Water Temperature of San Francisco Bay in Alameda, CA

Current Water Temperature

Current temperature data is
not available at this time.

Today's Tides

Low: July 25, 4:30 AM, 0.1 ft
 High: July 25, 11:23 AM, 5.0 ft
Low: July 25, 3:52 PM, 3.5 ft
 High: July 25, 9:43 PM, 6.7 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

60.1°F
Mist
Mist
60.1°F
57.2°F
86%
SW 5.4 mph
8.2 mph
56.5°F
55.5°F
0 in
25%
9 mi
1015 mbar
0

Five Day Weather Forecast

Sunny
Sat
H: 73°F
L: 56°F
Sunny
Sun
H: 71°F
L: 58°F
Sunny
Mon
H: 73°F
L: 57°F
Sunny
Tue
H: 74°F
L: 58°F
Sunny
Wed
H: 75°F
L: 59°F

Air Quality

AQI: 1 - Good
PM2.5: 6.4 μg/m3
PM10: 8.5 μg/m3
Carbon Monoxide: 93 μg/m3
Nitrogen Dioxide: 4.9 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 43 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 1:15 PM
Sunset: 8:24 PM
Daylight: 14 hrs 17 mins
Moonrise: 6:04 PM
Moon Transit: 10:35 PM
Moonset: 2:17 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

5:11 AM - 7:41 AM
12:00 AM - 12:00 AM

Minor Periods

5:34 PM - 7:04 PM
1:47 AM - 3:17 AM

Action Rating: 2 out of 5

Small Craft Advisory issued July 24 at 2:40PM PDT until July 24 at 9:00PM PDT by NWS San Francisco CA

Effective: Fri July 24, 2026, 9:40 PM
Expires: Sat July 25, 2026, 5:45 AM

* WHAT...For the first Small Craft Advisory, west winds 10 to 15 kt with gusts up to 25 kt and a moderate chop expected. For the second Small Craft Advisory, west winds 10 to 15 kt with gusts up to 25 kt and a moderate chop expected. * WHERE...San Francisco Bay South of the Bay Bridge. * WHEN...For the first Small Craft Advisory, until 9 PM PDT this evening. For the second Small Craft Advisory, from 9 AM to 9 PM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.


Small Craft Advisory issued July 24 at 2:40PM PDT until July 25 at 9:00PM PDT by NWS San Francisco CA

Effective: Fri July 24, 2026, 9:40 PM
Expires: Sat July 25, 2026, 5:45 AM

* WHAT...For the first Small Craft Advisory, west winds 10 to 15 kt with gusts up to 25 kt and a moderate chop expected. For the second Small Craft Advisory, west winds 10 to 15 kt with gusts up to 25 kt and a moderate chop expected. * WHERE...San Francisco Bay South of the Bay Bridge. * WHEN...For the first Small Craft Advisory, until 9 PM PDT this evening. For the second Small Craft Advisory, from 9 AM to 9 PM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.


Small Craft Advisory issued July 24 at 8:33PM PDT until July 24 at 9:00PM PDT by NWS San Francisco CA

Effective: Sat July 25, 2026, 3:33 AM
Expires: Sat July 25, 2026, 11:45 AM

* WHAT...West winds 15 to 25 kt and a moderate chop expected. * WHERE...San Francisco Bay South of the Bay Bridge. * WHEN...From 9 AM to 9 PM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.


Small Craft Advisory issued July 24 at 8:33PM PDT until July 25 at 9:00PM PDT by NWS San Francisco CA

Effective: Sat July 25, 2026, 3:33 AM
Expires: Sat July 25, 2026, 11:45 AM

* WHAT...West winds 15 to 25 kt and a moderate chop expected. * WHERE...San Francisco Bay South of the Bay Bridge. * WHEN...From 9 AM to 9 PM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Saturday, July 25, 2026

