Water Temperature of San Francisco Bay in Alameda, CA

Current Water Temperature

66.6°F

Measurement Time: Monday, July 21, 2025, 11:54 PM PDT

Today's Tides

 Low: July 22, 5:03 AM, -0.94 ft
High: July 22, 12:00 PM, 5.36 ft
 Low: July 22, 4:29 PM, 3.30 ft
High: July 22, 10:29 PM, 7.67 ft

Temperature Locations

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Local Points of Interest

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

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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

60.1°F
Partly cloudy
Conditions: Partly cloudy
Humidity: 86%
Feels Like: 60.1°F
Wind: SW 6.7 mph
Wind Gusts: 10.3 mph
Pressure: 29.98 in
Precipitation: 0 in
Cloud Cover: 75%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Overcast
Tue
H: 62°F
L: 57°F
Mist
Wed
H: 63°F
L: 56°F
Mist
Thu
H: 63°F
L: 56°F
Sunny
Fri
H: 67°F
L: 56°F
Cloudy
Sat
H: 66°F
L: 57°F

Air Quality

PM2.5: 7.03 μg/m3
PM10: 9.44 μg/m3
Carbon Monoxide: 199.8 μg/m3
Nitrogen Dioxide: 7.03 μg/m3
Sulphur Dioxide: 1.67 μg/m3
Ozone: 30 μg/m3

Astronomical

Sunrise: 6:05 AM
Sun Transit: 1:15 PM
Sunset: 8:26 PM
Daylight: 14 hrs 21 mins
Moonrise: 3:23 AM
Moon Transit: 11:22 AM
Moonset: 7:18 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.6%

Best Times for Fishing or Hunting

Major Periods

6:53 PM - 9:23 PM
10:52 AM - 1:22 PM

Minor Periods

6:48 PM - 8:18 PM
2:53 AM - 4:23 AM

Action Rating: 3 out of 5

Coastal Flood Advisory issued July 21 at 9:04PM PDT until July 22 at 12:00AM PDT by NWS San Francisco CA

Effective: Mon July 21, 2025, 9:04 PM
Expires: Tue July 22, 2025, 12:00 AM

* WHAT...Minor coastal flooding expected. * WHERE...San Francisco, North Bay Interior Valleys and San Francisco Bay Shoreline Counties. * WHEN...Until midnight PDT tonight. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. * ADDITIONAL DETAILS...Up to one foot inundation above ground level is possible in low lying areas near shorelines and tidal waterways. At the San Francisco tidal gauge high tide is expected to be 1.04 feet above normal (6.88 ft MLLW) at 9:02 PM PDT Monday. High tide timing varies up to 2 hours earlier or later along the coast and throughout the Bay.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.


Coastal Flood Advisory issued July 21 at 9:04PM PDT until July 22 at 12:00AM PDT by NWS San Francisco CA

Effective: Mon July 21, 2025, 9:04 PM
Expires: Tue July 22, 2025, 12:00 AM

* WHAT...Minor coastal flooding expected. * WHERE...San Francisco, North Bay Interior Valleys and San Francisco Bay Shoreline Counties. * WHEN...Until midnight PDT tonight. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. * ADDITIONAL DETAILS...Up to one foot inundation above ground level is possible in low lying areas near shorelines and tidal waterways. At the San Francisco tidal gauge high tide is expected to be 1.04 feet above normal (6.88 ft MLLW) at 9:02 PM PDT Monday. High tide timing varies up to 2 hours earlier or later along the coast and throughout the Bay.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.


Coastal Flood Advisory issued July 21 at 9:04PM PDT until July 22 at 12:00AM PDT by NWS San Francisco CA

Effective: Mon July 21, 2025, 9:04 PM
Expires: Tue July 22, 2025, 12:00 AM

* WHAT...Minor coastal flooding expected. * WHERE...San Francisco, North Bay Interior Valleys and San Francisco Bay Shoreline Counties. * WHEN...Until midnight PDT tonight. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. * ADDITIONAL DETAILS...Up to one foot inundation above ground level is possible in low lying areas near shorelines and tidal waterways. At the San Francisco tidal gauge high tide is expected to be 1.04 feet above normal (6.88 ft MLLW) at 9:02 PM PDT Monday. High tide timing varies up to 2 hours earlier or later along the coast and throughout the Bay.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.


Coastal Flood Advisory issued July 21 at 9:04PM PDT until July 22 at 12:00AM PDT by NWS San Francisco CA

Effective: Mon July 21, 2025, 9:04 PM
Expires: Tue July 22, 2025, 12:00 AM

* WHAT...Minor coastal flooding expected. * WHERE...San Francisco, North Bay Interior Valleys and San Francisco Bay Shoreline Counties. * WHEN...Until midnight PDT tonight. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. * ADDITIONAL DETAILS...Up to one foot inundation above ground level is possible in low lying areas near shorelines and tidal waterways. At the San Francisco tidal gauge high tide is expected to be 1.04 feet above normal (6.88 ft MLLW) at 9:02 PM PDT Monday. High tide timing varies up to 2 hours earlier or later along the coast and throughout the Bay.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.


