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

View Nearby Locations     View All California Locations     View Locations Near Me

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

46.9°F
Clear
Clear
45.1°F
47.1°F
87%
ENE 4.3 mph
8.9 mph
47.1°F
37.5°F
0 in
0%
9 mi
1020 mbar
0

Five Day Weather Forecast

Sunny
Thu
H: 65°F
L: 40°F
Partly Cloudy
Fri
H: 68°F
L: 42°F
Partly Cloudy
Sat
H: 62°F
L: 42°F
Sunny
Sun
H: 62°F
L: 51°F
Sunny
Mon
H: 63°F
L: 50°F

Air Quality

PM2.5: 23.25 μg/m3
PM10: 23.65 μg/m3
Carbon Monoxide: 371.85 μg/m3
Nitrogen Dioxide: 47.25 μg/m3
Sulphur Dioxide: 5.15 μg/m3
Ozone: 4 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:18 AM
Sunset: 5:14 PM
Daylight: 9 hrs 52 mins
Moonrise: 5:15 AM
Moon Transit: 9:47 AM
Moonset: 2:18 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

5:16 PM - 7:46 PM
9:17 AM - 11:47 AM

Minor Periods

1:48 PM - 3:18 PM
4:45 AM - 6:15 AM

Action Rating: 3 out of 5

Beach Hazards Statement issued January 14 at 8:43AM PST until January 15 at 9:00PM PST by NWS San Francisco CA

Effective: Wed January 14, 2026, 8:43 AM
Expires: Thu January 15, 2026, 4:00 AM

* WHAT...An increased risk for sneaker waves and strong rip currents with breaking waves of 7 to 12 feet. * WHERE...Pacific Coast beaches. * WHEN...From 10 AM PST this morning through 9 PM PST Thursday evening. * IMPACTS...Dangerous conditions are forecast along the shoreline. Hazards include sneaker waves, strong rip currents, and large breaking waves.

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.
Thursday, January 15, 2026

Weather Forecast

Sunny
65.3°F
40.3°F
51°F
77%
0 in
0%
0%
4.9 mph
0.5


Air Quality

AQI: 2 - Moderate
PM2.5: 26.32 μg/m3
PM10: 28.53 μg/m3
Carbon Monoxide: 449.41 μg/m3
Nitrogen Dioxide: 46.62 μg/m3
Sulphur Dioxide: 6.69 μg/m3
Ozone: 8.56 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:18 AM
Sunset: 5:14 PM
Daylight: 9 hrs 52 mins
Moonrise: 5:15 AM
Moon Transit: 9:47 AM
Moonset: 2:18 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

5:16 PM - 7:46 PM
9:17 AM - 11:47 AM

Minor Periods

1:48 PM - 3:18 PM
4:45 AM - 6:15 AM

Action Rating: 3 out of 5

Friday, January 16, 2026

Weather Forecast

Partly Cloudy
67.6°F
42.4°F
53.6°F
76%
0 in
0%
0%
4 mph
0.5


Air Quality

AQI: 2 - Moderate
PM2.5: 24.09 μg/m3
PM10: 26.35 μg/m3
Carbon Monoxide: 385.57 μg/m3
Nitrogen Dioxide: 45.15 μg/m3
Sulphur Dioxide: 6.18 μg/m3
Ozone: 9.12 μg/m3

Astronomical

Sunrise: 7:22 AM
Sun Transit: 12:18 AM
Sunset: 5:15 PM
Daylight: 9 hrs 53 mins
Moonrise: 6:09 AM
Moon Transit: 10:39 AM
Moonset: 3:12 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

6:08 PM - 8:38 PM
10:09 AM - 12:39 AM

Minor Periods

2:42 PM - 4:12 PM
5:39 AM - 7:09 AM

Action Rating: 3 out of 5

Saturday, January 17, 2026

Weather Forecast

Partly Cloudy
62.2°F
41.5°F
51.8°F
75%
0 in
0%
0%
4.3 mph
0.5


Air Quality

AQI: 2 - Moderate
PM2.5: 26.26 μg/m3
PM10: 27.98 μg/m3
Carbon Monoxide: 425.88 μg/m3
Nitrogen Dioxide: 44.35 μg/m3
Sulphur Dioxide: 6.59 μg/m3
Ozone: 8.64 μg/m3

Astronomical

Sunrise: 7:22 AM
Sun Transit: 12:19 AM
Sunset: 5:16 PM
Daylight: 9 hrs 55 mins
Moonrise: 6:56 AM
Moon Transit: 11:32 AM
Moonset: 4:13 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

7:01 PM - 9:31 PM
11:02 AM - 1:32 PM

Minor Periods

3:43 PM - 5:13 PM
6:26 AM - 7:56 AM

Action Rating: 4 out of 5

Sunday, January 18, 2026

Weather Forecast

Sunny
62.1°F
50.7°F
55.3°F
62%
0 in
0%
0%
4.9 mph
0.5


Air Quality

AQI: 2 - Moderate
PM2.5: 32.71 μg/m3
PM10: 34.93 μg/m3
Carbon Monoxide: 633.95 μg/m3
Nitrogen Dioxide: 50.08 μg/m3
Sulphur Dioxide: 7.31 μg/m3
Ozone: 3 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 12:19 AM
Sunset: 5:17 PM
Daylight: 9 hrs 56 mins
Moonrise: 7:36 AM
Moon Transit: 12:23 AM
Moonset: 5:16 PM
Moon Phase: New
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

7:51 PM - 10:21 PM
11:53 AM - 2:23 PM

Minor Periods

4:46 PM - 6:16 PM
7:06 AM - 8:36 AM

Action Rating: 4 out of 5

Monday, January 19, 2026

Weather Forecast

Sunny
62.5°F
50°F
54.1°F
61%
0 in
0%
0%
3.6 mph
0


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 12:19 AM
Sunset: 5:19 PM
Daylight: 9 hrs 58 mins
Moonrise: 8:10 AM
Moon Transit: 1:12 PM
Moonset: 6:22 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

8:40 PM - 11:10 PM
12:42 AM - 3:12 PM

Minor Periods

5:52 PM - 7:22 PM
7:40 AM - 9:10 AM

Action Rating: 4 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.

Webcams Near San Mateo, CA

Sponsored Content