Today | Weather | Sunday, February 1, 2026
Active Weather Warnings

Weather in San Francisco, California

06:58 AM
Now
Cloudy Night
46° F
Feels Like 46°
Precipitation 0 %
Wind 5 mph
Humidity 90 %
Today
Cloudy Weather
Day 63°
Night 45°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 2

San Francisco Weather Forecast Updated

44 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (February 1, 2025)
Rainy Weather

Day

59°

Night

55°

Wind

12 mph

UV Index

1

Precipitation

97 %

Air Quality in San Francisco

NOW
61 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 17 µg/m³
PM10 20.98 µg/m³
O3 0.037 ppm
NO2 1.4 ppb
SO2 0.4 ppb
CO 0.18 ppm
NH3 0 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.517 µg/m³
PM1020.98 µg/m³
O371.79 µg/m³
NO22.69 µg/m³
SO20.96 µg/m³
CO209.53 µg/m³
NH30 µg/m³
NO0 µg/m³

Weather Alerts and Warnings for San Francisco

Moderate Expected Likely

Beach Hazards Statement

Beach Hazards Statement issued February 1 at 4:29AM PST until February 2 at 9:00AM PST by NWS San Francisco CA
Feb 1, 4:29 AM Feb 2, 9:00 AM
WHAT: For the Beach Hazards Statement, an increased risk of
sneaker waves and strong rip currents with breaking waves of 14
to 19 feet. For the Coastal Flood Advisory, up to 1.2 ft of
inundation above ground level is possible in low-lying areas
near shorelines and tidal waterways.

WHERE: San Francisco, the Monterey Bay and Big Sur Coast.

WHEN: For the Coastal Flood Advisory, until noon PST Sunday.
For the Beach Hazards Statement, through 9 AM PST Monday
morning.

IMPACTS: Flooding of lots, parks, and roads with only
isolated road closures expected. Dangerous conditions are
forecast along the shoreline. Hazards include sneaker waves,
strong rip currents, and large breaking waves.

ADDITIONAL DETAILS: At the San Francisco tidal gauge, high
tide is expected to be: 1.2 ft above normal (6.96 ft MLLW) at
10:22 AM Sunday 2/1. These predictions include up to 0.3 ft of
storm surge from an incoming moderate to long period swell
that will enhance the astronomical tide and flooding threat.
High tide timing varies up to 90 minutes earlier or later
along the Pacific Coast and through the San Francisco Bay,
respectively.
+ Read More
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. 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: Feb 1, 6:14 AM Source: NWS Alert
Minor Expected Likely

Coastal Flood Advisory

Coastal Flood Advisory issued February 1 at 4:29AM PST until February 1 at 12:00PM PST by NWS San Francisco CA
Feb 1, 4:29 AM Feb 1, 12:00 PM
WHAT: For the Beach Hazards Statement, an increased risk of
sneaker waves and strong rip currents with breaking waves of 14
to 19 feet. For the Coastal Flood Advisory, up to 1.2 ft of
inundation above ground level is possible in low-lying areas
near shorelines and tidal waterways.

WHERE: San Francisco, the Monterey Bay and Big Sur Coast.

WHEN: For the Coastal Flood Advisory, until noon PST Sunday.
For the Beach Hazards Statement, through 9 AM PST Monday
morning.

IMPACTS: Flooding of lots, parks, and roads with only
isolated road closures expected. Dangerous conditions are
forecast along the shoreline. Hazards include sneaker waves,
strong rip currents, and large breaking waves.

ADDITIONAL DETAILS: At the San Francisco tidal gauge, high
tide is expected to be: 1.2 ft above normal (6.96 ft MLLW) at
10:22 AM Sunday 2/1. These predictions include up to 0.3 ft of
storm surge from an incoming moderate to long period swell
that will enhance the astronomical tide and flooding threat.
High tide timing varies up to 90 minutes earlier or later
along the Pacific Coast and through the San Francisco Bay,
respectively.
+ Read More
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. 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: Feb 1, 6:14 AM Source: NWS Alert