Water Temperature of San Francisco Bay in Menlo Park, CA

Current Water Temperature

54.7°F

Measurement Time: Saturday, January 24, 2026, 6:45 AM PST

Temperature Locations

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Local Points of Interest

Don Edwards San Francisco Bay National Wildlife Refuge; Bedwell Bayfront Park; Dumbarton Bridge; Newark, CA; East Palo Alto, CA

San Francisco Bay

Station Name: SOUTH SAN FRANCISCO BAY AT DUMBARTON BRIDGE CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
Dumbarton Bridge
Menlo Park, CA
San Mateo County

GPS Coordinates: 37.5041043, -122.1205192

Nearby Water Temperatures

Redwood Creek, Redwood City, CA (4.9 mi)
Coyote Creek, Alviso, CA (6 mi)
San Francisco Bay, San Mateo, CA (11 mi)
Coyote Creek, San Jose, CA (12 mi)
Arroyo Hondo, San Jose, CA (19.5 mi)
San Francisco Bay, Alameda, CA (20.9 mi)
Arroyo Valle, Livermore, CA (21.5 mi)
San Francisco Bay, San Francisco, CA (25.6 mi)
San Francisco Bay, San Francisco, CA (27.7 mi)
San Francisco Bay, San Francisco, CA (28.2 mi)
Coyote Creek, Coyote, CA (28.7 mi)
Rodeo Pond, Sausalito, CA (31.7 mi)
Rodeo Lagoon, Sausalito, CA (31.7 mi)
Rodeo Lagoon, Sausalito, CA (31.9 mi)
San Francisco Bay, Richmond, CA (33 mi)

Weather for Menlo Park, California

Current Weather

63.1°F
Sunny
Sunny
63.1°F
63.7°F
34%
NNE 6.9 mph
8.2 mph
63.7°F
43°F
0 in
0%
9 mi
1014 mbar
1

Five Day Weather Forecast

Sunny
Sat
H: 65°F
L: 46°F
Overcast
Sun
H: 61°F
L: 41°F
Partly Cloudy
Mon
H: 67°F
L: 42°F
Mist
Tue
H: 58°F
L: 38°F
Sunny
Wed
H: 62°F
L: 49°F

Air Quality

AQI: 1 - Good
PM2.5: 15.05 μg/m3
PM10: 25.95 μg/m3
Carbon Monoxide: 523.85 μg/m3
Nitrogen Dioxide: 54.45 μg/m3
Sulphur Dioxide: 4.45 μg/m3
Ozone: 9 μg/m3

Astronomical

Sunrise: 7:17 AM
Sun Transit: 12:20 AM
Sunset: 5:24 PM
Daylight: 10 hrs 6 mins
Moonrise: 10:19 AM
Moon Transit: 5:00 PM
Moonset: 11:53 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
9:49 AM - 11:19 AM

Action Rating: 2 out of 5

Saturday, January 24, 2026

Weather Forecast

Sunny
64.6°F
45.5°F
53.3°F
66%
0 in
0%
0%
7.6 mph
0.6


Air Quality

AQI: 2 - Moderate
PM2.5: 24.86 μg/m3
PM10: 30.61 μg/m3
Carbon Monoxide: 374.77 μg/m3
Nitrogen Dioxide: 41.21 μg/m3
Sulphur Dioxide: 8.65 μg/m3
Ozone: 27.76 μg/m3

Astronomical

Sunrise: 7:17 AM
Sun Transit: 12:20 AM
Sunset: 5:24 PM
Daylight: 10 hrs 6 mins
Moonrise: 10:19 AM
Moon Transit: 5:00 PM
Moonset: 11:53 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
9:49 AM - 11:19 AM

