light Drizzle
Sat
H: 62°F
L: 53°F
Moderate Rain Showers
Sun
H: 62°F
L: 53°F

Air Quality

EPA Index 2 • Moderate

Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

PM2.5
17.6 μg/m³
Moderate
PM10
19 μg/m³
Good
Ozone (O3)
71 μg/m³
Photochemical
NO2
21.7 μg/m³
Nitrogen Dioxide
SO2
3.8 μg/m³
Sulfur Dioxide
CO
236 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 14m daylight
Sunrise 6:47 AM
Solar Noon 11:53 AM
Sunset 5:01 PM
Moon
New • 2%
Moonrise 9:22 AM
Transit 1:55 PM
Moonset 6:28 PM

Best Times for Fishing or Hunting

Major Periods

12:59 AM - 3:29 AM
1:25 PM - 3:55 PM

Minor Periods

8:52 AM - 10:22 AM
5:58 PM - 7:28 PM
Action Rating:
Good Action 3/5
Wednesday, November 11, 2026

Weather Forecast

Conditions: Fog
Average Temperature: 59.5°F
Average Humidity: 84%
Chance of Rain: 0%
Wind: 10.1 mph
UV Index: 4

Air Quality

EPA Index 2 • Moderate
PM2.5
22.8 μg/m³
Moderate
PM10
24.4 μg/m³
Good
Ozone (O3)
29.9 μg/m³
Photochemical
NO2
33.6 μg/m³
Nitrogen Dioxide
SO2
2.3 μg/m³
Sulfur Dioxide
CO
294.5 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 14m daylight
Sunrise 6:47 AM
Solar Noon 11:53 AM
Sunset 5:01 PM
Moon
New • 2%
Moonrise 9:22 AM
Transit 1:55 PM
Moonset 6:28 PM

Best Times for Fishing or Hunting

Major Periods

12:59 AM - 3:29 AM
1:25 PM - 3:55 PM

Minor Periods

8:52 AM - 10:22 AM
5:58 PM - 7:28 PM
Action Rating:
Good Action 3/5
Thursday, November 12, 2026

Weather Forecast

Conditions: Fog
Average Temperature: 59.7°F
Average Humidity: 89%
Chance of Rain: 3%
Wind: 16.9 mph
UV Index: 3.7

Air Quality

EPA Index 2 • Moderate
PM2.5
19.4 μg/m³
Moderate
PM10
22.4 μg/m³
Good
Ozone (O3)
39.2 μg/m³
Photochemical
NO2
28.6 μg/m³
Nitrogen Dioxide
SO2
1.5 μg/m³
Sulfur Dioxide
CO
291.8 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 13m daylight
Sunrise 6:48 AM
Solar Noon 11:53 AM
Sunset 5:00 PM
Moon
Waxing Crescent • 6%
Moonrise 10:15 AM
Transit 2:46 PM
Moonset 7:20 PM

Best Times for Fishing or Hunting

Major Periods

1:50 AM - 4:20 AM
2:16 PM - 4:46 PM

Minor Periods

9:45 AM - 11:15 AM
6:50 PM - 8:20 PM
Action Rating:
Good Action 3/5
Friday, November 13, 2026

Weather Forecast

Conditions: Moderate Rain Showers
Average Temperature: 58.1°F
Average Humidity: 85%
Chance of Rain: 99%
Wind: 27 mph
UV Index: 1.4

Air Quality

EPA Index 2 • Moderate
PM2.5
7.3 μg/m³
Good
PM10
10.8 μg/m³
Good
Ozone (O3)
69.9 μg/m³
Photochemical
NO2
9.2 μg/m³
Nitrogen Dioxide
SO2
0.5 μg/m³
Sulfur Dioxide
CO
123.8 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 11m daylight
Sunrise 6:49 AM
Solar Noon 11:54 AM
Sunset 4:59 PM
Moon
Waxing Crescent • 13%
Moonrise 11:00 AM
Transit 3:37 PM
Moonset 8:18 PM

Best Times for Fishing or Hunting

Major Periods

2:42 AM - 5:12 AM
3:07 PM - 5:37 PM

Minor Periods

10:30 AM - 12:00 PM
7:48 PM - 9:18 PM
Action Rating:
Fair Action 2/5
Saturday, November 14, 2026

Weather Forecast

Conditions: Light Drizzle
Average Temperature: 56.8°F
Average Humidity: 75%
Chance of Rain: 46%
Wind: 6.5 mph
UV Index: 3.8

Air Quality

EPA Index 2 • Moderate
PM2.5
13 μg/m³
Moderate
PM10
17.7 μg/m³
Good
Ozone (O3)
43 μg/m³
Photochemical
NO2
21.6 μg/m³
Nitrogen Dioxide
SO2
1.1 μg/m³
Sulfur Dioxide
CO
153.3 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 9m daylight
Sunrise 6:50 AM
Solar Noon 11:54 AM
Sunset 4:59 PM
Moon
Waxing Crescent • 21%
Moonrise 11:38 AM
Transit 4:25 PM
Moonset 9:17 PM

Best Times for Fishing or Hunting

Major Periods

3:31 AM - 6:01 AM
3:55 PM - 6:25 PM

Minor Periods

11:08 AM - 12:38 PM
8:47 PM - 10:17 PM
Action Rating:
Fair Action 2/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Moderate Rain Showers
Average Temperature: 57.9°F
Average Humidity: 81%
Chance of Rain: 77%
Wind: 11.5 mph
UV Index: 3

Air Quality

EPA Index 2 • Moderate
PM2.5
11.7 μg/m³
Good
PM10
15.8 μg/m³
Good
Ozone (O3)
52.5 μg/m³
Photochemical
NO2
16.5 μg/m³
Nitrogen Dioxide
SO2
0.8 μg/m³
Sulfur Dioxide
CO
161.6 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 7m daylight
Sunrise 6:51 AM
Solar Noon 11:54 AM
Sunset 4:58 PM
Moon
Waxing Crescent • 31%
Moonrise 12:12 PM
Transit 5:11 PM
Moonset 10:19 PM

Best Times for Fishing or Hunting

Major Periods

4:18 AM - 6:48 AM
4:41 PM - 7:11 PM

Minor Periods

11:42 AM - 1:12 PM
9:49 PM - 11:19 PM
Action Rating:
Very Good 4/5
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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