Water Temperature of San Francisco Bay in San Francisco, CA

Current Water Temperature

63.3°F

Measurement Time: Monday, July 6, 2026, 12:00 AM 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

Conditions: Overcast

Feels Like: 60.1°F

Heat Index: 56.1°F

Humidity: 80%

Wind: SW 6.3 mph

Wind Gusts: 8.1 mph

Wind Chill: 54.8°F

Dew Point: 54.2°F

Precipitation: 0 in

Cloud Cover: 100%

Visibility: 9 mi

Air Pressure: 1016 mbar

UV Index: 0.8

Five Day Weather Forecast

Mon
H: 63°F
L: 55°F

Tue
H: 62°F
L: 57°F

Wed
H: 64°F
L: 56°F

Thu
H: 66°F
L: 57°F

Fri
H: 64°F
L: 56°F

Air Quality

AQI: 1 - Good

PM2.5: 4.8 μg/m3

PM10: 7.3 μg/m3

Carbon Monoxide: 92 μg/m3
Nitrogen Dioxide: 4 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 56 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:14 PM
Sunset: 8:35 PM
Daylight: 14 hrs 41 mins

Moonrise: 12:53 AM
Moon Transit: 10:15 AM
Moonset: 12:25 AM
Moon Phase: Last Quarter
Moon Illumination: 48.6%

Best Times for Fishing or Hunting

Major Periods

9:45 AM - 12:15 AM
9:45 AM - 12:15 AM

Minor Periods

11:55 AM - 1:25 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Beach Hazards Statement issued July 6 at 3:01AM PDT until July 10 at 5:00PM PDT by NWS San Francisco CA

Effective: Mon July 6, 2026, 3:01 AM
Expires: Mon July 6, 2026, 1:15 PM

* WHAT...An increased risk of sneaker waves and strong rip currents due to long period SW swell. * WHERE...Pacific Coast Beaches. * WHEN...From Tuesday morning through Friday afternoon. * IMPACTS...Dangerous conditions are forecast along the shoreline. Hazards include sneaker waves, strong rip currents, and large breaking waves.

Stay off of jetties, piers, rocks, and other waterside infrastructure. Remain out of the water to avoid hazardous surf and NEVER turn your back on the ocean. Monitor local weather, surf and tide forecasts at www.weather.gov/mtr.

Small Craft Advisory issued July 6 at 2:39AM PDT until July 8 at 9:00PM PDT by NWS San Francisco CA

Effective: Mon July 6, 2026, 2:39 AM
Expires: Mon July 6, 2026, 10:45 AM

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt expected. * WHERE...Coastal Waters from Point Reyes to Pigeon Point California out to 10 NM. * WHEN...From 3 PM Tuesday to 9 PM PDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft.

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

Monday, July 6, 2026

Weather Forecast

Conditions: Overcast

High Temperature: 63.1°F

Low Temperature: 54.7°F

Average Temperature: 57.8°F

Average Humidity: 90%

Precipitation: 0 in

Chance of Rain: 26%

Chance of Snow: 0%

Maximum Wind: 14.8 mph

UV Index: 9.9

Air Quality

AQI: 1 - Good

PM2.5: 6.87 μg/m3

PM10: 10.54 μg/m3

Carbon Monoxide: 90.83 μg/m3
Nitrogen Dioxide: 3.79 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 57.21 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:14 PM
Sunset: 8:35 PM
Daylight: 14 hrs 41 mins

Moonrise: 12:53 AM
Moon Transit: 10:15 AM
Moonset: 12:25 AM
Moon Phase: Last Quarter
Moon Illumination: 48.6%

Best Times for Fishing or Hunting

Major Periods

9:45 AM - 12:15 AM
9:45 AM - 12:15 AM

Minor Periods

11:55 AM - 1:25 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Tuesday, July 7, 2026

Weather Forecast

Conditions: Sunny

High Temperature: 62.2°F

Low Temperature: 56.5°F

Average Temperature: 58.8°F

Average Humidity: 79%

Precipitation: 0 in

Chance of Rain: 20%

Chance of Snow: 0%

Maximum Wind: 15.7 mph

UV Index: 5

Air Quality

AQI: 1 - Good

PM2.5: 9.68 μg/m3

PM10: 15.04 μg/m3

Carbon Monoxide: 89.29 μg/m3
Nitrogen Dioxide: 3.24 μg/m3
Sulphur Dioxide: 1.02 μg/m3
Ozone: 55.79 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 1:14 PM
Sunset: 8:35 PM
Daylight: 14 hrs 40 mins

