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 1:00 AM

San Francisco, California

Last updated: 9:03 AM CDT  ·  Refresh
58°F
Feels like 58°
Mostly Clear
▲ 76°  /  ▼ 56°
Wind
2 mph SSE
Humidity
87%
Dew Point
54°
Pressure
29.85 inHg
Visibility
10 mi
UV Index
1.0
Cloud Cover
25%
Sunrise
6:44 AM
Sunset
7:29 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: San Francisco is currently mostly clear at 58°F. Dry conditions are expected through the next 24 hours. Sunrise: 6:44AM · Sunset: 7:29PM.

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 1:00 AM
47 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
58°
17%
8 AM
58°
5%
9 AM
61°
7%
10 AM
64°
3%
11 AM
66°
3%
12 PM
69°
3%
1 PM
71°
3%
2 PM
76°
3%
3 PM
75°
3%
4 PM
73°
3%
5 PM
71°
3%
6 PM
69°
3%
7 PM
68°
7%
8 PM
67°
6%
9 PM
66°
6%
10 PM
64°
6%
11 PM
63°
6%
12 AM
63°
6%
1 AM
63°
16%
2 AM
62°
16%
3 AM
62°
16%
4 AM
61°
16%
5 AM
61°
16%
6 AM
61°
17%
7-Day Forecast
Today
76° 56°
Mostly Clear.
Tue
79° 60°
Fog.
Wed
86° 66°
Partly Cloudy.
Thu
79° 62°
Partly Cloudy.
Fri
76° 59°
Clear.
Sat
74° 59°
Clear.
Sun
77° 58°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 58° Mostly Clear 17% 2 mph SSE 87%
8 AM 58° Clear 5% 3 mph SE 84%
9 AM 61° Mostly Clear 7% 2 mph SE 76%
10 AM 64° Mostly Clear 3% 2 mph E 69%
11 AM 66° Clear 3% 2 mph ENE 63%
12 PM 69° Clear 3% 2 mph NE 59%
1 PM 71° Clear 3% 2 mph NW 55%
2 PM 76° Clear 3% 5 mph WNW 52%
3 PM 75° Clear 3% 8 mph W 56%
4 PM 73° Clear 3% 10 mph W 60%
5 PM 71° Clear 3% 12 mph W 65%
6 PM 69° Mostly Clear 3% 10 mph W 67%
7 PM 68° Mostly Clear 7% 9 mph W 69%
8 PM 67° Mostly Clear 6% 7 mph W 70%
9 PM 66° Mostly Clear 6% 5 mph W 72%
10 PM 64° Mostly Clear 6% 4 mph WSW 74%
11 PM 63° Fog 6% 4 mph SW 76%
12 AM 63° Fog 6% 4 mph SW 77%
1 AM 63° Fog 16% 4 mph SW 78%
2 AM 62° Fog 16% 4 mph SW 79%
3 AM 62° Fog 16% 4 mph SW 79%
4 AM 61° Fog 16% 4 mph SW 80%
5 AM 61° Fog 16% 3 mph SW 80%
6 AM 61° Fog 17% 2 mph SW 79%
15-Day Forecast
Today
9/7
Mostly Clear
17%
56°
76°
Tue
9/8
Fog
17%
60°
79°
Wed
9/9
Partly Cloudy
3%
66°
86°
Thu
9/10
Partly Cloudy
3%
62°
79°
Fri
9/11
Clear
3%
59°
76°
Sat
9/12
Clear
3%
59°
74°
Sun
9/13
Clear
3%
58°
77°
Mon
9/14
Clear
3%
59°
76°
Tue
9/15
Clear
3%
59°
76°
Wed
9/16
Clear
3%
59°
75°
Thu
9/17
Clear
25%
57°
80°
Fri
9/18
Clear
3%
57°
79°
Sat
9/19
Clear
25%
57°
79°
Sun
9/20
Clear
3%
57°
81°
Mon
9/21
Clear
25%
58°
82°
47
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
47 AQI 8.5 µg/m³
O3
Ground-level ozone
27 AQI 30 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 47 Good 27 47
Wed 54 Moderate 32 54
Thu 55 Moderate 35 55
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 Mon Sep 7, 11:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE29 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index13.2
Kinematics
0–6 km Shear20 kt
0–1 km Shear4 kt
Eff. Shear—
0–1 km SRH-13
0–3 km SRH33
Eff. SRH—
Storm Motion354° @ 16 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-3.8
Thermo & Levels
PWAT0.59 in
0–3 km LR2.5 °C/km
700–500 LR5.3 °C/km
Total Totals28.0
LCL984 hPa
LFC—
EL—
Freezing Lvl15,098 ft