Water Temperature of San Francisco Bay in Alameda, CA
Current Water Temperature
69.6°F
Measurement Time: Sunday, September 21, 2025, 4:06 PM PDT
Today's Tides
High: September 21, 12:01 AM, 6.30 ft
Low: September 21, 6:16 AM, 0.49 ft
High: September 21, 12:44 PM, 6.24 ft
Low: September 21, 6:40 PM, 1.09 ft
Temperature Locations
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Local Points of Interest
USS Hornet; Naval Air Station Alameda; Encinal Beach; Oakland, CASponsored Content
San Francisco Bay
Station Name: Alameda
Data Source: NOAA Tides and Currents
Elevation Above Sea Level: 0 feet / 0 meters
Sensor Depth: -3.9 feet / -1.2 meters
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 (13.0 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 (19.0 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
84.9°F

Conditions: Sunny
Humidity: 39%
Feels Like: 88.1°F
Wind: W 6.9 mph
Wind Gusts: 8.6 mph
Humidity: 39%
Feels Like: 88.1°F
Wind: W 6.9 mph
Wind Gusts: 8.6 mph
Pressure: 29.87 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 3.1
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 3.1
Five Day Weather Forecast

Sun
H: 82°F
L: 58°F

Mon
H: 68°F
L: 55°F

Tue
H: 80°F
L: 56°F

Wed
H: 74°F
L: 61°F

Thu
H: 74°F
L: 61°F
Air Quality
AQI:
2 - Moderate
PM2.5:
20.35 μg/m3
PM10:
22.57 μg/m3
Carbon Monoxide: 283.05 μg/m3
Nitrogen Dioxide: 49.77 μg/m3
Sulphur Dioxide: 3.52 μg/m3
Ozone: 24 μg/m3
Nitrogen Dioxide: 49.77 μg/m3
Sulphur Dioxide: 3.52 μg/m3
Ozone: 24 μg/m3
Astronomical
Sunrise: 6:57 AM
Sun Transit: 1:02 PM
Sunset: 7:07 PM
Daylight: 12 hrs 10 mins
Sun Transit: 1:02 PM
Sunset: 7:07 PM
Daylight: 12 hrs 10 mins
Moonrise: 6:48 AM
Moon Transit: 1:00 PM
Moonset: 7:03 PM
Moon Phase: New
Moon Illumination: 0.3%
Moon Transit: 1:00 PM
Moonset: 7:03 PM
Moon Phase: New
Moon Illumination: 0.3%
Best Times for Fishing or Hunting
Major Periods
8:25 PM - 10:55 PM12:30 AM - 3:00 PM
Minor Periods
6:33 PM - 8:03 PM6:18 AM - 7:48 AM
Action Rating: 3 out of 5
Sunday, September 21, 2025
Weather Forecast
Conditions: Partly Cloudy
Average Temperature: 66.1°F
Average Humidity: 84%
Average Temperature: 66.1°F
Average Humidity: 84%
Chance of Rain: 0%
Wind: 7.4 mph
UV Index: 1.5
Wind: 7.4 mph
UV Index: 1.5
Air Quality
AQI:
2 - Moderate
PM2.5:
19.11 μg/m3
PM10:
23.07 μg/m3
Carbon Monoxide: 308.95 μg/m3
Nitrogen Dioxide: 15.34 μg/m3
Sulphur Dioxide: 3.3 μg/m3
Ozone: 60.4 μg/m3
Nitrogen Dioxide: 15.34 μg/m3
Sulphur Dioxide: 3.3 μg/m3
Ozone: 60.4 μg/m3
Astronomical
Sunrise: 6:57 AM
Sun Transit: 1:02 PM
Sunset: 7:07 PM
Daylight: 12 hrs 10 mins
Sun Transit: 1:02 PM
Sunset: 7:07 PM
Daylight: 12 hrs 10 mins
Moonrise: 6:48 AM
Moon Transit: 1:00 PM
Moonset: 7:03 PM
Moon Phase: New
Moon Illumination: 0.3%
Moon Transit: 1:00 PM
Moonset: 7:03 PM
Moon Phase: New
Moon Illumination: 0.3%
Best Times for Fishing or Hunting
Major Periods
8:25 PM - 10:55 PM12:30 AM - 3:00 PM
Minor Periods
6:33 PM - 8:03 PM6:18 AM - 7:48 AM
Action Rating: 3 out of 5
Monday, September 22, 2025
Weather Forecast
Conditions: Partly Cloudy
Average Temperature: 60.7°F
Average Humidity: 87%
Average Temperature: 60.7°F
Average Humidity: 87%
Chance of Rain: 0%
Wind: 8.7 mph
UV Index: 1.6
Wind: 8.7 mph
UV Index: 1.6
Air Quality
AQI:
2 - Moderate
PM2.5:
21.5 μg/m3
PM10:
25.31 μg/m3
Carbon Monoxide: 304.36 μg/m3
Nitrogen Dioxide: 30.75 μg/m3
Sulphur Dioxide: 5.45 μg/m3
Ozone: 47.96 μg/m3
Nitrogen Dioxide: 30.75 μg/m3
Sulphur Dioxide: 5.45 μg/m3
Ozone: 47.96 μg/m3
Astronomical
Sunrise: 6:57 AM
