Today | Weather | Saturday, August 29, 2026
Active Weather Warnings

Weather in Santa Monica, California

01:55 AM
Now
Cloudy Night
73° F
Feels Like 75°
Precipitation 0 %
Wind 5 mph
Humidity 85 %
Today
Cloudy Weather
Day 82°
Night 72°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 9

Warning: High UV Index Today: 9

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Santa Monica Weather Forecast Updated

35 minutes ago
Last updated on

Air Quality in Santa Monica

NOW
154 AQI
Unhealthy air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 63.53 µg/m³
PM10 83.17 µg/m³
O3 0.042 ppm
NO2 0.9 ppb
SO2 0.2 ppb
CO 0.16 ppm
NH3 0.35 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:

Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects.

Show raw pollutant concentrations (µg/m³)
PM2.563.53 µg/m³
PM1083.17 µg/m³
O381.72 µg/m³
NO21.66 µg/m³
SO20.64 µg/m³
CO188.88 µg/m³
NH30.35 µg/m³
NO0 µg/m³

Weather Alerts and Warnings for Santa Monica

Moderate Expected Likely

Heat Advisory

Heat Advisory issued August 28 at 11:16AM PDT until August 29 at 8:00PM PDT by NWS Los Angeles/Oxnard CA
Aug 28, 8:00 PM Aug 29, 8:00 PM
WHAT: Hot daytime conditions with high temperatures between 88 and
98 common, hottest Friday. Warm overnight conditions will bring
less relief than usual.

WHERE: Most coastal areas of Los Angeles, Ventura, and southern
Santa Barbara Counties.

WHEN: For the Extreme Heat Warning, until 8 PM PDT this evening.
For the Heat Advisory, from 8 PM this evening to 8 PM PDT Saturday.

IMPACTS: There is a high risk for dangerous heat illness,
especially for sensitive groups like the very young, the very old,
those without air conditioning, and those active outdoors.
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Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Limit strenuous activities to early morning or evening hours. Take action when you see symptoms of heat exhaustion.
Updated: Aug 29, 1:19 AM Source: NWS Alert