Water Temperature of San Francisco Bay in Menlo Park, CA

Current Water Temperature

63.7°F 17.6°C
Cool Brisk & Refreshing
63.7°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Feels brisk on entry. Great for short dips; wetsuit recommended for extended swimming or water sports.

Measurement Time: Friday, November 13, 2026, 8:45 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

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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)

Marine Weather for San Francisco Bay in Menlo Park, CA

Marine Weather

Coastal & Marine Conditions
Open-Meteo Marine
Ocean Current
0.0 mph
90° E
Sea Surface Temp
64.4°F
Equivalent: 18.0°C

High & Low Tide Forecast

Rising (Flood)
Next Tide: High 7:00 PM (+2.8 ft)
0.0 ft (MSL) Thu, Nov 12 6 PM 12 AM 6 AM 12 PM 6 PM 12 AM Fri, Nov 13 Sat, Nov 14 ▲ High 7:00 PM +3.4 ft ▼ Low 11:00 PM +2.0 ft ▲ High 5:00 AM +4.7 ft ▼ Low 12:00 PM -1.9 ft ▲ High 7:00 PM +2.8 ft ▼ Low 12:00 AM +1.8 ft NOW
High Tide Thu, Nov 12
7:00 PM
+3.4 ft (1.04 m)
Low Tide Thu, Nov 12
11:00 PM
+2.0 ft (0.62 m)
High Tide Fri, Nov 13
5:00 AM
+4.7 ft (1.44 m)
Low Tide Fri, Nov 13
12:00 PM
-1.9 ft (-0.57 m)
Open-Meteo Tidal Model (Mean Sea Level MSL datum) • Times in station local timezone.

5-Day Marine Wave Forecast

Today
Nov 13
0.0 ft
-- •
Sat
Nov 14
0.0 ft
-- •
Sun
Nov 15
0.0 ft
-- •
Mon
Nov 16
0.0 ft
-- •
Tue
Nov 17
0.0 ft
-- •

Weather for Menlo Park, California

Current Weather

56.1°F
Overcast
Conditions: Overcast
Humidity: 82%
Feels Like: 54.9°F
Wind: SW 3.5 mph
Wind Gusts: 14.5 mph
Pressure: 29.67 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 11.2 mi
UV Index: 0

Five-Day Weather Forecast

Heavy Rain
Fri
H: 62°F
L: 52°F
Light Drizzle
Sat
H: 61°F
L: 51°F
Moderate Rain
Sun
H: 67°F
L: 51°F
Light Drizzle
Mon
H: 61°F
L: 54°F
Overcast
Tue
H: 59°F
L: 52°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
7.8 μg/m³
Good
PM10
11.6 μg/m³
Good
Ozone (O3)
55 μg/m³
Photochemical
NO2
17.3 μg/m³
Nitrogen Dioxide
SO2
0.8 μg/m³
Sulfur Dioxide
CO
148 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 13m daylight
Sunrise 6:46 AM
Solar Noon 11:52 AM
Sunset 4:59 PM
Moon
Waxing Crescent • 13%
Moonrise 10:57 AM
Transit 3:35 PM
Moonset 8:18 PM

Best Times for Fishing or Hunting

Major Periods

2:40 AM - 5:10 AM
3:05 PM - 5:35 PM

Minor Periods

10:27 AM - 11:57 AM
7:48 PM - 9:18 PM
Action Rating:
Fair Action 2/5
Friday, November 13, 2026

Weather Forecast

Conditions: Heavy Rain
Average Temperature: 57.2°F
Average Humidity: 84%
Chance of Rain: 100%
Wind: 13.3 mph
UV Index: 1.4

Air Quality

EPA Index 2 • Moderate
PM2.5
5.2 μg/m³
Good
PM10
7.1 μg/m³
Good
Ozone (O3)
56.8 μg/m³
Photochemical
NO2
15.7 μg/m³
Nitrogen Dioxide
SO2
0.7 μg/m³
Sulfur Dioxide
CO
147.5 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 13m daylight
Sunrise 6:46 AM
Solar Noon 11:52 AM
Sunset 4:59 PM
Moon
Waxing Crescent • 13%
Moonrise 10:57 AM
Transit 3:35 PM
Moonset 8:18 PM

