Water Temperature of San Francisco Bay in San Francisco, CA

Current Water Temperature

64.0°F

Measurement Time: Monday, June 29, 2026, 10:00 PM PDT

Temperature Locations

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Local Points of Interest

Alcatraz Island

San Francisco Bay

Station Name: SAN FRANCISCO BAY A NE SHORE ALCATRAZ ISLAND CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
Alcatraz Island
San Francisco, CA 94133-1312
San Francisco County

GPS Coordinates: 37.8272222, -122.4216667

Nearby Water Temperatures

San Francisco Bay, San Francisco, CA (2.1 mi)
San Francisco Bay, San Francisco, CA (2.8 mi)
Rodeo Pond, Sausalito, CA (5.6 mi)
Rodeo Lagoon, Sausalito, CA (5.8 mi)
Rodeo Lagoon, Sausalito, CA (6.1 mi)
San Francisco Bay, Richmond, CA (7.1 mi)
San Francisco Bay, San Rafael, CA (7.6 mi)
San Francisco Bay, Alameda, CA (7.7 mi)
San Francisco Bay, San Mateo, CA (16.7 mi)
Carquinez Strait, Martinez, CA (21.6 mi)
Pacific Ocean, San Francisco, CA (23.3 mi)
Redwood Creek, Redwood City, CA (25 mi)
Suisun Bay, Concord, CA (26.1 mi)
San Francisco Bay, Menlo Park, CA (27.7 mi)
Drakes Bay, Inverness, CA (32.2 mi)

Weather for San Francisco, California

Current Weather

55°F
Partly cloudy
Partly cloudy
52.8°F
53.4°F
89%
SSW 8.3 mph
12.4 mph
51.8°F
51.6°F
0 in
75%
8 mi
1012 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 71°F
L: 53°F
Sunny
Wed
H: 66°F
L: 55°F
Sunny
Thu
H: 65°F
L: 56°F
Sunny
Fri
H: 67°F
L: 57°F
Patchy rain nearby
Sat
H: 63°F
L: 56°F

Air Quality

AQI: 1 - Good
PM2.5: 11.8 μg/m3
PM10: 18.7 μg/m3
Carbon Monoxide: 90 μg/m3
Nitrogen Dioxide: 6.9 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 50 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:13 PM
Sunset: 8:36 PM
Daylight: 14 hrs 45 mins
Moonrise: 9:36 PM
Moon Transit: 1:31 AM
Moonset: 6:11 AM
Moon Phase: Full
Moon Illumination: 98.6%

Best Times for Fishing or Hunting

Major Periods

1:01 AM - 3:31 AM
8:58 AM - 11:28 AM

Minor Periods

9:06 PM - 10:36 PM
5:41 AM - 7:11 AM

Action Rating: 4 out of 5

Small Craft Advisory issued June 29 at 8:16PM PDT until June 30 at 3:00AM PDT by NWS San Francisco CA

Effective: Mon June 29, 2026, 8:16 PM
Expires: Tue June 30, 2026, 3:00 AM

* WHAT...Northwest winds 10 to 20 kt. * WHERE...Coastal Waters from Point Reyes to Pigeon Point California out to 10 NM. * WHEN...Until 3 AM PDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Tuesday, June 30, 2026

Weather Forecast

Sunny
71.2°F
53.4°F
59.6°F
80%
0 in
10%
0%
15 mph
9.3


Air Quality

AQI: 1 - Good
PM2.5: 11.63 μg/m3
PM10: 18.13 μg/m3
Carbon Monoxide: 94.75 μg/m3
Nitrogen Dioxide: 6.52 μg/m3
Sulphur Dioxide: 0.81 μg/m3
Ozone: 58.21 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:13 PM
Sunset: 8:36 PM
Daylight: 14 hrs 45 mins
Moonrise: 9:36 PM
Moon Transit: 1:31 AM
Moonset: 6:11 AM
Moon Phase: Full
Moon Illumination: 98.6%

Best Times for Fishing or Hunting

Major Periods

1:01 AM - 3:31 AM
8:58 AM - 11:28 AM

Minor Periods

9:06 PM - 10:36 PM
5:41 AM - 7:11 AM

Action Rating: 4 out of 5

Wednesday, July 1, 2026

Weather Forecast

Sunny
66.4°F
55.3°F
60°F
74%
0 in
8%
0%
14.3 mph
8.7


Air Quality

AQI: 1 - Good
PM2.5: 12.14 μg/m3
PM10: 19.72 μg/m3
Carbon Monoxide: 92.67 μg/m3
Nitrogen Dioxide: 4.72 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 62.33 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:13 PM
Sunset: 8:36 PM
Daylight: 14 hrs 45 mins
Moonrise: 10:11 PM
Moon Transit: 2:21 AM
Moonset: 7:11 AM
Moon Phase: Full
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

1:51 AM - 4:21 AM
9:47 AM - 12:17 AM

Minor Periods

9:41 PM - 11:11 PM
6:41 AM - 8:11 AM

Action Rating: 3 out of 5

Thursday, July 2, 2026

Weather Forecast

Sunny
65.3°F
55.6°F
59.3°F
77%
0 in
10%
0%
15.2 mph
8.9


Air Quality

AQI: 1 - Good
PM2.5: 11.71 μg/m3
PM10: 18.77 μg/m3
Carbon Monoxide: 91.17 μg/m3
Nitrogen Dioxide: 4.3 μg/m3
Sulphur Dioxide: 0.82 μg/m3
Ozone: 54.88 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:13 PM
Sunset: 8:36 PM
Daylight: 14 hrs 44 mins
Moonrise: 10:40 PM
Moon Transit: 3:09 AM
Moonset: 8:14 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

2:39 AM - 5:09 AM
10:34 AM - 1:04 PM

Minor Periods

10:10 PM - 11:40 PM
7:44 AM - 9:14 AM

Action Rating: 2 out of 5

Friday, July 3, 2026

Weather Forecast

Sunny
66.5°F
56.8°F
60.2°F
77%
0 in
17%
0%
13.4 mph
9.8


Air Quality

AQI: 1 - Good
PM2.5: 9.92 μg/m3
PM10: 15.48 μg/m3
Carbon Monoxide: 96.01 μg/m3
Nitrogen Dioxide: 5.35 μg/m3
Sulphur Dioxide: 0.99 μg/m3
Ozone: 37.67 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:14 PM
Sunset: 8:36 PM
Daylight: 14 hrs 43 mins
Moonrise: 11:06 PM
Moon Transit: 3:54 AM
Moonset: 9:16 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.3%

Best Times for Fishing or Hunting

Major Periods

3:24 AM - 5:54 AM
11:18 AM - 1:48 PM

Minor Periods

12:00 AM - 12:00 AM
8:46 AM - 10:16 AM

Action Rating: 3 out of 5

Saturday, July 4, 2026

Weather Forecast

Patchy rain nearby
63.4°F
55.8°F
59.2°F
81%
0.01 in
24%
0%
15.2 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 10.48 μg/m3
PM10: 16.05 μg/m3
Carbon Monoxide: 91.67 μg/m3
Nitrogen Dioxide: 5.4 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 43 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 1:14 PM
Sunset: 8:36 PM
Daylight: 14 hrs 43 mins
Moonrise: 12:06 AM
Moon Transit: 4:37 AM
Moonset: 10:19 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.6%

Best Times for Fishing or Hunting

Major Periods

4:07 AM - 6:37 AM
12:02 AM - 2:32 PM

Minor Periods

9:49 AM - 11:19 AM
12:00 AM - 12:00 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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