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

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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 / 0 meters

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 (11.0 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 (21.0 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

71.1°F
Sunny
Conditions: Sunny
Humidity: 53%
Feels Like: 71.1°F
Wind: WNW 9.4 mph
Wind Gusts: 12.6 mph
Pressure: 29.91 in
Precipitation: 0 in
Cloud Cover: 25%
Visibility: 9 mi
UV Index: 3.5

Five Day Weather Forecast

Cloudy
Thu
H: 73°F
L: 55°F
Partly Cloudy
Fri
H: 76°F
L: 55°F
Partly Cloudy
Sat
H: 76°F
L: 55°F
Partly Cloudy
Sun
H: 72°F
L: 55°F
Sunny
Mon
H: 72°F
L: 54°F

Air Quality

AQI: 2 - Moderate
PM2.5: 23.31 μg/m3
PM10: 31.82 μg/m3
Carbon Monoxide: 268.25 μg/m3
Nitrogen Dioxide: 16.47 μg/m3
Sulphur Dioxide: 3.15 μg/m3
Ozone: 33 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 1:14 PM
Sunset: 8:32 PM
Daylight: 14 hrs 36 mins
Moonrise: 9:01 PM
Moon Transit: 12:49 AM
Moonset: 5:25 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:19 AM - 2:49 AM
8:18 AM - 10:48 AM

Minor Periods

8:31 PM - 10:01 PM
4:55 AM - 6:25 AM

Action Rating: 5 out of 5

Thursday, July 10, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 62.1°F
Average Humidity: 78%
Chance of Rain: 0%
Wind: 9.6 mph
UV Index: 2.7

Air Quality

AQI: 2 - Moderate
PM2.5: 19.96 μg/m3
PM10: 25.83 μg/m3
Carbon Monoxide: 240.72 μg/m3
Nitrogen Dioxide: 11.02 μg/m3
Sulphur Dioxide: 2.97 μg/m3
Ozone: 36.6 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 1:14 PM
Sunset: 8:32 PM
Daylight: 14 hrs 36 mins
Moonrise: 9:01 PM
Moon Transit: 12:49 AM
Moonset: 5:25 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:19 AM - 2:49 AM
8:18 AM - 10:48 AM

Minor Periods

8:31 PM - 10:01 PM
4:55 AM - 6:25 AM

Action Rating: 5 out of 5

Friday, July 11, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 63.1°F
Average Humidity: 76%
Chance of Rain: 0%
Wind: 8.1 mph
UV Index: 2.8

Air Quality

AQI: 2 - Moderate
PM2.5: 25.17 μg/m3
PM10: 34.03 μg/m3
Carbon Monoxide: 235.54 μg/m3
Nitrogen Dioxide: 13.97 μg/m3
Sulphur Dioxide: 4.1 μg/m3
Ozone: 36.28 μg/m3

Astronomical

Sunrise: 5:57 AM
Sun Transit: 1:14 PM
Sunset: 8:32 PM
Daylight: 14 hrs 35 mins
Moonrise: 9:39 PM
Moon Transit: 1:43 AM
Moonset: 6:31 AM
Moon Phase: Full
Moon Illumination: 97.4%

Best Times for Fishing or Hunting

Major Periods

1:13 AM - 3:43 AM
9:12 AM - 11:42 AM

Minor Periods

9:09 PM - 10:39 PM
6:01 AM - 7:31 AM

Action Rating: 4 out of 5

Saturday, July 12, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 63.4°F
Average Humidity: 73%
Chance of Rain: 0%
Wind: 8.1 mph
UV Index: 2.9

Air Quality

AQI: 2 - Moderate
PM2.5: 21.22 μg/m3
PM10: 27.81 μg/m3
Carbon Monoxide: 220.96 μg/m3
Nitrogen Dioxide: 11.37 μg/m3
Sulphur Dioxide: 3.26 μg/m3
Ozone: 49.6 μg/m3

Astronomical

Sunrise: 5:58 AM
Sun Transit: 1:14 PM
Sunset: 8:32 PM
Daylight: 14 hrs 34 mins
Moonrise: 10:12 PM
Moon Transit: 2:35 AM
Moonset: 7:39 AM
Moon Phase: Full
Moon Illumination: 92.7%

Best Times for Fishing or Hunting

Major Periods

2:05 AM - 4:35 AM
10:03 AM - 12:33 AM

Minor Periods

9:42 PM - 11:12 PM
7:09 AM - 8:39 AM

Action Rating: 3 out of 5

Sunday, July 13, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 61.7°F
Average Humidity: 75%
Chance of Rain: 0%
Wind: 8.1 mph
UV Index: 2.9

Air Quality

AQI: 2 - Moderate
PM2.5: 22.67 μg/m3
PM10: 30.11 μg/m3
Carbon Monoxide: 216.45 μg/m3
Nitrogen Dioxide: 10.03 μg/m3
Sulphur Dioxide: 3.49 μg/m3
Ozone: 61.6 μg/m3

Astronomical

Sunrise: 5:58 AM
Sun Transit: 1:14 PM
Sunset: 8:31 PM
Daylight: 14 hrs 33 mins
Moonrise: 10:40 PM
Moon Transit: 3:25 AM
Moonset: 8:48 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.7%

Best Times for Fishing or Hunting

Major Periods

2:55 AM - 5:25 AM
10:53 AM - 1:23 PM

Minor Periods

10:10 PM - 11:40 PM
8:18 AM - 9:48 AM

Action Rating: 2 out of 5

Monday, July 14, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 61.8°F
Average Humidity: 76%
Chance of Rain: 0%
Wind: 8.7 mph
UV Index: 2.8

Air Quality

AQI: 2 - Moderate
PM2.5: 20.83 μg/m3
PM10: 26.48 μg/m3
Carbon Monoxide: 213.18 μg/m3
Nitrogen Dioxide: 12.69 μg/m3
Sulphur Dioxide: 2.7 μg/m3
Ozone: 57.08 μg/m3

Astronomical

Sunrise: 5:59 AM
Sun Transit: 1:14 PM
Sunset: 8:31 PM
Daylight: 14 hrs 32 mins
Moonrise: 11:06 PM
Moon Transit: 4:13 AM
Moonset: 9:56 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.9%

Best Times for Fishing or Hunting

Major Periods

3:43 AM - 6:13 AM
11:40 AM - 2:10 PM

Minor Periods

12:00 AM - 12:00 AM
9:26 AM - 10:56 AM

Action Rating: 3 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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