Today | Weather | Saturday, June 6, 2026
Active Weather Warnings

Weather in San Francisco, California

02:56 AM
Now
Cloudy Night
54° F
Feels Like 46°
Precipitation 49 %
Wind 14 mph
Humidity 81 %
Today
Cloudy Weather
Day 64°
Night 50°
Precipitation 2 %
Wind 18 mph
UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

San Francisco Weather Forecast Updated

5 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (June 6, 2025)
Cloudy Weather

Day

66°

Night

55°

Wind

11 mph

UV Index

11

Precipitation

0 %

Air Quality in San Francisco

NOW
36 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.42 µg/m³
PM10 15.17 µg/m³
O3 0.039 ppm
NO2 0.3 ppb
SO2 0.3 ppb
CO 0.09 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 considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.53.42 µg/m³
PM1015.17 µg/m³
O377.36 µg/m³
NO20.49 µg/m³
SO20.88 µg/m³
CO108.55 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 June 5 at 5:49AM PDT until June 6 at 9:00AM PDT by NWS San Francisco CA
Jun 5, 5:49 AM Jun 6, 9:00 AM
WHAT: Increased risk of sneaker waves and strong rip currents
due to long period southwesterly swell.

WHERE: Beaches along the Pacific Coast, especially southwest
facing beaches.

WHEN: From late tonight through Saturday morning.

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.
+ Read More
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: Jun 6, 2:51 AM Source: NWS Alert