Water Temperature of San Francisco Bay in San Francisco, CA

Current Water Temperature

60.1°F

Measurement Time: Monday, June 8, 2026, 7:00 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

60.1°F
Overcast
Overcast
60.1°F
55.8°F
90%
SW 4 mph
6.3 mph
54.2°F
55.8°F
0 in
100%
9 mi
1015 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Tue
H: 69°F
L: 56°F
Sunny
Wed
H: 67°F
L: 55°F
Sunny
Thu
H: 71°F
L: 57°F
Sunny
Fri
H: 70°F
L: 57°F
Sunny
Sat
H: 70°F
L: 57°F

Air Quality

AQI: 1 - Good
PM2.5: 13.9 μg/m3
PM10: 22.5 μg/m3
Carbon Monoxide: 102 μg/m3
Nitrogen Dioxide: 9 μg/m3
Sulphur Dioxide: 0.9 μg/m3
Ozone: 40 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:09 PM
Sunset: 8:31 PM
Daylight: 14 hrs 44 mins
Moonrise: 1:49 AM
Moon Transit: 3:27 AM
Moonset: 2:36 PM
Moon Phase: Last Quarter
Moon Illumination: 21.6%

Best Times for Fishing or Hunting

Major Periods

2:57 AM - 5:27 AM
2:57 AM - 5:27 AM

Minor Periods

2:06 PM - 3:36 PM
1:19 AM - 2:49 AM

Action Rating: 4 out of 5

Red Flag Warning issued June 8 at 9:18AM PDT until June 11 at 5:00PM PDT by NWS Sacramento CA

Effective: Mon June 8, 2026, 9:18 AM
Expires: Tue June 9, 2026, 12:15 PM

The National Weather Service in Sacramento has issued a Red Flag Warning for gusty winds and low humidity, which is in effect from 11 AM Wednesday to 5 PM PDT Thursday. The Fire Weather Watch is no longer in effect. * Winds...North winds 15 to 25 mph. Gusts 30 to 40 mph, strongest along the far western Sacramento Valley. * Humidity...Daytime minimum humidities of 9 to 15%; Overnight maximum relative humidities 25 to 50% * Highest Threat...Along and west of the Interstate 5 corridor in the Sacramento Valley. * Impacts...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity. Outdoor burning is not recommended

A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.
Tuesday, June 9, 2026

Weather Forecast

Patchy rain nearby
69.1°F
55.6°F
59°F
85%
0.01 in
73%
0%
14.1 mph
9.3


Air Quality

AQI: 1 - Good
PM2.5: 9.97 μg/m3
PM10: 15.15 μg/m3
Carbon Monoxide: 109.79 μg/m3
Nitrogen Dioxide: 8.13 μg/m3
Sulphur Dioxide: 0.82 μg/m3
Ozone: 42 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:09 PM
Sunset: 8:31 PM
Daylight: 14 hrs 44 mins
Moonrise: 1:49 AM
Moon Transit: 3:27 AM
Moonset: 2:36 PM
Moon Phase: Last Quarter
Moon Illumination: 21.6%

Best Times for Fishing or Hunting

Major Periods

2:57 AM - 5:27 AM
2:57 AM - 5:27 AM

Minor Periods

2:06 PM - 3:36 PM
1:19 AM - 2:49 AM

Action Rating: 4 out of 5

Wednesday, June 10, 2026

Weather Forecast

Sunny
66.8°F
54.6°F
60.4°F
67%
0 in
1%
0%
10.3 mph
10.1


Air Quality

AQI: 1 - Good
PM2.5: 8.57 μg/m3
PM10: 12.28 μg/m3
Carbon Monoxide: 134.38 μg/m3
Nitrogen Dioxide: 10.07 μg/m3
Sulphur Dioxide: 0.72 μg/m3
Ozone: 55.88 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:09 PM
Sunset: 8:32 PM
Daylight: 14 hrs 45 mins
Moonrise: 2:15 AM
Moon Transit: 8:53 AM
Moonset: 3:45 PM
Moon Phase: Waning Crescent
Moon Illumination: 13.1%

Best Times for Fishing or Hunting

Major Periods

8:23 AM - 10:53 AM
4:20 PM - 6:50 PM

Minor Periods

3:15 PM - 4:45 PM
1:45 AM - 3:15 AM

Action Rating: 2 out of 5

Thursday, June 11, 2026

Weather Forecast

Sunny
71°F
57.4°F
63.2°F
62%
0 in
1%
0%
13.2 mph
10


Air Quality

AQI: 1 - Good
PM2.5: 12.88 μg/m3
PM10: 17.99 μg/m3
Carbon Monoxide: 137.17 μg/m3
Nitrogen Dioxide: 14.7 μg/m3
Sulphur Dioxide: 0.97 μg/m3
Ozone: 49.08 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:09 PM
Sunset: 8:32 PM
Daylight: 14 hrs 45 mins
Moonrise: 2:44 AM
Moon Transit: 9:44 AM
Moonset: 4:59 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.5%

Best Times for Fishing or Hunting

Major Periods

5:12 PM - 7:42 PM
9:14 AM - 11:44 AM

Minor Periods

4:29 PM - 5:59 PM
2:14 AM - 3:44 AM

Action Rating: 2 out of 5

Friday, June 12, 2026

Weather Forecast

Sunny
70.1°F
56.9°F
62.5°F
67%
0 in
1%
0%
12.8 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 13.54 μg/m3
PM10: 20.51 μg/m3
Carbon Monoxide: 112.58 μg/m3
Nitrogen Dioxide: 10.02 μg/m3
Sulphur Dioxide: 1.7 μg/m3
Ozone: 71.46 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:09 PM
Sunset: 8:33 PM
Daylight: 14 hrs 46 mins
Moonrise: 3:18 AM
Moon Transit: 10:41 AM
Moonset: 6:17 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

6:11 PM - 8:41 PM
10:11 AM - 12:41 AM

Minor Periods

5:47 PM - 7:17 PM
2:48 AM - 4:18 AM

Action Rating: 3 out of 5

Saturday, June 13, 2026

Weather Forecast

Sunny
69.9°F
57°F
61.1°F
70%
0 in
2%
0%
10.3 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 12.87 μg/m3
PM10: 18.92 μg/m3
Carbon Monoxide: 117.33 μg/m3
Nitrogen Dioxide: 7.45 μg/m3
Sulphur Dioxide: 1.6 μg/m3
Ozone: 61.67 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:09 PM
Sunset: 8:33 PM
Daylight: 14 hrs 46 mins
Moonrise: 4:00 AM
Moon Transit: 11:43 AM
Moonset: 7:35 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

7:14 PM - 9:44 PM
11:13 AM - 1:43 PM

Minor Periods

7:05 PM - 8:35 PM
3:30 AM - 5:00 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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