Water Temperature of San Francisco Bay in San Rafael, CA

Current Water Temperature

55.2°F

Measurement Time: Wednesday, February 18, 2026, 6:00 PM PST

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

46.9°F
Light rain
Light rain
40.5°F
44.5°F
100%
SE 15.9 mph
19.9 mph
39.8°F
41.8°F
0.11 in
100%
2 mi
1008 mbar
0

Five Day Weather Forecast

Moderate rain
Thu
H: 54°F
L: 42°F
Overcast
Fri
H: 42°F
L: 37°F
Partly Cloudy
Sat
H: 54°F
L: 41°F
Heavy rain
Sun
H: 57°F
L: 52°F
Patchy rain nearby
Mon
H: 56°F
L: 52°F

Air Quality

AQI: 1 - Good
PM2.5: 4.35 μg/m3
PM10: 15.45 μg/m3
Carbon Monoxide: 147.85 μg/m3
Nitrogen Dioxide: 2.55 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 87 μg/m3

Astronomical

Sunrise: 6:55 AM
Sun Transit: 12:23 AM
Sunset: 5:53 PM
Daylight: 10 hrs 58 mins
Moonrise: 7:59 AM
Moon Transit: 1:07 PM
Moonset: 8:37 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

12:37 AM - 3:07 PM
12:37 AM - 3:07 PM

Minor Periods

8:07 PM - 9:37 PM
7:29 AM - 8:59 AM

Action Rating: 2 out of 5

High Surf Advisory issued February 18 at 2:21PM PST until February 20 at 9:00AM PST by NWS San Francisco CA

Effective: Wed February 18, 2026, 2:21 PM
Expires: Thu February 19, 2026, 9:00 AM

* WHAT...Large breaking waves of 18 to 22 feet, with continuing increased risk of sneaker waves and strong rip currents. * WHERE...Pacific Coast beaches. * WHEN...Until 9 AM PST Friday. * 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. Large breaking waves can overpower swimmers resulting in significant physical injury and increase the risk of drowning.

Swimmers should remain out of the water due to dangerous surf conditions. 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.


Wind Advisory issued February 18 at 11:45AM PST until February 19 at 10:00PM PST by NWS Sacramento CA

Effective: Wed February 18, 2026, 11:45 AM
Expires: Thu February 19, 2026, 4:00 PM

* WHAT...South winds 10 to 20 mph with gusts of 35 to 45 mph expected. * WHERE...Central Sacramento Valley, Northern Sacramento Valley, and Southern Sacramento Valley. * WHEN...Until 10 PM PST Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Another round of gusty winds arrives late today and continues into Thursday.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.


Thursday, February 19, 2026

Weather Forecast

Moderate rain
53.6°F
42.3°F
46.5°F
78%
0.52 in
83%
0%
24.4 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 4.93 μg/m3
PM10: 9.12 μg/m3
Carbon Monoxide: 166.57 μg/m3
Nitrogen Dioxide: 6.5 μg/m3
Sulphur Dioxide: 2.99 μg/m3
Ozone: 80.16 μg/m3

Astronomical

Sunrise: 6:55 AM
Sun Transit: 12:23 AM
Sunset: 5:53 PM
Daylight: 10 hrs 58 mins
Moonrise: 7:59 AM
Moon Transit: 1:07 PM
Moonset: 8:37 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

12:37 AM - 3:07 PM
12:37 AM - 3:07 PM

Minor Periods

8:07 PM - 9:37 PM
7:29 AM - 8:59 AM

Action Rating: 2 out of 5

Friday, February 20, 2026

Weather Forecast

Overcast
42.1°F
37.2°F
40.4°F
88%
0 in
0%
0%
9.4 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 4.62 μg/m3
PM10: 8.32 μg/m3
Carbon Monoxide: 176.21 μg/m3
Nitrogen Dioxide: 7.69 μg/m3
Sulphur Dioxide: 4.04 μg/m3
Ozone: 68.88 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 12:23 AM
Sunset: 5:54 PM
Daylight: 11 hrs 1 mins
Moonrise: 8:24 AM
Moon Transit: 12:00 AM
Moonset: 9:46 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

9:16 PM - 10:46 PM
7:54 AM - 9:24 AM

Action Rating: 2 out of 5

Saturday, February 21, 2026

Weather Forecast

Partly Cloudy
53.8°F
41°F
47.1°F
85%
0 in
0%
0%
19.7 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 13.98 μg/m3
PM10: 16.69 μg/m3
Carbon Monoxide: 285.97 μg/m3
Nitrogen Dioxide: 31.54 μg/m3
Sulphur Dioxide: 5.71 μg/m3
Ozone: 38.92 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 12:23 AM
Sunset: 5:55 PM
Daylight: 11 hrs 3 mins
Moonrise: 8:51 AM
Moon Transit: 3:48 PM
Moonset: 10:58 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:18 PM - 5:48 PM

Minor Periods

10:28 PM - 11:58 PM
8:21 AM - 9:51 AM

Action Rating: 3 out of 5

Sunday, February 22, 2026

Weather Forecast

Heavy rain
56.7°F
52.1°F
55.3°F
83%
1.17 in
89%
0%
34.9 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 8.64 μg/m3
PM10: 14.87 μg/m3
Carbon Monoxide: 159.55 μg/m3
Nitrogen Dioxide: 11.75 μg/m3
Sulphur Dioxide: 3.05 μg/m3
Ozone: 74.48 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 12:23 AM
Sunset: 5:56 PM
Daylight: 11 hrs 5 mins
Moonrise: 9:22 AM
Moon Transit: 4:41 PM
Moonset: 12:12 PM
Moon Phase: Waxing Crescent
Moon Illumination: 29.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:11 PM - 6:41 PM

Minor Periods

12:00 AM - 12:00 AM
8:52 AM - 10:22 AM

Action Rating: 2 out of 5

Monday, February 23, 2026

Weather Forecast

Patchy rain nearby
55.7°F
52.4°F
54.3°F
83%
0.11 in
72%
0%
22.8 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 12.06 μg/m3
PM10: 14.9 μg/m3
Carbon Monoxide: 232.23 μg/m3
Nitrogen Dioxide: 28.24 μg/m3
Sulphur Dioxide: 3.77 μg/m3
Ozone: 48.15 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 12:23 AM
Sunset: 5:57 PM
Daylight: 11 hrs 8 mins
Moonrise: 10:00 AM
Moon Transit: 5:38 PM
Moonset: 12:12 AM
Moon Phase: First Quarter
Moon Illumination: 39.8%

Best Times for Fishing or Hunting

Major Periods

12:09 AM - 2:39 AM
5:08 PM - 7:38 PM

Minor Periods

9:30 AM - 11:00 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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