Best Times for Fishing or Hunting

Major Periods

2:40 AM - 5:10 AM
3:05 PM - 5:35 PM

Minor Periods

10:27 AM - 11:57 AM
7:48 PM - 9:18 PM
Action Rating:
Fair Action 2/5
Saturday, November 14, 2026

Weather Forecast

Conditions: Light Drizzle
Average Temperature: 55.2°F
Average Humidity: 84%
Chance of Rain: 29%
Wind: 7.1 mph
UV Index: 3.9

Air Quality

EPA Index 2 • Moderate
PM2.5
12 μg/m³
Good
PM10
16.1 μg/m³
Good
Ozone (O3)
35.6 μg/m³
Photochemical
NO2
29.8 μg/m³
Nitrogen Dioxide
SO2
1.4 μg/m³
Sulfur Dioxide
CO
174 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 11m daylight
Sunrise 6:48 AM
Solar Noon 11:52 AM
Sunset 4:58 PM
Moon
Waxing Crescent • 21%
Moonrise 11:36 AM
Transit 4:24 PM
Moonset 9:17 PM

Best Times for Fishing or Hunting

Major Periods

3:30 AM - 6:00 AM
3:54 PM - 6:24 PM

Minor Periods

11:06 AM - 12:36 PM
8:47 PM - 10:17 PM
Action Rating:
Fair Action 2/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Moderate Rain
Average Temperature: 57.7°F
Average Humidity: 75%
Chance of Rain: 96%
Wind: 10.3 mph
UV Index: 3.4

Air Quality

EPA Index 2 • Moderate
PM2.5
10.9 μg/m³
Good
PM10
14.3 μg/m³
Good
Ozone (O3)
39.8 μg/m³
Photochemical
NO2
26.4 μg/m³
Nitrogen Dioxide
SO2
1.1 μg/m³
Sulfur Dioxide
CO
157.2 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 9m daylight
Sunrise 6:49 AM
Solar Noon 11:53 AM
Sunset 4:58 PM
Moon
Waxing Crescent • 31%
Moonrise 12:09 PM
Transit 5:10 PM
Moonset 10:18 PM

Best Times for Fishing or Hunting

Major Periods

4:17 AM - 6:47 AM
4:40 PM - 7:10 PM

Minor Periods

11:39 AM - 1:09 PM
9:48 PM - 11:18 PM
Action Rating:
Very Good 4/5
Monday, November 16, 2026

Weather Forecast

Conditions: Light Drizzle
Average Temperature: 57.6°F
Average Humidity: 63%
Chance of Rain: 71%
Wind: 12 mph
UV Index: 3.7

Air Quality

EPA Index 2 • Moderate
PM2.5
9.6 μg/m³
Good
PM10
13 μg/m³
Good
Ozone (O3)
48.3 μg/m³
Photochemical
NO2
24.1 μg/m³
Nitrogen Dioxide
SO2
1.5 μg/m³
Sulfur Dioxide
CO
124.8 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 7m daylight
Sunrise 6:50 AM
Solar Noon 11:53 AM
Sunset 4:57 PM
Moon
First Quarter • 42%
Moonrise 12:38 PM
Transit 5:54 PM
Moonset 11:19 PM

Best Times for Fishing or Hunting

Major Periods

5:02 AM - 7:32 AM
5:24 PM - 7:54 PM

Minor Periods

12:08 PM - 1:38 PM
10:49 PM - 12:19 AM
Action Rating:
Good Action 3/5
Tuesday, November 17, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 55.6°F
Average Humidity: 57%
Chance of Rain: 37%
Wind: 6.9 mph
UV Index: 3.7

Air Quality

EPA Index 2 • Moderate
PM2.5
9 μg/m³
Good
PM10
11 μg/m³
Good
Ozone (O3)
47.1 μg/m³
Photochemical
NO2
24.1 μg/m³
Nitrogen Dioxide
SO2
1.5 μg/m³
Sulfur Dioxide
CO
156 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 6m daylight
Sunrise 6:51 AM
Solar Noon 11:53 AM
Sunset 4:56 PM
Moon
First Quarter • 54%
Moonrise 1:03 PM
Transit 6:37 PM
Moonset 1:28 AM

Best Times for Fishing or Hunting

Major Periods

5:46 AM - 8:16 AM
6:07 PM - 8:37 PM

Minor Periods

12:58 AM - 2:28 AM
12:33 PM - 2:03 PM
Action Rating:
Fair Action 2/5
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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