Water Temperature of San Francisco Bay in Alameda, CA

Current Water Temperature

63.0°F

Measurement Time: Monday, May 4, 2026, 5:36 AM PDT

Today's Tides

 High: May 4, 1:19 AM, 6.4 ft
Low: May 4, 8:31 AM, -0.5 ft
 High: May 4, 3:45 PM, 4.9 ft
Low: May 4, 8:16 PM, 3.2 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

55.9°F
Partly cloudy
Partly cloudy
54.7°F
53.3°F
80%
SW 6 mph
9.6 mph
53.9°F
51.8°F
0 in
50%
9 mi
1015 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Mon
H: 63°F
L: 53°F
Moderate rain
Tue
H: 60°F
L: 52°F
Sunny
Wed
H: 65°F
L: 52°F
Sunny
Thu
H: 67°F
L: 54°F
Sunny
Fri
H: 65°F
L: 53°F

Air Quality

AQI: 1 - Good
PM2.5: 6.15 μg/m3
PM10: 8.65 μg/m3
Carbon Monoxide: 141.85 μg/m3
Nitrogen Dioxide: 4.05 μg/m3
Sulphur Dioxide: 2.15 μg/m3
Ozone: 84 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 1:05 PM
Sunset: 8:03 PM
Daylight: 13 hrs 53 mins
Moonrise: 11:27 PM
Moon Transit: 3:06 AM
Moonset: 7:39 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.0%

Best Times for Fishing or Hunting

Major Periods

2:36 AM - 5:06 AM
10:34 AM - 1:04 PM

Minor Periods

12:00 AM - 12:00 AM
7:09 AM - 8:39 AM

Action Rating: 2 out of 5

Beach Hazards Statement issued May 3 at 1:12PM PDT until May 3 at 11:00PM PDT by NWS San Francisco CA

Effective: Sun May 3, 2026, 1:12 PM
Expires: Sun May 3, 2026, 11:00 PM

* WHAT...A long-period northwesterly swell will increase the risk of sneaker waves and strong rip currents. * WHERE...Beaches along the Pacific Coast. * WHEN...Now through Sunday evening. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion can be expected. Sneaker waves can sweep across the shoreline without warning, pulling people into the sea from rocks, jetties and beaches.

Stay off of jetties, piers, rocks, and other waterside infrastructure. Remain out of the water to avoid hazardous surf and NEVER turn your back on the ocean. Monitor local weather, surf and tide forecasts at www.weather.gov/mtr.
Monday, May 4, 2026

Weather Forecast

Patchy rain nearby
62.8°F
52.5°F
56.2°F
78%
0.01 in
87%
0%
10.5 mph
3.9


Air Quality

AQI: 1 - Good
PM2.5: 5.57 μg/m3
PM10: 7.73 μg/m3
Carbon Monoxide: 144.37 μg/m3
Nitrogen Dioxide: 4.61 μg/m3
Sulphur Dioxide: 2.13 μg/m3
Ozone: 79.92 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 1:05 PM
Sunset: 8:03 PM
Daylight: 13 hrs 53 mins
Moonrise: 11:27 PM
Moon Transit: 3:06 AM
Moonset: 7:39 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.0%

Best Times for Fishing or Hunting

Major Periods

2:36 AM - 5:06 AM
10:34 AM - 1:04 PM

Minor Periods

12:00 AM - 12:00 AM
7:09 AM - 8:39 AM

Action Rating: 2 out of 5

Tuesday, May 5, 2026

Weather Forecast

Moderate rain
60.4°F
51.6°F
54.8°F
80%
0.21 in
88%
0%
8.7 mph
4.2


Air Quality

AQI: 1 - Good
PM2.5: 6.87 μg/m3
PM10: 9.77 μg/m3
Carbon Monoxide: 140.25 μg/m3
Nitrogen Dioxide: 4.5 μg/m3
Sulphur Dioxide: 1.96 μg/m3
Ozone: 88.12 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 1:05 PM
Sunset: 8:04 PM
Daylight: 13 hrs 55 mins
Moonrise: 12:27 AM
Moon Transit: 3:57 AM
Moonset: 8:29 AM
Moon Phase: Waning Gibbous
Moon Illumination: 79.8%

Best Times for Fishing or Hunting

Major Periods

3:27 AM - 5:57 AM
11:25 AM - 1:55 PM

Minor Periods

7:59 AM - 9:29 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, May 6, 2026

Weather Forecast

Sunny
65°F
52.3°F
57.9°F
79%
0 in
0%
0%
10.3 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 9.99 μg/m3
PM10: 13.46 μg/m3
Carbon Monoxide: 153.09 μg/m3
Nitrogen Dioxide: 5.59 μg/m3
Sulphur Dioxide: 2.01 μg/m3
Ozone: 75.56 μg/m3

Astronomical

Sunrise: 6:08 AM
Sun Transit: 1:05 PM
Sunset: 8:05 PM
Daylight: 13 hrs 57 mins
Moonrise: 12:17 AM
Moon Transit: 4:49 AM
Moonset: 9:24 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.0%

Best Times for Fishing or Hunting

Major Periods

4:19 AM - 6:49 AM
12:16 AM - 2:46 PM

Minor Periods

8:54 AM - 10:24 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, May 7, 2026

Weather Forecast

Sunny
66.5°F
53.7°F
58.2°F
79%
0 in
0%
0%
11 mph
7.9


Air Quality

AQI: 1 - Good
PM2.5: 9.18 μg/m3
PM10: 12.23 μg/m3
Carbon Monoxide: 143.36 μg/m3
Nitrogen Dioxide: 5.61 μg/m3
Sulphur Dioxide: 1.89 μg/m3
Ozone: 69.64 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 1:05 PM
Sunset: 8:05 PM
Daylight: 13 hrs 59 mins
Moonrise: 12:59 AM
Moon Transit: 5:39 AM
Moonset: 10:24 AM
Moon Phase: Waning Gibbous
Moon Illumination: 59.1%

Best Times for Fishing or Hunting

Major Periods

5:09 AM - 7:39 AM
1:06 PM - 3:36 PM

Minor Periods

9:54 AM - 11:24 AM
12:29 AM - 1:59 AM

Action Rating: 2 out of 5

Friday, May 8, 2026

Weather Forecast

Sunny
64.8°F
52.6°F
56.4°F
79%
0 in
0%
0%
8.9 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 9.03 μg/m3
PM10: 12.09 μg/m3
Carbon Monoxide: 140.9 μg/m3
Nitrogen Dioxide: 5.83 μg/m3
Sulphur Dioxide: 1.73 μg/m3
Ozone: 67 μg/m3

Astronomical

Sunrise: 6:06 AM
Sun Transit: 1:05 PM
Sunset: 8:06 PM
Daylight: 14 hrs 1 mins
Moonrise: 1:35 AM
Moon Transit: 6:27 AM
Moonset: 11:26 AM
Moon Phase: Last Quarter
Moon Illumination: 47.9%

Best Times for Fishing or Hunting

Major Periods

5:57 AM - 8:27 AM
1:54 PM - 4:24 PM

Minor Periods

10:56 AM - 12:26 AM
1:05 AM - 2:35 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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