Water Temperature of San Francisco Bay in Menlo Park, CA

Current Water Temperature

70.3°F

Measurement Time: Saturday, August 29, 2026, 8:45 AM 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

57°F
Sunny
Sunny
99%
WNW 20 mph
57°F

Weather Forecast

Sunny
This Afternoon
60°F - Sunny
Mostly Clear
Tonight
55°F - Mostly Clear
Sunny
Sunday
61°F - Sunny
Mostly Clear
Sunday Night
55°F - Mostly Clear
Mostly Sunny
Monday
58°F - Mostly Sunny
Mostly Cloudy
Monday Night
56°F - Mostly Cloudy
Mostly Sunny
Tuesday
61°F - Mostly Sunny
Partly Cloudy
Tuesday Night
57°F - Partly Cloudy
Mostly Sunny
Wednesday
65°F - Mostly Sunny
Partly Cloudy
Wednesday Night
57°F - Partly Cloudy
Mostly Sunny
Thursday
65°F - Mostly Sunny
Partly Cloudy
Thursday Night
57°F - Partly Cloudy
Mostly Sunny
Friday
65°F - Mostly Sunny
Slight Chance Rain Showers
Friday Night
57°F - Slight Chance Rain Showers

Astronomical

Sunrise: 6:37 AM
Sun Transit: 1:09 PM
Sunset: 7:41 PM
Daylight: 13 hrs 5 mins
Moonrise: 8:25 PM
Moon Transit: 2:00 AM
Moonset: 8:08 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

1:30 AM - 4:00 AM
9:26 AM - 11:56 AM

Minor Periods

7:55 PM - 9:25 PM
7:38 AM - 9:08 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: 6:37 AM
Sun Transit: 1:09 PM
Sunset: 7:41 PM
Daylight: 13 hrs 5 mins
Moonrise: 8:25 PM
Moon Transit: 2:00 AM
Moonset: 8:08 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

1:30 AM - 4:00 AM
9:26 AM - 11:56 AM

Minor Periods

7:55 PM - 9:25 PM
7:38 AM - 9:08 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: 6:37 AM
Sun Transit: 1:09 PM
Sunset: 7:41 PM
Daylight: 13 hrs 5 mins
Moonrise: 8:25 PM
Moon Transit: 2:00 AM
Moonset: 8:08 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

1:30 AM - 4:00 AM
9:26 AM - 11:56 AM

Minor Periods

7:55 PM - 9:25 PM
7:38 AM - 9:08 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: 6:38 AM
Sun Transit: 1:09 PM
Sunset: 7:40 PM
Daylight: 13 hrs 2 mins
Moonrise: 8:50 PM
Moon Transit: 12:00 AM
Moonset: 9:13 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

8:20 PM - 9:50 PM
8:43 AM - 10:13 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: 6:38 AM
Sun Transit: 1:09 PM
Sunset: 7:40 PM
Daylight: 13 hrs 2 mins
Moonrise: 8:50 PM
Moon Transit: 12:00 AM
Moonset: 9:13 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

8:20 PM - 9:50 PM
8:43 AM - 10:13 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: 6:38 AM
Sun Transit: 1:08 PM
Sunset: 7:38 PM
Daylight: 13 hrs mins
Moonrise: 9:17 PM
Moon Transit: 3:29 AM
Moonset: 10:21 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

2:59 AM - 5:29 AM
10:57 AM - 1:27 PM

Minor Periods

8:47 PM - 10:17 PM
9:51 AM - 11:21 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: 6:38 AM
Sun Transit: 1:08 PM
Sunset: 7:38 PM
Daylight: 13 hrs mins
Moonrise: 9:17 PM
Moon Transit: 3:29 AM
Moonset: 10:21 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

2:59 AM - 5:29 AM
10:57 AM - 1:27 PM

Minor Periods

8:47 PM - 10:17 PM
9:51 AM - 11:21 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: 6:39 AM
Sun Transit: 1:08 PM
Sunset: 7:37 PM
Daylight: 12 hrs 58 mins
Moonrise: 9:50 PM
Moon Transit: 4:18 AM
Moonset: 11:30 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

3:48 AM - 6:18 AM
11:47 AM - 2:17 PM

Minor Periods

9:20 PM - 10:50 PM
11:00 AM - 12:30 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: 6:39 AM
Sun Transit: 1:08 PM
Sunset: 7:37 PM
Daylight: 12 hrs 58 mins
Moonrise: 9:50 PM
Moon Transit: 4:18 AM
Moonset: 11:30 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

3:48 AM - 6:18 AM
11:47 AM - 2:17 PM

Minor Periods

9:20 PM - 10:50 PM
11:00 AM - 12:30 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: 6:40 AM
Sun Transit: 1:08 PM
Sunset: 7:35 PM
Daylight: 12 hrs 55 mins
Moonrise: 10:29 PM
Moon Transit: 5:10 AM
Moonset: 12:42 AM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

4:40 AM - 7:10 AM
12:41 AM - 3:11 PM

Minor Periods

9:59 PM - 11:29 PM
12:12 AM - 1:42 PM

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: 6:40 AM
Sun Transit: 1:08 PM
Sunset: 7:35 PM
Daylight: 12 hrs 55 mins
Moonrise: 10:29 PM
Moon Transit: 5:10 AM
Moonset: 12:42 AM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

4:40 AM - 7:10 AM
12:41 AM - 3:11 PM

Minor Periods

9:59 PM - 11:29 PM
12:12 AM - 1:42 PM

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: 6:41 AM
Sun Transit: 1:07 PM
Sunset: 7:34 PM
Daylight: 12 hrs 53 mins
Moonrise: 11:16 PM
Moon Transit: 6:07 AM
Moonset: 1:55 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

5:37 AM - 8:07 AM
1:39 PM - 4:09 PM

Minor Periods

12:00 AM - 12:00 AM
1:25 PM - 2:55 PM

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: 6:41 AM
Sun Transit: 1:07 PM
Sunset: 7:34 PM
Daylight: 12 hrs 53 mins
Moonrise: 11:16 PM
Moon Transit: 6:07 AM
Moonset: 1:55 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

5:37 AM - 8:07 AM
1:39 PM - 4:09 PM

Minor Periods

12:00 AM - 12:00 AM
1:25 PM - 2:55 PM

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: 6:42 AM
Sun Transit: 1:07 PM
Sunset: 7:32 PM
Daylight: 12 hrs 51 mins
Moonrise: 12:16 AM
Moon Transit: 7:08 AM
Moonset: 3:03 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:38 AM - 9:08 AM
2:41 PM - 5:11 PM

Minor Periods

2:33 PM - 4:03 PM
12:00 AM - 12:00 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: 6:42 AM
Sun Transit: 1:07 PM
Sunset: 7:32 PM
Daylight: 12 hrs 51 mins
Moonrise: 12:16 AM
Moon Transit: 7:08 AM
Moonset: 3:03 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:38 AM - 9:08 AM
2:41 PM - 5:11 PM

Minor Periods

2:33 PM - 4:03 PM
12:00 AM - 12:00 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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