San Francisco, California Weather:
Active Weather Warnings
Monday, May 18, 2026
Sunny Weather
Day 73°
Night 55°
Precipitation 1 %
Wind 14 mph
UV Index (0 - 11+) 10
Weather Forecast History
Last Year's Weather on This Day (May 18, 2025)
Cloudy Weather

Day

68°

Night

54°

Wind

17 mph

UV Index

10

Precipitation

1 %

Weather Alerts and Warnings for

Moderate Expected Likely

Beach Hazards Statement

Beach Hazards Statement issued May 16 at 4:14AM PDT until May 18 at 9:00AM PDT by NWS San Francisco CA
May 16, 4:14 AM May 18, 9:00 AM
WHAT: Strong northerly winds will generate very rough
conditions at area beaches along with strong rip and longshore
currents.

WHERE: Greatest impacts will be along west facing beaches of
the Pacific coastline.

WHEN: Through Monday morning.

IMPACTS: Dangerous wind and wave conditions will impact
beaches and water activities such as swimming, surfing,
boating, and tide pooling. Rough seas can sweep up the beach
and over rocks and jetties, pulling people into a cold
turbulent ocean. Rip currents will be stronger than normal and
long shore currents can move people and items in the water
quickly away from the point of entry. Local beach and cliff
erosion is possible. Water temperatures will also cool rapidly
due to strong upwelling conditions during this time. Large
tidal swings can cutoff access to beach walkers.
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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.
Updated: May 16, 6:27 AM Source: NWS Alert