Sun Transit: 1:01 PM
Sunset: 7:05 PM
Daylight: 12 hrs 8 mins
Sun Transit: 1:01 PM
Sunset: 7:05 PM
Daylight: 12 hrs 8 mins
Moonrise: 7:48 AM
Moon Transit: 1:41 PM
Moonset: 7:25 PM
Moon Phase: New
Moon Illumination: 2.9%
Moon Transit: 1:41 PM
Moonset: 7:25 PM
Moon Phase: New
Moon Illumination: 2.9%
Best Times for Fishing or Hunting
Major Periods
9:05 PM - 11:35 PM1:11 PM - 3:41 PM
Minor Periods
6:55 PM - 8:25 PM7:18 AM - 8:48 AM
Action Rating: 5 out of 5
Tuesday, September 23, 2025
Weather Forecast
Conditions: Partly Cloudy
Average Temperature: 64.3°F
Average Humidity: 81%
Average Temperature: 64.3°F
Average Humidity: 81%
Chance of Rain: 0%
Wind: 8.3 mph
UV Index: 0
Wind: 8.3 mph
UV Index: 0
Air Quality
AQI:
2 - Moderate
PM2.5:
28.57 μg/m3
PM10:
34.03 μg/m3
Carbon Monoxide: 374.44 μg/m3
Nitrogen Dioxide: 40.23 μg/m3
Sulphur Dioxide: 6.36 μg/m3
Ozone: 49.64 μg/m3
Nitrogen Dioxide: 40.23 μg/m3
Sulphur Dioxide: 6.36 μg/m3
Ozone: 49.64 μg/m3
Astronomical
Sunrise: 6:58 AM
Sun Transit: 1:01 PM
Sunset: 7:04 PM
Daylight: 12 hrs 6 mins
Sun Transit: 1:01 PM
Sunset: 7:04 PM
Daylight: 12 hrs 6 mins
Moonrise: 8:48 AM
Moon Transit: 2:22 PM
Moonset: 7:48 PM
Moon Phase: New
Moon Illumination: 0.6%
Moon Transit: 2:22 PM
Moonset: 7:48 PM
Moon Phase: New
Moon Illumination: 0.6%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM1:52 PM - 4:22 PM
Minor Periods
7:18 PM - 8:48 PM8:18 AM - 9:48 AM
Action Rating: 4 out of 5
Wednesday, September 24, 2025
Weather Forecast
Conditions: Overcast
Average Temperature: 67.2°F
Average Humidity: 69%
Average Temperature: 67.2°F
Average Humidity: 69%
Chance of Rain: 0%
Wind: 9.6 mph
UV Index: 4
Wind: 9.6 mph
UV Index: 4
Air Quality
AQI:
2 - Moderate
PM2.5:
20.79 μg/m3
PM10:
26.01 μg/m3
Carbon Monoxide: 324.42 μg/m3
Nitrogen Dioxide: 21.72 μg/m3
Sulphur Dioxide: 4.74 μg/m3
Ozone: 68.68 μg/m3
Nitrogen Dioxide: 21.72 μg/m3
Sulphur Dioxide: 4.74 μg/m3
Ozone: 68.68 μg/m3
Astronomical
Sunrise: 6:59 AM
Sun Transit: 1:01 PM
Sunset: 7:02 PM
Daylight: 12 hrs 3 mins
Sun Transit: 1:01 PM
Sunset: 7:02 PM
Daylight: 12 hrs 3 mins
Moonrise: 9:48 AM
Moon Transit: 3:04 PM
Moonset: 8:13 PM
Moon Phase: New
Moon Illumination: 3.6%
Moon Transit: 3:04 PM
Moonset: 8:13 PM
Moon Phase: New
Moon Illumination: 3.6%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM2:34 PM - 5:04 PM
Minor Periods
7:43 PM - 9:13 PM9:18 AM - 10:48 AM
Action Rating: 3 out of 5
Thursday, September 25, 2025
Weather Forecast
Conditions: Partly Cloudy
Average Temperature: 65.2°F
Average Humidity: 76%
Average Temperature: 65.2°F
Average Humidity: 76%
Chance of Rain: 0%
Wind: 11.9 mph
UV Index: 5
Wind: 11.9 mph
UV Index: 5
Air Quality
AQI:
2 - Moderate
PM2.5:
21.74 μg/m3
PM10:
25.06 μg/m3
Carbon Monoxide: 334.42 μg/m3
Nitrogen Dioxide: 31.34 μg/m3
Sulphur Dioxide: 4.21 μg/m3
Ozone: 51.15 μg/m3
Nitrogen Dioxide: 31.34 μg/m3
Sulphur Dioxide: 4.21 μg/m3
Ozone: 51.15 μg/m3
Astronomical
Sunrise: 7:00 AM
Sun Transit: 1:00 PM
Sunset: 7:01 PM
Daylight: 12 hrs 1 mins
Sun Transit: 1:00 PM
Sunset: 7:01 PM
Daylight: 12 hrs 1 mins
Moonrise: 10:50 AM
Moon Transit: 3:48 PM
Moonset: 8:42 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.9%
Moon Transit: 3:48 PM
Moonset: 8:42 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.9%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM3:18 PM - 5:48 PM
Minor Periods
8:12 PM - 9:42 PM10:20 AM - 11:50 AM
Action Rating: 2 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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