Moonrise: 12:17 AM
Moon Transit: 12:00 AM
Moonset: 1:30 PM
Moon Phase: Last Quarter
Moon Illumination: 37.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:13 PM - 4:43 PM

Minor Periods

1:00 PM - 2:30 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, July 8, 2026

Weather Forecast

Conditions: Sunny

High Temperature: 63.6°F

Low Temperature: 55.7°F

Average Temperature: 58.8°F

Average Humidity: 80%

Precipitation: 0 in

Chance of Rain: 11%

Chance of Snow: 0%

Maximum Wind: 14.3 mph

UV Index: 5

Air Quality

AQI: 1 - Good

PM2.5: 10.18 μg/m3

PM10: 15.76 μg/m3

Carbon Monoxide: 93.79 μg/m3
Nitrogen Dioxide: 5.1 μg/m3
Sulphur Dioxide: 0.79 μg/m3
Ozone: 44.04 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 1:14 PM
Sunset: 8:35 PM
Daylight: 14 hrs 39 mins

Moonrise: 12:43 AM
Moon Transit: 7:35 AM
Moonset: 2:41 PM
Moon Phase: Last Quarter
Moon Illumination: 26.8%

Best Times for Fishing or Hunting

Major Periods

7:05 AM - 9:35 AM
3:02 PM - 5:32 PM

Minor Periods

2:11 PM - 3:41 PM
12:13 AM - 1:43 AM

Action Rating: 2 out of 5

Thursday, July 9, 2026

Weather Forecast

Conditions: Sunny

High Temperature: 65.5°F

Low Temperature: 56.6°F

Average Temperature: 60.3°F

Average Humidity: 79%

Precipitation: 0 in

Chance of Rain: 10%

Chance of Snow: 0%

Maximum Wind: 14.1 mph

UV Index: 5

Air Quality

AQI: 1 - Good

PM2.5: 11 μg/m3

PM10: 16.97 μg/m3

Carbon Monoxide: 100.58 μg/m3
Nitrogen Dioxide: 8.09 μg/m3
Sulphur Dioxide: 0.81 μg/m3
Ozone: 40.88 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 1:15 PM
Sunset: 8:34 PM
Daylight: 14 hrs 38 mins

Moonrise: 1:13 AM
Moon Transit: 8:27 AM
Moonset: 3:54 PM
Moon Phase: Last Quarter
Moon Illumination: 17.4%

Best Times for Fishing or Hunting

Major Periods

7:57 AM - 10:27 AM
3:56 PM - 6:26 PM

Minor Periods

3:24 PM - 4:54 PM
12:43 AM - 2:13 AM

Action Rating: 2 out of 5

Friday, July 10, 2026

Weather Forecast

Conditions: Sunny

High Temperature: 63.9°F

Low Temperature: 55.9°F

Average Temperature: 59.3°F

Average Humidity: 81%

Precipitation: 0 in

Chance of Rain: 11%

Chance of Snow: 0%

Maximum Wind: 15.9 mph

UV Index: 5

Air Quality

AQI: 1 - Good

PM2.5: 11.7 μg/m3

PM10: 18.43 μg/m3

Carbon Monoxide: 103.33 μg/m3
Nitrogen Dioxide: 9.22 μg/m3
Sulphur Dioxide: 0.72 μg/m3
Ozone: 46.17 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 1:15 PM
Sunset: 8:34 PM
Daylight: 14 hrs 37 mins

Moonrise: 1:51 AM
Moon Transit: 9:25 AM
Moonset: 5:10 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.7%

Best Times for Fishing or Hunting

Major Periods

8:55 AM - 11:25 AM
4:55 PM - 7:25 PM

Minor Periods

4:40 PM - 6:10 PM
1:21 AM - 2:51 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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Water Temperature of San Francisco Bay in San Francisco, CA

Current Water Temperature

Temperature Locations

Local Points of Interest

Nearby Water Temperatures

Weather for San Francisco, California

Current Weather

Five Day Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Beach Hazards Statement issued July 6 at 3:01AM PDT until July 10 at 5:00PM PDT by NWS San Francisco CA

Small Craft Advisory issued July 6 at 2:39AM PDT until July 8 at 9:00PM PDT by NWS San Francisco CA

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

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