Weather Forecast

Sunny
72.9°F
56.3°F
63.8°F
77%
0 in
9%
0%
10.7 mph
10.1


Air Quality

AQI: 1 - Good
PM2.5: 8.22 μg/m3
PM10: 11.71 μg/m3
Carbon Monoxide: 96.54 μg/m3
Nitrogen Dioxide: 3.73 μg/m3
Sulphur Dioxide: 0.77 μg/m3
Ozone: 53.29 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 1:15 PM
Sunset: 8:24 PM
Daylight: 14 hrs 17 mins
Moonrise: 6:04 PM
Moon Transit: 10:35 PM
Moonset: 2:17 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

5:11 AM - 7:41 AM
12:00 AM - 12:00 AM

Minor Periods

5:34 PM - 7:04 PM
1:47 AM - 3:17 AM

Action Rating: 2 out of 5

Sunday, July 26, 2026

Weather Forecast

Sunny
71.2°F
58.2°F
63.7°F
76%
0 in
8%
0%
10.3 mph
10.3


Air Quality

AQI: 1 - Good
PM2.5: 6.15 μg/m3
PM10: 8.61 μg/m3
Carbon Monoxide: 94.88 μg/m3
Nitrogen Dioxide: 3.68 μg/m3
Sulphur Dioxide: 0.83 μg/m3
Ozone: 42.08 μg/m3

Astronomical

Sunrise: 6:08 AM
Sun Transit: 1:15 PM
Sunset: 8:23 PM
Daylight: 14 hrs 15 mins
Moonrise: 6:53 PM
Moon Transit: 11:26 PM
Moonset: 3:06 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

6:03 AM - 8:33 AM
12:00 AM - 12:00 AM

Minor Periods

6:23 PM - 7:53 PM
2:36 AM - 4:06 AM

Action Rating: 4 out of 5

Monday, July 27, 2026

Weather Forecast

Sunny
73.3°F
57.1°F
64.2°F
71%
0 in
6%
0%
9.6 mph
10.1


Air Quality

AQI: 1 - Good
PM2.5: 9.38 μg/m3
PM10: 12.95 μg/m3
Carbon Monoxide: 99.38 μg/m3
Nitrogen Dioxide: 4.78 μg/m3
Sulphur Dioxide: 0.84 μg/m3
Ozone: 51.83 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 1:15 PM
Sunset: 8:23 PM
Daylight: 14 hrs 14 mins
Moonrise: 7:36 PM
Moon Transit: 12:00 AM
Moonset: 4:02 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
6:54 AM - 9:24 AM

Minor Periods

7:06 PM - 8:36 PM
3:32 AM - 5:02 AM

Action Rating: 3 out of 5

Tuesday, July 28, 2026

Weather Forecast

Sunny
73.8°F
57.9°F
64.7°F
73%
0 in
6%
0%
9.8 mph
10.1


Air Quality

AQI: 1 - Good
PM2.5: 7.28 μg/m3
PM10: 9.83 μg/m3
Carbon Monoxide: 95.79 μg/m3
Nitrogen Dioxide: 4.32 μg/m3
Sulphur Dioxide: 0.73 μg/m3
Ozone: 47.92 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 1:15 PM
Sunset: 8:22 PM
Daylight: 14 hrs 12 mins
Moonrise: 8:12 PM
Moon Transit: 12:17 AM
Moonset: 5:03 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:44 AM - 10:14 AM

Minor Periods

7:42 PM - 9:12 PM
4:33 AM - 6:03 AM

Action Rating: 4 out of 5

Wednesday, July 29, 2026

Weather Forecast

Sunny
75.2°F
58.8°F
65.1°F
74%
0 in
7%
0%
8.5 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 5.22 μg/m3
PM10: 6.58 μg/m3
Carbon Monoxide: 89.67 μg/m3
Nitrogen Dioxide: 6.33 μg/m3
Sulphur Dioxide: 0.62 μg/m3
Ozone: 26.67 μg/m3

Astronomical

Sunrise: 6:11 AM
Sun Transit: 1:15 PM
Sunset: 8:21 PM
Daylight: 14 hrs 10 mins
Moonrise: 8:43 PM
Moon Transit: 1:05 AM
Moonset: 6:05 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:35 AM - 3:05 AM
8:32 AM - 11:02 AM

Minor Periods

8:13 PM - 9:43 PM
5:35 AM - 7:05 AM

Action Rating: 4 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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