Beach Hazards Statement — San Francisco, CA, Coastal North Bay Including Point Reyes National Seashore, CA, San Francisco Peninsula Coast, CA, Northern Monterey Bay, CA, Southern Monterey Bay and Big Sur Coast, CA 7:00 PM

San Francisco, California

Last updated: 6:23 PM CDT  ·  Refresh
18°C
Feels like 16°
Clear
▲ 20°  /  ▼ 13°
Wind
13 mph W
Humidity
74%
Dew Point
13°
Pressure
29.74 inHg
Visibility
9 mi
UV Index
7.7
Cloud Cover
7%
Sunrise
6:10 AM
Sunset
8:20 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: San Francisco is currently clear at 18°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:10AM · Sunset: 8:20PM.

Alerts

Beach Hazards Statement
San Francisco, CA, Coastal North Bay Including Point Reyes National Seashore, CA, San Francisco Peninsula Coast, CA, Northern Monterey Bay, CA, Southern Monterey Bay and Big Sur Coast, CA
Expires 7:00 PM
32 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
18°
5%
5 PM
20°
4%
6 PM
19°
4%
7 PM
18°
4%
8 PM
18°
5%
9 PM
16°
5%
10 PM
16°
5%
11 PM
15°
5%
12 AM
15°
6%
1 AM
14°
14%
2 AM
14°
14%
3 AM
14°
14%
4 AM
14°
14%
5 AM
13°
14%
6 AM
13°
15%
7 AM
14°
15%
8 AM
14°
15%
9 AM
15°
15%
10 AM
16°
3%
11 AM
18°
3%
12 PM
18°
3%
1 PM
21°
3%
2 PM
21°
3%
3 PM
21°
3%
7-Day Forecast
Today
20° 13°
Clear.
Thu
21° 13°
Fog.
Fri
23° 13°
Fog.
Sat
23° 13°
Haze.
Sun
26° 14°
Clear.
Mon
27° 14°
Clear.
Tue
27° 14°
Partly Cloudy.
TimeTempConditionsPrecipWindHumidity
Now 18° Clear 5% 13 mph W 74%
5 PM 20° Clear 4% 14 mph W 70%
6 PM 19° Clear 4% 13 mph W 73%
7 PM 18° Mostly Clear 4% 12 mph W 76%
8 PM 18° Mostly Clear 5% 10 mph WSW 80%
9 PM 16° Mostly Clear 5% 9 mph WSW 83%
10 PM 16° Mostly Clear 5% 9 mph WSW 86%
11 PM 15° Partly Cloudy 5% 8 mph SW 87%
12 AM 15° Partly Cloudy 6% 8 mph SW 88%
1 AM 14° Partly Cloudy 14% 8 mph SW 88%
2 AM 14° Partly Cloudy 14% 8 mph SW 88%
3 AM 14° Partly Cloudy 14% 8 mph SW 89%
4 AM 14° Fog 14% 8 mph SW 89%
5 AM 13° Fog 14% 8 mph SW 89%
6 AM 13° Fog 15% 7 mph SW 88%
7 AM 14° Fog 15% 7 mph SW 86%
8 AM 14° Fog 15% 6 mph SW 83%
9 AM 15° Haze 15% 7 mph SW 80%
10 AM 16° Haze 3% 7 mph WSW 76%
11 AM 18° Partly Cloudy 3% 8 mph WSW 73%
12 PM 18° Mostly Clear 3% 8 mph WSW 71%
1 PM 21° Mostly Clear 3% 9 mph WSW 70%
2 PM 21° Mostly Clear 3% 10 mph WSW 69%
3 PM 21° Mostly Clear 3% 10 mph WSW 69%
15-Day Forecast
Today
7/29
Clear
5%
13°
20°
Thu
7/30
Fog
15%
13°
21°
Fri
7/31
Fog
16%
13°
23°
Sat
8/1
Haze
13%
13°
23°
Sun
8/2
Clear
3%
14°
26°
Mon
8/3
Clear
3%
14°
27°
Tue
8/4
Partly Cloudy
3%
14°
27°
Wed
8/5
Mostly Cloudy
3%
14°
26°
Thu
8/6
Partly Cloudy
3%
14°
26°
Fri
8/7
Partly Cloudy
5%
14°
24°
Sat
8/8
Overcast
7%
14°
26°
Sun
8/9
Clear
3%
14°
27°
Mon
8/10
Clear
25%
14°
27°
Tue
8/11
Clear
3%
14°
27°
Wed
8/12
Clear
3%
14°
27°
32
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
32 AQI 5.9 µg/m³
O3
Ground-level ozone
19 AQI 21 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 32 Good 19 32
Fri 43 Good 20 43
Sat 49 Good 20 49
About the Air Quality Index
0–50 Good
51–100 Moderate
101–150 Unhealthy for Sensitive Groups
151–200 Unhealthy
201–300 Very Unhealthy
301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Wed Jul 29, 22:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE29 J/kg
MUCAPE0 J/kg
SBCIN-12355 J/kg
MLCIN0 J/kg
Lifted Index11.1
Kinematics
0–6 km Shear5 kt
0–1 km Shear8 kt
Eff. Shear—
0–1 km SRH35
0–3 km SRH31
Eff. SRH—
Storm Motion206° @ 15 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index1.8
Thermo & Levels
PWAT0.63 in
0–3 km LR1.8 °C/km
700–500 LR6.8 °C/km
Total Totals29.7
LCL935 hPa
LFC—
EL—
Freezing Lvl16,447 ft