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

57.6°F
Clear
Clear
58°F
56.6°F
72%
WSW 3.4 mph
4.8 mph
56.1°F
49.5°F
0 in
0%
9 mi
1010 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 73°F
L: 48°F
Moderate rain
Thu
H: 66°F
L: 52°F
Patchy rain nearby
Fri
H: 61°F
L: 52°F
Sunny
Sat
H: 62°F
L: 50°F
Sunny
Sun
H: 68°F
L: 48°F

Air Quality

AQI: 1 - Good
PM2.5: 9.95 μg/m3
PM10: 14.15 μg/m3
Carbon Monoxide: 110.85 μg/m3
Nitrogen Dioxide: 10.95 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 62 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:06 PM
Sunset: 8:22 PM
Daylight: 14 hrs 31 mins
Moonrise: 5:20 PM
Moon Transit: 10:40 PM
Moonset: 3:28 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.7%

Best Times for Fishing or Hunting

Major Periods

5:23 AM - 7:53 AM
12:00 AM - 12:00 AM

Minor Periods

4:50 PM - 6:20 PM
2:58 AM - 4:28 AM

Action Rating: 3 out of 5

Special Weather Statement issued May 27 at 5:20PM PDT by NWS San Francisco CA

Effective: Wed May 27, 2026, 5:20 PM
Expires: Wed May 27, 2026, 5:45 PM

At 520 PM PDT, Doppler radar was tracking a strong thunderstorm near Los Gatos, moving southeast at 10 mph. HAZARD...Wind gusts up to 40 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... San Jose, Santa Clara, Cupertino, Campbell, Saratoga, Los Gatos, Fruitdale, Buena Vista, Sunol-Midtown, Seven Trees, Rancho Rinconada Cdp, Monte Sereno, Cambrian Park and Rancho Rinconada.

Monitor the weather situation closely and be alert for threatening weather conditions.
Wednesday, May 27, 2026

Weather Forecast

Sunny
72.5°F
48°F
59.2°F
73%
0 in
0%
0%
12.8 mph
6.4


Air Quality

AQI: 1 - Good
PM2.5: 8.62 μg/m3
PM10: 13.2 μg/m3
Carbon Monoxide: 118.37 μg/m3
Nitrogen Dioxide: 6.4 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 58.16 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:06 PM
Sunset: 8:22 PM
Daylight: 14 hrs 31 mins
Moonrise: 5:20 PM
Moon Transit: 10:40 PM
Moonset: 3:28 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.7%

Best Times for Fishing or Hunting

Major Periods

5:23 AM - 7:53 AM
12:00 AM - 12:00 AM

Minor Periods

4:50 PM - 6:20 PM
2:58 AM - 4:28 AM

Action Rating: 3 out of 5

Thursday, May 28, 2026

Weather Forecast

Moderate rain
66.1°F
52.2°F
57.1°F
77%
0.2 in
88%
0%
12.5 mph
6.6


Air Quality

AQI: 1 - Good
PM2.5: 10.65 μg/m3
PM10: 15.7 μg/m3
Carbon Monoxide: 118.97 μg/m3
Nitrogen Dioxide: 8.05 μg/m3
Sulphur Dioxide: 1.81 μg/m3
Ozone: 71.32 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:06 PM
Sunset: 8:23 PM
Daylight: 14 hrs 32 mins
Moonrise: 6:22 PM
Moon Transit: 11:25 PM
Moonset: 3:53 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.7%

Best Times for Fishing or Hunting

Major Periods

6:06 AM - 8:36 AM
12:00 AM - 12:00 AM

Minor Periods

5:52 PM - 7:22 PM
3:23 AM - 4:53 AM

Action Rating: 3 out of 5

Friday, May 29, 2026

Weather Forecast

Patchy rain nearby
61.4°F
52°F
56.2°F
82%
0.01 in
89%
0%
8.3 mph
7.1


Air Quality

AQI: 1 - Good
PM2.5: 9.45 μg/m3
PM10: 13.92 μg/m3
Carbon Monoxide: 109.92 μg/m3
Nitrogen Dioxide: 5.27 μg/m3
Sulphur Dioxide: 2.02 μg/m3
Ozone: 76.12 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:06 PM
Sunset: 8:23 PM
Daylight: 14 hrs 33 mins
Moonrise: 7:23 PM
Moon Transit: 12:00 AM
Moonset: 4:23 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
6:52 AM - 9:22 AM

Minor Periods

6:53 PM - 8:23 PM
3:53 AM - 5:23 AM

Action Rating: 4 out of 5

Saturday, May 30, 2026

Weather Forecast

Sunny
61.9°F
50.1°F
55.8°F
77%
0 in
0%
0%
11.6 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 11.66 μg/m3
PM10: 17.72 μg/m3
Carbon Monoxide: 121.75 μg/m3
Nitrogen Dioxide: 5.3 μg/m3
Sulphur Dioxide: 1.6 μg/m3
Ozone: 70.6 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:06 PM
Sunset: 8:24 PM
Daylight: 14 hrs 34 mins
Moonrise: 8:24 PM
Moon Transit: 12:12 AM
Moonset: 4:57 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:40 AM - 10:10 AM

Minor Periods

7:54 PM - 9:24 PM
4:27 AM - 5:57 AM

Action Rating: 4 out of 5

Sunday, May 31, 2026

Weather Forecast

Sunny
68.1°F
48.4°F
57.1°F
73%
0 in
0%
0%
10.7 mph
8.3


Air Quality

AQI: 1 - Good
PM2.5: 12.58 μg/m3
PM10: 19.5 μg/m3
Carbon Monoxide: 129.77 μg/m3
Nitrogen Dioxide: 8.36 μg/m3
Sulphur Dioxide: 1.49 μg/m3
Ozone: 67.23 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:06 PM
Sunset: 8:25 PM
Daylight: 14 hrs 35 mins
Moonrise: 9:20 PM
Moon Transit: 1:01 AM
Moonset: 5:37 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:31 AM - 3:01 AM
8:30 AM - 11:00 AM

Minor Periods

8:50 PM - 10:20 PM
5:07 AM - 6:37 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.

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