Water Temperature of San Francisco Bay in San Mateo, CA

Current Water Temperature

57.2°F

Measurement Time: Wednesday, March 4, 2020, 11:45 PM PST

Temperature Locations

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Local Points of Interest

San Mateo-Hayward Bridge; Foster City, CA; Burlingame, CA; Hayward, CA

San Francisco Bay

Station Name: SAN FRANCISCO BAY 2.8 MI N OF SAN MATEO BRIDGE CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
San Francisco Bay
San Mateo, CA 94401
San Mateo County

GPS Coordinates: 37.63078889, -122.2432

Nearby Water Temperatures

Redwood Creek, Redwood City, CA (8.8 mi)
San Francisco Bay, Alameda, CA (10.2 mi)
San Francisco Bay, Menlo Park, CA (11 mi)
San Francisco Bay, San Francisco, CA (14.6 mi)
Coyote Creek, Alviso, CA (16.6 mi)
San Francisco Bay, San Francisco, CA (16.7 mi)
San Francisco Bay, San Francisco, CA (17.2 mi)
Rodeo Pond, Sausalito, CA (20.7 mi)
Rodeo Lagoon, Sausalito, CA (20.8 mi)
Rodeo Lagoon, Sausalito, CA (21 mi)
San Francisco Bay, Richmond, CA (22.3 mi)
Coyote Creek, San Jose, CA (22.5 mi)
San Francisco Bay, San Rafael, CA (23.8 mi)
Arroyo Valle, Livermore, CA (26.5 mi)
Arroyo Hondo, San Jose, CA (28.5 mi)

Weather for San Mateo, California

Current Weather

57.7°F
Partly cloudy
Partly cloudy
58°F
63.5°F
72%
NE 3.6 mph
5.8 mph
63.5°F
50.3°F
0 in
75%
9 mi
1019 mbar
0.3

Five Day Weather Forecast

Sunny
Tue
H: 65°F
L: 45°F
Overcast
Wed
H: 60°F
L: 46°F
Mist
Thu
H: 53°F
L: 50°F
Fog
Fri
H: 54°F
L: 48°F
Sunny
Sat
H: 61°F
L: 49°F

Air Quality

AQI: 2 - Moderate
PM2.5: 34.45 μg/m3
PM10: 35.55 μg/m3
Carbon Monoxide: 684.85 μg/m3
Nitrogen Dioxide: 48.45 μg/m3
Sulphur Dioxide: 6.65 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 12:20 AM
Sunset: 5:20 PM
Daylight: 9 hrs 59 mins
Moonrise: 8:40 AM
Moon Transit: 2:00 PM
Moonset: 7:28 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

9:26 PM - 11:56 PM
1:30 PM - 4:00 PM

Minor Periods

6:58 PM - 8:28 PM
8:10 AM - 9:40 AM

Action Rating: 3 out of 5

Tuesday, January 20, 2026

Weather Forecast

Sunny
64.8°F
45.1°F
52.4°F
69%
0 in
0%
0%
5.1 mph
0.4


Air Quality

AQI: 2 - Moderate
PM2.5: 24.58 μg/m3
PM10: 26.35 μg/m3
Carbon Monoxide: 497.01 μg/m3
Nitrogen Dioxide: 49.84 μg/m3
Sulphur Dioxide: 6.84 μg/m3
Ozone: 8.88 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 12:20 AM
Sunset: 5:20 PM
Daylight: 9 hrs 59 mins
Moonrise: 8:40 AM
Moon Transit: 2:00 PM
Moonset: 7:28 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

9:26 PM - 11:56 PM
1:30 PM - 4:00 PM

Minor Periods

6:58 PM - 8:28 PM
8:10 AM - 9:40 AM

Action Rating: 3 out of 5

Wednesday, January 21, 2026

Weather Forecast

Overcast
59.5°F
45.7°F
51.7°F
88%
0 in
0%
0%
3.4 mph
0.4


Air Quality

AQI: 2 - Moderate
PM2.5: 30.29 μg/m3
PM10: 31.8 μg/m3
Carbon Monoxide: 598.85 μg/m3
Nitrogen Dioxide: 48.78 μg/m3
Sulphur Dioxide: 7.5 μg/m3
Ozone: 4.44 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 12:20 AM
Sunset: 5:21 PM
Daylight: 10 hrs 1 mins
Moonrise: 9:06 AM
Moon Transit: 2:44 PM
Moonset: 8:33 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:14 PM - 4:44 PM

Minor Periods

8:03 PM - 9:33 PM
8:36 AM - 10:06 AM

Action Rating: 2 out of 5

Thursday, January 22, 2026

Weather Forecast

Mist
53.1°F
50.4°F
51.9°F
97%
0 in
0%
0%
5.6 mph
0.4


Air Quality

AQI: 2 - Moderate
PM2.5: 31.22 μg/m3
PM10: 33.89 μg/m3
Carbon Monoxide: 467.81 μg/m3
Nitrogen Dioxide: 46.35 μg/m3
Sulphur Dioxide: 7.91 μg/m3
Ozone: 10.2 μg/m3

Astronomical

Sunrise: 7:19 AM
Sun Transit: 12:20 AM
Sunset: 5:22 PM
Daylight: 10 hrs 2 mins
Moonrise: 9:30 AM
Moon Transit: 12:00 AM
Moonset: 9:38 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.4%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

9:08 PM - 10:38 PM
9:00 AM - 10:30 AM

Action Rating: 2 out of 5

Friday, January 23, 2026

Weather Forecast

Fog
53.7°F
48.4°F
50°F
92%
0 in
0%
0%
4.3 mph
0.5


Air Quality

AQI: 2 - Moderate
PM2.5: 21.19 μg/m3
PM10: 25.96 μg/m3
Carbon Monoxide: 288.91 μg/m3
Nitrogen Dioxide: 24.75 μg/m3
Sulphur Dioxide: 6.58 μg/m3
Ozone: 47.6 μg/m3

Astronomical

Sunrise: 7:19 AM
Sun Transit: 12:20 AM
Sunset: 5:23 PM
Daylight: 10 hrs 4 mins
Moonrise: 9:54 AM
Moon Transit: 6:54 AM
Moonset: 10:45 PM
Moon Phase: Waxing Crescent
Moon Illumination: 24.4%

Best Times for Fishing or Hunting

Major Periods

6:24 AM - 8:54 AM
6:24 AM - 8:54 AM

Minor Periods

10:15 PM - 11:45 PM
9:24 AM - 10:54 AM

Action Rating: 2 out of 5

Saturday, January 24, 2026

Weather Forecast

Sunny
60.5°F
49.3°F
53.9°F
65%
0 in
0%
0%
4.3 mph
0.6


Air Quality

AQI: 2 - Moderate
PM2.5: 19.9 μg/m3
PM10: 23.77 μg/m3
Carbon Monoxide: 320.23 μg/m3
Nitrogen Dioxide: 30.2 μg/m3
Sulphur Dioxide: 5.98 μg/m3
Ozone: 44.54 μg/m3

Astronomical

Sunrise: 7:18 AM
Sun Transit: 12:21 AM
Sunset: 5:24 PM
Daylight: 10 hrs 6 mins
Moonrise: 10:20 AM
Moon Transit: 5:00 PM
Moonset: 11:54 PM
Moon Phase: First Quarter
Moon Illumination: 34.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:30 PM - 7:00 PM

Minor Periods

12:00 AM - 12:00 AM
9:50 AM - 11:20 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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