Water Temperature of San Francisco Bay in San Francisco, CA
Current Water Temperature
Measurement Time: Thursday, February 19, 2026, 2:00 PM PST
Temperature Locations
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Local Points of Interest
The Embarcadero; Telegraph HillStation Name: SAN FRANCISCO BAY A PIER 17 A SAN FRANCISCO CA
Data Source: Water Data - usgc.gov
Elevation Above Sea Level: 23 feet
Nearest Address:
Pier 17
San Francisco, CA 94111
San Francisco County
GPS Coordinates: 37.80305, -122.3973083
Nearby Water Temperatures
San Francisco Bay, San Francisco, CA (2.1 mi)San Francisco Bay, San Francisco, CA (3.8 mi)
San Francisco Bay, Alameda, CA (5.7 mi)
Rodeo Pond, Sausalito, CA (7.2 mi)
Rodeo Lagoon, Sausalito, CA (7.4 mi)
Rodeo Lagoon, Sausalito, CA (7.7 mi)
San Francisco Bay, Richmond, CA (8.7 mi)
San Francisco Bay, San Rafael, CA (9.5 mi)
San Francisco Bay, San Mateo, CA (14.6 mi)
Carquinez Strait, Martinez, CA (21.8 mi)
Redwood Creek, Redwood City, CA (22.9 mi)
Pacific Ocean, San Francisco, CA (24.4 mi)
San Francisco Bay, Menlo Park, CA (25.6 mi)
Suisun Bay, Concord, CA (26.2 mi)
Coyote Creek, Alviso, CA (31.1 mi)
Weather for San Francisco, California
Current Weather

