High Surf Advisory — San Diego County Coastal Areas, CA, Orange County Coastal, CA 1:00 AM Coastal Flood Advisory — San Diego County Coastal Areas, CA, Orange County Coastal, CA 1:00 AM

San Clemente, California

Last updated: 9:02 AM CDT  ·  Refresh
24°C
Feels like 26°
Mostly Cloudy
▲ 29°  /  ▼ 22°
Wind
5 mph N
Humidity
76%
Dew Point
20°
Pressure
29.63 inHg
Visibility
10 mi
UV Index
1.5
Cloud Cover
66%
Sunrise
6:28 AM
Sunset
7:07 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: San Clemente is currently mostly cloudy at 24°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 783 J/kg) — isolated convective development possible. Sunrise: 6:28AM · Sunset: 7:07PM.

Alerts

High Surf Advisory
San Diego County Coastal Areas, CA, Orange County Coastal, CA
Expires 1:00 AM
Coastal Flood Advisory
San Diego County Coastal Areas, CA, Orange County Coastal, CA
Expires 1:00 AM
47 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
4%
8 AM
24°
4%
9 AM
26°
22%
10 AM
27°
4%
11 AM
28°
4%
12 PM
28°
4%
1 PM
29°
4%
2 PM
29°
4%
3 PM
29°
4%
4 PM
28°
3%
5 PM
28°
3%
6 PM
27°
3%
7 PM
27°
3%
8 PM
26°
3%
9 PM
26°
3%
10 PM
26°
3%
11 PM
25°
3%
12 AM
25°
3%
1 AM
24°
5%
2 AM
24°
5%
3 AM
24°
5%
4 AM
24°
5%
5 AM
24°
5%
6 AM
25°
9%
7-Day Forecast
Today
29° 22°
Mostly Cloudy.
Tue
28° 24°
Partly Cloudy.
Wed
30° 23°
Mostly Clear.
Thu
28° 22°
Mostly Clear.
Fri
26° 21°
Clear.
Sat
25° 19°
Clear.
Sun
26° 18°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 24° Mostly Cloudy 4% 5 mph N 76%
8 AM 24° Mostly Cloudy 4% 4 mph NNW 75%
9 AM 26° Mostly Cloudy 22% 4 mph NW 74%
10 AM 27° Mostly Cloudy 4% 5 mph NW 71%
11 AM 28° Mostly Cloudy 4% 7 mph NW 68%
12 PM 28° Partly Cloudy 4% 8 mph WNW 67%
1 PM 29° Partly Cloudy 4% 10 mph WNW 65%
2 PM 29° Partly Cloudy 4% 11 mph WNW 64%
3 PM 29° Partly Cloudy 4% 11 mph NW 63%
4 PM 28° Partly Cloudy 3% 11 mph NW 62%
5 PM 28° Mostly Cloudy 3% 11 mph NW 62%
6 PM 27° Mostly Cloudy 3% 10 mph NW 62%
7 PM 27° Mostly Cloudy 3% 9 mph NW 63%
8 PM 26° Mostly Cloudy 3% 8 mph NW 64%
9 PM 26° Overcast 3% 7 mph NNW 63%
10 PM 26° Overcast 3% 7 mph NNW 63%
11 PM 25° Overcast 3% 6 mph NNW 62%
12 AM 25° Overcast 3% 6 mph NNW 62%
1 AM 24° Mostly Cloudy 5% 5 mph NNW 61%
2 AM 24° Mostly Cloudy 5% 5 mph NNW 61%
3 AM 24° Mostly Cloudy 5% 5 mph NNW 61%
4 AM 24° Overcast 5% 5 mph NNW 60%
5 AM 24° Overcast 5% 5 mph NNW 60%
6 AM 25° Mostly Cloudy 9% 5 mph N 59%
15-Day Forecast
Today
9/7
Mostly Cloudy
4%
22°
29°
Tue
9/8
Partly Cloudy
12%
24°
28°
Wed
9/9
Mostly Clear
14%
23°
30°
Thu
9/10
Mostly Clear
7%
22°
28°
Fri
9/11
Clear
3%
21°
26°
Sat
9/12
Clear
3%
19°
25°
Sun
9/13
Clear
8%
18°
26°
Mon
9/14
Clear
18%
19°
26°
Tue
9/15
Clear
19%
19°
26°
Wed
9/16
Clear
21%
20°
26°
Thu
9/17
Clear
25%
19°
26°
Fri
9/18
Clear
3%
18°
25°
Sat
9/19
Clear
25%
18°
25°
Sun
9/20
Clear
25%
18°
25°
Mon
9/21
Clear
25%
18°
25°
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 8.4 µg/m³
O3
Ground-level ozone
42 AQI 46 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 47 Good 42 47
Wed 47 Good 46 47
Thu 47 Good 47 38
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 LCLLFCEL0°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 50 60 70 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE85 J/kg
MLCAPE107 J/kg
MUCAPE399 J/kg
SBCIN-494 J/kg
MLCIN-357 J/kg
Lifted Index-0.2
Kinematics
0–6 km Shear28 kt
0–1 km Shear5 kt
Eff. Shear28 kt
0–1 km SRH23
0–3 km SRH98
Eff. SRH124
Storm Motion283° @ 25 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.7
K-Index37.7
Thermo & Levels
PWAT1.95 in
0–3 km LR4.6 °C/km
700–500 LR6.1 °C/km
Total Totals48.1
LCL949 hPa
LFC621 hPa
EL341 hPa
Freezing Lvl14,862 ft