Station Name: SAN FRANCISCO BAY 2.8 MI N OF SAN MATEO BRIDGE CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
San Francisco Bay
San Mateo, CA 94401
San Mateo County

GPS Coordinates: 37.63078889, -122.2432

Nearby Water Temperatures

Beach Hazards Statement issued January 11 at 12:01PM PST until January 12 at 7:00PM PST by NWS San Francisco CA

Effective: Sun January 11, 2026, 12:01 PM
Expires: Sun January 11, 2026, 10:00 PM

* WHAT...Hazardous beach conditions expected with increased risk for rip currents, sneaker waves, and larger shore break. * WHERE...Pacific Coast from Sonoma county to Monterey county. * WHEN...From Sunday afternoon through Monday evening. * IMPACTS...Dangerous conditions are forecast along the shoreline. Hazards include sneaker waves, strong rip currents, and large breaking waves.

Conditions are favorable for a heightened risk of sneaker waves. Stay off the rocks and NEVER turn your back on the ocean! 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.

Beach Hazards Statement issued January 11 at 9:49PM PST until January 12 at 7:00PM PST by NWS San Francisco CA

Effective: Sun January 11, 2026, 9:49 PM
Expires: Mon January 12, 2026, 6:00 AM

* WHAT...Hazardous beach conditions expected with increased risk for rip currents, sneaker waves, and larger shore break. * WHERE...Pacific Coast from Sonoma county to Monterey county. * WHEN...From Sunday afternoon through Monday evening. * IMPACTS...Dangerous conditions are forecast along the shoreline. Hazards include sneaker waves, strong rip currents, and large breaking waves.

Conditions are favorable for a heightened risk of sneaker waves. Stay off the rocks and NEVER turn your back on the ocean! 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.

Cold Weather Advisory issued January 11 at 11:36AM PST until January 12 at 9:00AM PST by NWS San Francisco CA

Effective: Sun January 11, 2026, 11:36 AM
Expires: Sun January 11, 2026, 8:00 PM

* WHAT...Cold conditions with temperatures in the low to mid 30s expected. * WHERE...Most of San Benito County and the Cholame Hills in Southeast Monterey County, North Bay Interior Valleys, East Bay Interior Valleys, and Southern Salinas Valley/Arroyo Seco and Lake San Antonio. * WHEN...From 1 AM to 9 AM PST Monday. * 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. * ADDITIONAL DETAILS...Temperatures in the far southern Salinas Valley (Bradley) and in the vicinity of Fort Hunter Liggett (Monterey County) will be locally colder with temperatures in the upper 20s to low 30s.

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 January 11 at 8:00PM PST until January 12 at 9:00AM PST by NWS San Francisco CA

Effective: Sun January 11, 2026, 8:00 PM
Expires: Mon January 12, 2026, 9:00 AM

* WHAT...Cold conditions with temperatures in the low to mid 30s expected. * WHERE...Most of San Benito County and the Cholame Hills in Southeast Monterey County, North Bay Interior Valleys, East Bay Interior Valleys, and Southern Salinas Valley/Arroyo Seco and Lake San Antonio. * WHEN...From 1 AM to 9 AM PST Monday. * 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. * ADDITIONAL DETAILS...Temperatures in the far southern Salinas Valley (Bradley) and in the vicinity of Fort Hunter Liggett (Monterey County) will be locally colder with temperatures in the upper 20s to low 30s.

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.