Coastal Flood Advisory issued July 21 at 9:04PM PDT until July 22 at 12:00AM PDT by NWS San Francisco CA

Effective: Mon July 21, 2025, 9:04 PM
Expires: Tue July 22, 2025, 12:00 AM

* WHAT...Minor coastal flooding expected. * WHERE...San Francisco, North Bay Interior Valleys and San Francisco Bay Shoreline Counties. * WHEN...Until midnight PDT tonight. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. * ADDITIONAL DETAILS...Up to one foot inundation above ground level is possible in low lying areas near shorelines and tidal waterways. At the San Francisco tidal gauge high tide is expected to be 1.04 feet above normal (6.88 ft MLLW) at 9:02 PM PDT Monday. High tide timing varies up to 2 hours earlier or later along the coast and throughout the Bay.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.


Tuesday, July 22, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 59.1°F
Average Humidity: 91%
Chance of Rain: 0%
Wind: 11.9 mph
UV Index: 1.9

Air Quality

AQI: 1 - Good
PM2.5: 10.53 μg/m3
PM10: 13.41 μg/m3
Carbon Monoxide: 184.78 μg/m3
Nitrogen Dioxide: 7.22 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 36.44 μg/m3

Astronomical

Sunrise: 6:05 AM
Sun Transit: 1:15 PM
Sunset: 8:26 PM
Daylight: 14 hrs 21 mins
Moonrise: 3:23 AM
Moon Transit: 11:22 AM
Moonset: 7:18 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.6%

Best Times for Fishing or Hunting

Major Periods

6:53 PM - 9:23 PM
10:52 AM - 1:22 PM

Minor Periods

6:48 PM - 8:18 PM
2:53 AM - 4:23 AM

Action Rating: 3 out of 5

Wednesday, July 23, 2025

Weather Forecast

Conditions: Mist
Average Temperature: 58.6°F
Average Humidity: 90%
Chance of Rain: 0%
Wind: 13.6 mph
UV Index: 2.5

Air Quality

AQI: 1 - Good
PM2.5: 12.4 μg/m3
PM10: 15.56 μg/m3
Carbon Monoxide: 215.71 μg/m3
Nitrogen Dioxide: 7.97 μg/m3
Sulphur Dioxide: 1.8 μg/m3
Ozone: 51.92 μg/m3

Astronomical

Sunrise: 6:06 AM
Sun Transit: 1:15 PM
Sunset: 8:26 PM
Daylight: 14 hrs 20 mins
Moonrise: 4:31 AM
Moon Transit: 12:24 AM
Moonset: 8:10 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

7:54 PM - 10:24 PM
11:54 AM - 2:24 PM

Minor Periods

7:40 PM - 9:10 PM
4:01 AM - 5:31 AM

Action Rating: 2 out of 5

Thursday, July 24, 2025

Weather Forecast

Conditions: Mist
Average Temperature: 58.4°F
Average Humidity: 91%
Chance of Rain: 0%
Wind: 14.8 mph
UV Index: 2.5

Air Quality

AQI: 1 - Good
PM2.5: 10.5 μg/m3
PM10: 12.41 μg/m3
Carbon Monoxide: 221.04 μg/m3
Nitrogen Dioxide: 7.38 μg/m3
Sulphur Dioxide: 1.38 μg/m3
Ozone: 54.08 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 1:15 PM
Sunset: 8:25 PM
Daylight: 14 hrs 18 mins
Moonrise: 5:43 AM
Moon Transit: 1:22 PM
Moonset: 8:50 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

8:51 PM - 11:21 PM
12:52 AM - 3:22 PM

Minor Periods

8:20 PM - 9:50 PM
5:13 AM - 6:43 AM

Action Rating: 5 out of 5

Friday, July 25, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 60.9°F
Average Humidity: 74%
Chance of Rain: 0%
Wind: 14.5 mph
UV Index: 2.6

Air Quality

AQI: 1 - Good
PM2.5: 12.75 μg/m3
PM10: 15.24 μg/m3
Carbon Monoxide: 228.26 μg/m3
Nitrogen Dioxide: 8.07 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 51.08 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 1:15 PM
Sunset: 8:24 PM
Daylight: 14 hrs 17 mins
Moonrise: 6:56 AM
Moon Transit: 2:14 PM
Moonset: 9:22 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:44 PM - 4:14 PM

Minor Periods

8:52 PM - 10:22 PM
6:26 AM - 7:56 AM

Action Rating: 5 out of 5

Saturday, July 26, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 59.6°F
Average Humidity: 77%
Chance of Rain: 0%
Wind: 13.4 mph
UV Index: 0

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: 6:08 AM
Sun Transit: 1:15 PM
Sunset: 8:23 PM
Daylight: 14 hrs 15 mins
Moonrise: 8:05 AM
Moon Transit: 3:02 PM
Moonset: 9:50 PM
Moon Phase: New
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:32 PM - 5:02 PM

Minor Periods

9:20 PM - 10:50 PM
7:35 AM - 9:05 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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