Action Rating: 2 out of 5

Sunday, January 25, 2026

Weather Forecast

Overcast
60.8°F
41°F
50.3°F
64%
0 in
0%
0%
2.7 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 13.09 μg/m3
PM10: 19.75 μg/m3
Carbon Monoxide: 365.21 μg/m3
Nitrogen Dioxide: 39.49 μg/m3
Sulphur Dioxide: 4.29 μg/m3
Ozone: 23.08 μg/m3

Astronomical

Sunrise: 7:17 AM
Sun Transit: 12:20 AM
Sunset: 5:25 PM
Daylight: 10 hrs 8 mins
Moonrise: 10:47 AM
Moon Transit: 5:49 PM
Moonset: 12:53 AM
Moon Phase: First Quarter
Moon Illumination: 45.8%

Best Times for Fishing or Hunting

Major Periods

12:28 AM - 2:58 AM
5:19 PM - 7:49 PM

Minor Periods

10:17 AM - 11:47 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, January 26, 2026

Weather Forecast

Partly Cloudy
67.3°F
41.5°F
53.3°F
74%
0 in
0%
0%
4.5 mph
0


Air Quality

AQI: 2 - Moderate
PM2.5: 21.02 μg/m3
PM10: 22.63 μg/m3
Carbon Monoxide: 445.05 μg/m3
Nitrogen Dioxide: 34.57 μg/m3
Sulphur Dioxide: 5.52 μg/m3
Ozone: 23 μg/m3

Astronomical

Sunrise: 7:16 AM
Sun Transit: 12:21 AM
Sunset: 5:26 PM
Daylight: 10 hrs 10 mins
Moonrise: 11:20 AM
Moon Transit: 6:43 PM
Moonset: 1:04 AM
Moon Phase: First Quarter
Moon Illumination: 57.1%

Best Times for Fishing or Hunting

Major Periods

1:19 AM - 3:49 AM
6:13 PM - 8:43 PM

Minor Periods

10:50 AM - 12:20 AM
12:34 AM - 2:04 AM

Action Rating: 2 out of 5

Tuesday, January 27, 2026

Weather Forecast

Mist
58.3°F
38.1°F
47.3°F
83%
0 in
0%
0%
7.4 mph
2


Air Quality

AQI: 2 - Moderate
PM2.5: 24.44 μg/m3
PM10: 25.75 μg/m3
Carbon Monoxide: 419.88 μg/m3
Nitrogen Dioxide: 39.93 μg/m3
Sulphur Dioxide: 6.49 μg/m3
Ozone: 30.76 μg/m3

Astronomical

Sunrise: 7:15 AM
Sun Transit: 12:21 AM
Sunset: 5:27 PM
Daylight: 10 hrs 12 mins
Moonrise: 12:01 AM
Moon Transit: 7:42 PM
Moonset: 2:19 AM
Moon Phase: First Quarter
Moon Illumination: 68.0%

Best Times for Fishing or Hunting

Major Periods

2:15 AM - 4:45 AM
7:12 PM - 9:42 PM

Minor Periods

11:31 AM - 1:01 PM
1:49 AM - 3:19 AM

Action Rating: 2 out of 5

Wednesday, January 28, 2026

Weather Forecast

Sunny
62°F
48.5°F
54°F
73%
0 in
0%
0%
6.7 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 12.76 μg/m3
PM10: 15.84 μg/m3
Carbon Monoxide: 312.83 μg/m3
Nitrogen Dioxide: 30.8 μg/m3
Sulphur Dioxide: 4.3 μg/m3
Ozone: 45.92 μg/m3

Astronomical

Sunrise: 7:15 AM
Sun Transit: 12:21 AM
Sunset: 5:28 PM
Daylight: 10 hrs 13 mins
Moonrise: 12:52 AM
Moon Transit: 8:45 PM
Moonset: 3:33 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 78.1%

Best Times for Fishing or Hunting

Major Periods

3:15 AM - 5:45 AM
8:15 PM - 10:45 PM

Minor Periods

12:22 AM - 1:52 PM
3:03 AM - 4:33 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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