Water Temperature of San Francisco Bay in Alameda, CA

Current Water Temperature

65.1°F

Measurement Time: Thursday, May 21, 2026, 7:06 AM PDT

Today's Tides

 High: May 21, 3:32 AM, 6.5 ft
Low: May 21, 10:45 AM, -1.0 ft
 High: May 21, 6:00 PM, 5.6 ft
Low: May 21, 11:11 PM, 2.9 ft

Temperature Locations

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Local Points of Interest

USS Hornet; Naval Air Station Alameda; Encinal Beach; Oakland, CA

San Francisco Bay

Station Name: Alameda
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 0 feet

Sensor Depth: -4 feet

Nearest Address:
26 W Hornet Ave
Alameda, CA 94501
Alameda County

GPS Coordinates: 37.771700, -122.300000

Nearby Water Temperatures

San Francisco Bay, San Francisco, CA (5.7 mi)
San Francisco Bay, San Francisco, CA (7.7 mi)
San Francisco Bay, San Francisco, CA (9.4 mi)
San Francisco Bay, San Mateo, CA (10.2 mi)
San Francisco Bay, Richmond, CA (12.1 mi)
Rodeo Pond, Sausalito, CA (13 mi)
Rodeo Lagoon, Sausalito, CA (13.1 mi)
Rodeo Lagoon, Sausalito, CA (13.4 mi)
San Francisco Bay, San Rafael, CA (13.8 mi)
Redwood Creek, Redwood City, CA (19 mi)
Carquinez Strait, Martinez, CA (20.5 mi)
San Francisco Bay, Menlo Park, CA (20.9 mi)
Suisun Bay, Concord, CA (24.2 mi)
Coyote Creek, Alviso, CA (26.1 mi)
Pacific Ocean, San Francisco, CA (29.5 mi)

Weather for Alameda, California

Current Weather

52.7°F
Partly Cloudy
Partly Cloudy
52.7°F
52.7°F
94%
WSW 2.5 mph
4 mph
52.7°F
50°F
0 in
43%
6 mi
1012 mbar
4

Five Day Weather Forecast

Sunny
Thu
H: 75°F
L: 50°F
Sunny
Fri
H: 69°F
L: 52°F
Sunny
Sat
H: 64°F
L: 53°F
Sunny
Sun
H: 64°F
L: 51°F
Sunny
Mon
H: 62°F
L: 51°F

Air Quality

AQI: 1 - Good
PM2.5: 18.35 μg/m3
PM10: 25.55 μg/m3
Carbon Monoxide: 139.85 μg/m3
Nitrogen Dioxide: 4.55 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 95 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 1:05 PM
Sunset: 8:18 PM
Daylight: 14 hrs 23 mins
Moonrise: 10:54 AM
Moon Transit: 6:15 PM
Moonset: 12:50 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.2%

Best Times for Fishing or Hunting

Major Periods

12:49 AM - 3:19 AM
5:45 PM - 8:15 PM

Minor Periods

10:24 AM - 11:54 AM
12:20 AM - 1:50 AM

Action Rating: 3 out of 5

Thursday, May 21, 2026

Weather Forecast

Sunny
74.8°F
50.2°F
60.1°F
73%
0 in
0%
0%
9.4 mph
0


Air Quality

AQI: 2 - Moderate
PM2.5: 15.59 μg/m3
PM10: 21.12 μg/m3
Carbon Monoxide: 146.21 μg/m3
Nitrogen Dioxide: 11.54 μg/m3
Sulphur Dioxide: 1.63 μg/m3
Ozone: 55.32 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 1:05 PM
Sunset: 8:18 PM
Daylight: 14 hrs 23 mins
Moonrise: 10:54 AM
Moon Transit: 6:15 PM
Moonset: 12:50 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.2%

Best Times for Fishing or Hunting

Major Periods

12:49 AM - 3:19 AM
5:45 PM - 8:15 PM

Minor Periods

10:24 AM - 11:54 AM
12:20 AM - 1:50 AM

Action Rating: 3 out of 5

Friday, May 22, 2026

Weather Forecast

Sunny
68.5°F
52.4°F
59.4°F
73%
0 in
0%
0%
11.4 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 12.24 μg/m3
PM10: 17.46 μg/m3
Carbon Monoxide: 138.37 μg/m3
Nitrogen Dioxide: 7.61 μg/m3
Sulphur Dioxide: 1.62 μg/m3
Ozone: 69.8 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:05 PM
Sunset: 8:19 PM
Daylight: 14 hrs 25 mins
Moonrise: 12:05 AM
Moon Transit: 7:05 PM
Moonset: 1:24 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

1:43 AM - 4:13 AM
6:35 PM - 9:05 PM

Minor Periods

11:35 AM - 1:05 PM
12:54 AM - 2:24 AM

Action Rating: 2 out of 5

Saturday, May 23, 2026

Weather Forecast

Sunny
63.8°F
52.6°F
57.1°F
76%
0 in
0%
0%
13.2 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 10.43 μg/m3
PM10: 14.5 μg/m3
Carbon Monoxide: 130.41 μg/m3
Nitrogen Dioxide: 5.46 μg/m3
Sulphur Dioxide: 1.84 μg/m3
Ozone: 77.08 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 1:06 PM
Sunset: 8:19 PM
Daylight: 14 hrs 26 mins
Moonrise: 1:13 PM
Moon Transit: 7:51 PM
Moonset: 1:53 AM
Moon Phase: First Quarter
Moon Illumination: 44.4%

Best Times for Fishing or Hunting

Major Periods

2:31 AM - 5:01 AM
7:21 PM - 9:51 PM

Minor Periods

12:43 AM - 2:13 PM
1:23 AM - 2:53 AM

Action Rating: 2 out of 5

Sunday, May 24, 2026

Weather Forecast

Sunny
64.4°F
50.6°F
56.8°F
73%
0 in
0%
0%
11.4 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 7.51 μg/m3
PM10: 10.45 μg/m3
Carbon Monoxide: 114.3 μg/m3
Nitrogen Dioxide: 6.21 μg/m3
Sulphur Dioxide: 1.82 μg/m3
Ozone: 64.4 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 1:06 PM
Sunset: 8:20 PM
Daylight: 14 hrs 27 mins
Moonrise: 2:17 PM
Moon Transit: 8:34 PM
Moonset: 2:19 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

3:16 AM - 5:46 AM
8:04 PM - 10:34 PM

Minor Periods

1:47 PM - 3:17 PM
1:49 AM - 3:19 AM

Action Rating: 4 out of 5

Monday, May 25, 2026

Weather Forecast

Sunny
61.9°F
50.9°F
55°F
79%
0 in
0%
0%
11.9 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 8.05 μg/m3
PM10: 10.82 μg/m3
Carbon Monoxide: 131.71 μg/m3
Nitrogen Dioxide: 8.17 μg/m3
Sulphur Dioxide: 1.64 μg/m3
Ozone: 56.77 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:06 PM
Sunset: 8:21 PM
Daylight: 14 hrs 29 mins
Moonrise: 3:19 PM
Moon Transit: 9:16 PM
Moonset: 2:42 AM
Moon Phase: First Quarter
Moon Illumination: 66.7%

Best Times for Fishing or Hunting

Major Periods

3:59 AM - 6:29 AM
8:46 PM - 11:16 PM

Minor Periods

2:49 PM - 4:19 PM
2:12 AM - 3:42 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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