Five Day Weather Forecast

Thu
H: 55°F
L: 42°F

Fri
H: 50°F
L: 39°F

Sat
H: 57°F
L: 44°F

Sun
H: 59°F
L: 50°F

Mon
H: 61°F
L: 51°F
Air Quality
Nitrogen Dioxide: 11.85 μg/m3
Sulphur Dioxide: 3.75 μg/m3
Ozone: 71 μg/m3
Astronomical
Sun Transit: 12:23 AM
Sunset: 5:53 PM
Daylight: 10 hrs 59 mins
Moon Transit: 1:07 PM
Moonset: 8:37 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.2%
Best Times for Fishing or Hunting
Major Periods
12:37 AM - 3:07 PM12:37 AM - 3:07 PM
Minor Periods
8:07 PM - 9:37 PM7:29 AM - 8:59 AM
Action Rating: 2 out of 5
High Surf Advisory issued February 19 at 8:17AM PST until February 20 at 9:00AM PST by NWS San Francisco CA
Effective: Thu February 19, 2026, 8:17 AM
Expires: Thu February 19, 2026, 9:00 PM
* WHAT...Large breaking waves of 18 to 22 feet, with continuing increased risk of sneaker waves and strong rip currents. * WHERE...Pacific Coast beaches. * WHEN...Until 9 AM PST Friday. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion can be expected. Sneaker waves can sweep across the shoreline without warning, pulling people into the sea from rocks, jetties and beaches. Large breaking waves can overpower swimmers resulting in significant physical injury and increase the risk of drowning.
Swimmers should remain out of the water due to dangerous surf conditions.
High Surf Advisory issued February 19 at 8:37PM PST until February 20 at 9:00AM PST by NWS San Francisco CA
Effective: Thu February 19, 2026, 8:37 PM
Expires: Fri February 20, 2026, 9:00 AM
* WHAT...Large breaking waves of 18 to 22 feet, with continuing increased risk of sneaker waves and strong rip currents. * WHERE...Pacific Coast beaches. * WHEN...Until 9 AM PST Friday. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion can be expected. Sneaker waves can sweep across the shoreline without warning, pulling people into the sea from rocks, jetties and beaches. Large breaking waves can overpower swimmers resulting in significant physical injury and increase the risk of drowning.
Swimmers should remain out of the water due to dangerous surf conditions.
Extreme Cold Warning issued February 18 at 11:25PM PST until February 20 at 9:00AM PST by NWS San Francisco CA
Effective: Wed February 18, 2026, 11:25 PM
Expires: Thu February 19, 2026, 3:00 PM
* WHAT...Very cold conditions with sub-freezing temperatures in the mid-20s to low-30s expected. * WHERE...The East Bay Hills and Valleys, Interior Monterey County and the Santa Lucia Range, Most of San Benito County and the Cholame Hills in Southeast Monterey County, North Bay Interior Mountains, North Bay Interior Valleys, Eastern Santa Clara Hills, and Southern Salinas Valley/Arroyo Seco and Lake San Antonio. * WHEN...From 1 AM to 9 AM PST Friday. * IMPACTS...Cold conditions will be hazardous to sensitive populations such as unhoused individuals. Cold conditions may damage or kill sensitive crops, plants, and vegetation if appropriate precautions are not taken. Prolonged exposure to the cold conditions will lead to hypothermia for people, pets, and livestock.
Ensure portable heaters are working properly and are used correctly to avoid sparking a fire indoors. Do not use generators or grills inside as carbon monoxide poisoning can result. Check with your local, city, or county officials for information on available warming centers. Be sure to dress in layers if outdoors. Make sure that pets and livestock have adequate food, unfrozen water, and warmth. Cover or tend to sensitive crops, plants, and vegetation.
Cold Weather Advisory issued February 18 at 11:25PM PST until February 20 at 9:00AM PST by NWS San Francisco CA
Effective: Wed February 18, 2026, 11:25 PM
Expires: Thu February 19, 2026, 3:00 PM
* WHAT...Cold conditions with temperatures in the low-to-mid 30s expected. * WHERE...The Marin Hills, Western Sonoma County Hills, Northern Monterey Bay, The Santa Cruz Mountains, The Santa Clara Valley, Coastal North Bay Including Point Reyes National Seashore, San Francisco Bay Shoreline, and Northern Salinas Valley/Hollister Valley and Carmel Valley. * WHEN...From 1 AM to 9 AM PST Friday. * IMPACTS...Cold conditions will be hazardous to sensitive populations such as unhoused individuals. Prolonged exposure to the cold conditions will lead to hypothermia for people, pets, and livestock. Cold conditions may damage or kill sensitive crops, plants, and vegetation if appropriate precautions are not taken.
Ensure portable heaters are working properly and are used correctly to avoid sparking a fire indoors. Do not use generators or grills inside as carbon monoxide poisoning can result. Check with your local, city, or county officials for information on available warming centers. Be sure to dress in layers if outdoors. Make sure that pets and livestock have adequate food, unfrozen water, and warmth. Cover or tend to sensitive crops, plants, and vegetation.
Cold Weather Advisory issued February 19 at 2:08PM PST until February 20 at 9:00AM PST by NWS San Francisco CA
Effective: Thu February 19, 2026, 2:08 PM
Expires: Thu February 19, 2026, 10:00 PM
* WHAT...Cold conditions with temperatures in the low-to-mid 30s expected. * WHERE...The Marin Hills, Western Sonoma County Hills, Northern Monterey Bay, The Santa Cruz Mountains, The Santa Clara Valley, Coastal North Bay Including Point Reyes National Seashore, San Francisco Bay Shoreline, and Northern Salinas Valley/Hollister Valley and Carmel Valley. * WHEN...From 1 AM to 9 AM PST Friday. * IMPACTS...Cold conditions will be hazardous to sensitive populations such as unhoused individuals. Prolonged exposure to the cold conditions will lead to hypothermia for people, pets, and livestock. Cold conditions may damage or kill sensitive crops, plants, and vegetation if appropriate precautions are not taken.
Ensure portable heaters are working properly and are used correctly to avoid sparking a fire indoors. Do not use generators or grills inside as carbon monoxide poisoning can result. Check with your local, city, or county officials for information on available warming centers. Be sure to dress in layers if outdoors. Make sure that pets and livestock have adequate food, unfrozen water, and warmth. Cover or tend to sensitive crops, plants, and vegetation.
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.8 μg/m3
Sulphur Dioxide: 2.6 μg/m3
Ozone: 91.08 μg/m3
Astronomical
Sun Transit: 12:23 AM
Sunset: 5:53 PM
Daylight: 10 hrs 59 mins
Moon Transit: 1:07 PM
Moonset: 8:37 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.2%
Best Times for Fishing or Hunting
Major Periods
12:37 AM - 3:07 PM12:37 AM - 3:07 PM
Minor Periods
8:07 PM - 9:37 PM7:29 AM - 8:59 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 7.39 μg/m3
Sulphur Dioxide: 4.46 μg/m3
Ozone: 80 μg/m3
Astronomical
Sun Transit: 12:23 AM
Sunset: 5:54 PM
Daylight: 11 hrs 1 mins
Moon Transit: 12:00 AM
Moonset: 9:46 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.3%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM12:00 AM - 12:00 AM
Minor Periods
9:16 PM - 10:46 PM7:54 AM - 9:24 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 23.59 μg/m3
Sulphur Dioxide: 4.83 μg/m3
Ozone: 61.44 μg/m3
Astronomical
Sun Transit: 12:23 AM
Sunset: 5:55 PM
Daylight: 11 hrs 3 mins
Moon Transit: 3:48 PM
Moonset: 10:58 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.4%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM3:18 PM - 5:48 PM
Minor Periods
10:28 PM - 11:58 PM8:21 AM - 9:51 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 8.68 μg/m3
Sulphur Dioxide: 2.28 μg/m3
Ozone: 86.24 μg/m3
Astronomical
Sun Transit: 12:23 AM
Sunset: 5:56 PM
Daylight: 11 hrs 6 mins
Moon Transit: 4:41 PM
Moonset: 12:11 PM
Moon Phase: Waxing Crescent
Moon Illumination: 29.1%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM4:11 PM - 6:41 PM
Minor Periods
12:00 AM - 12:00 AM8:52 AM - 10:22 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 23.66 μg/m3
Sulphur Dioxide: 2.77 μg/m3
Ozone: 63.31 μg/m3
Astronomical
Sun Transit: 12:22 AM
Sunset: 5:57 PM
Daylight: 11 hrs 8 mins
Moon Transit: 5:37 PM
Moonset: 12:11 AM
Moon Phase: First Quarter
Moon Illumination: 39.8%
Best Times for Fishing or Hunting
Major Periods
12:09 AM - 2:39 AM5:07 PM - 7:37 PM
Minor Periods
9:30 AM - 11:00 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
