Water Temperature of San Francisco Bay in Menlo Park, CA

Current Water Temperature

72.0°F

Measurement Time: Sunday, October 4, 2026, 9:45 PM PDT

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

66°F
Sunny
Sunny
76%
WNW 2 mph
58°F

Weather Forecast

Sunny
Today
72°F - Sunny
Mostly Clear
Tonight
63°F - Mostly Clear
Sunny
Tuesday
74°F - Sunny
Clear
Tuesday Night
64°F - Clear
Sunny
Wednesday
72°F - Sunny
Mostly Clear
Wednesday Night
61°F - Mostly Clear
Sunny
Thursday
72°F - Sunny
Mostly Clear
Thursday Night
60°F - Mostly Clear
Sunny
Friday
73°F - Sunny
Mostly Clear
Friday Night
60°F - Mostly Clear
Sunny
Saturday
68°F - Sunny
Mostly Clear
Saturday Night
57°F - Mostly Clear
Sunny
Sunday
65°F - Sunny
Mostly Clear
Sunday Night
56°F - Mostly Clear

Astronomical

Sunrise: 7:08 AM
Sun Transit: 12:56 AM
Sunset: 6:46 PM
Daylight: 11 hrs 38 mins
Moonrise: 1:39 AM
Moon Transit: 9:02 AM
Moonset: 4:15 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:32 AM - 11:02 AM
4:32 PM - 7:02 PM

Minor Periods

3:45 PM - 5:15 PM
1:09 AM - 2:39 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:08 AM
Sun Transit: 12:56 AM
Sunset: 6:46 PM
Daylight: 11 hrs 38 mins
Moonrise: 1:39 AM
Moon Transit: 9:02 AM
Moonset: 4:15 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:32 AM - 11:02 AM
4:32 PM - 7:02 PM

Minor Periods

3:45 PM - 5:15 PM
1:09 AM - 2:39 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:08 AM
Sun Transit: 12:56 AM
Sunset: 6:46 PM
Daylight: 11 hrs 38 mins
Moonrise: 1:39 AM
Moon Transit: 9:02 AM
Moonset: 4:15 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:32 AM - 11:02 AM
4:32 PM - 7:02 PM

Minor Periods

3:45 PM - 5:15 PM
1:09 AM - 2:39 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:08 AM
Sun Transit: 12:56 AM
Sunset: 6:44 PM
Daylight: 11 hrs 36 mins
Moonrise: 2:51 AM
Moon Transit: 9:53 AM
Moonset: 4:45 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.1%

Best Times for Fishing or Hunting

Major Periods

5:22 PM - 7:52 PM
9:23 AM - 11:53 AM

Minor Periods

4:15 PM - 5:45 PM
2:21 AM - 3:51 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:08 AM
Sun Transit: 12:56 AM
Sunset: 6:44 PM
Daylight: 11 hrs 36 mins
Moonrise: 2:51 AM
Moon Transit: 9:53 AM
Moonset: 4:45 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.1%

Best Times for Fishing or Hunting

Major Periods

5:22 PM - 7:52 PM
9:23 AM - 11:53 AM

Minor Periods

4:15 PM - 5:45 PM
2:21 AM - 3:51 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:09 AM
Sun Transit: 12:56 AM
Sunset: 6:43 PM
Daylight: 11 hrs 33 mins
Moonrise: 4:01 AM
Moon Transit: 10:41 AM
Moonset: 5:12 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.2%

Best Times for Fishing or Hunting

Major Periods

6:09 PM - 8:39 PM
10:11 AM - 12:41 AM

Minor Periods

4:42 PM - 6:12 PM
3:31 AM - 5:01 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:09 AM
Sun Transit: 12:56 AM
Sunset: 6:43 PM
Daylight: 11 hrs 33 mins
Moonrise: 4:01 AM
Moon Transit: 10:41 AM
Moonset: 5:12 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.2%

Best Times for Fishing or Hunting

Major Periods

6:09 PM - 8:39 PM
10:11 AM - 12:41 AM

Minor Periods

4:42 PM - 6:12 PM
3:31 AM - 5:01 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:10 AM
Sun Transit: 12:55 AM
Sunset: 6:41 PM
Daylight: 11 hrs 31 mins
Moonrise: 5:08 AM
Moon Transit: 11:27 AM
Moonset: 5:36 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

6:55 PM - 9:25 PM
10:57 AM - 1:27 PM

Minor Periods

5:06 PM - 6:36 PM
4:38 AM - 6:08 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:10 AM
Sun Transit: 12:55 AM
Sunset: 6:41 PM
Daylight: 11 hrs 31 mins
Moonrise: 5:08 AM
Moon Transit: 11:27 AM
Moonset: 5:36 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

6:55 PM - 9:25 PM
10:57 AM - 1:27 PM

Minor Periods

5:06 PM - 6:36 PM
4:38 AM - 6:08 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:11 AM
Sun Transit: 12:55 AM
Sunset: 6:40 PM
Daylight: 11 hrs 29 mins
Moonrise: 6:14 AM
Moon Transit: 12:12 AM
Moonset: 6:01 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

7:39 PM - 10:09 PM
11:42 AM - 2:12 PM

Minor Periods

5:31 PM - 7:01 PM
5:44 AM - 7:14 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:11 AM
Sun Transit: 12:55 AM
Sunset: 6:40 PM
Daylight: 11 hrs 29 mins
Moonrise: 6:14 AM
Moon Transit: 12:12 AM
Moonset: 6:01 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

7:39 PM - 10:09 PM
11:42 AM - 2:12 PM

Minor Periods

5:31 PM - 7:01 PM
5:44 AM - 7:14 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:12 AM
Sun Transit: 12:55 AM
Sunset: 6:38 PM
Daylight: 11 hrs 26 mins
Moonrise: 7:18 AM
Moon Transit: 12:56 AM
Moonset: 6:27 PM
Moon Phase: New
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

8:24 PM - 10:54 PM
12:26 AM - 2:56 PM

Minor Periods

5:57 PM - 7:27 PM
6:48 AM - 8:18 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:12 AM
Sun Transit: 12:55 AM
Sunset: 6:38 PM
Daylight: 11 hrs 26 mins
Moonrise: 7:18 AM
Moon Transit: 12:56 AM
Moonset: 6:27 PM
Moon Phase: New
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

8:24 PM - 10:54 PM
12:26 AM - 2:56 PM

Minor Periods

5:57 PM - 7:27 PM
6:48 AM - 8:18 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:13 AM
Sun Transit: 12:55 AM
Sunset: 6:37 PM
Daylight: 11 hrs 24 mins
Moonrise: 8:23 AM
Moon Transit: 1:42 PM
Moonset: 6:55 PM
Moon Phase: New
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

9:10 PM - 11:40 PM
1:12 PM - 3:42 PM

Minor Periods

6:25 PM - 7:55 PM
7:53 AM - 9:23 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:13 AM
Sun Transit: 12:55 AM
Sunset: 6:37 PM
Daylight: 11 hrs 24 mins
Moonrise: 8:23 AM
Moon Transit: 1:42 PM
Moonset: 6:55 PM
Moon Phase: New
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

9:10 PM - 11:40 PM
1:12 PM - 3:42 PM

Minor Periods

6:25 PM - 7:55 PM
7:53 AM - 9:23 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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