Today | Weather | Tuesday, July 21, 2026

Active Weather Warnings

High Surf Advisory

Weather in Oxnard, California

01:15 AM

Now

68° F

Feels Like 66°

Precipitation 0 %

Wind 6 mph

Humidity 81 %

Today

Day 77°

Night 64°

Precipitation 0 %

Wind 10 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.

Oxnard Weather Forecast Updated

Last updated on July 21, 2026 at 12:01 AM

Weather Forecast History

Last Year's Weather on This Day (July 21, 2025)

Day

72°

Night

61°

Wind

6 mph

Precipitation

1 %

Air Quality in Oxnard

NOW

36 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 4.24 µg/m³

PM₁₀ 11.07 µg/m³

O₃ 0.039 ppm

NO₂ 0.5 ppb

SO₂ 0.3 ppb

CO 0.07 ppm

NH₃ 0 µg/m³

NO 0 µg/m³

PM_2.5 – 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)

PM_2.5 – 4.24 µg/m³

PM₁₀ – 11.07 µg/m³

O₃ – 75.65 µg/m³

NO₂ – 1.03 µg/m³

SO₂ – 0.79 µg/m³

CO – 84.17 µg/m³

NH₃ – 0 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Oxnard

Minor Expected Likely

High Surf Advisory

High Surf Advisory issued July 20 at 8:13PM PDT until July 21 at 11:00PM PDT by NWS Los Angeles/Oxnard CA

Jul 20, 8:13 PM → Jul 21, 11:00 PM

WHAT: Large breaking waves building to 3 to 6 feet with sets to
7 feet. Dangerous rip currents.

WHERE: Catalina and Santa Barbara Islands, Ventura County
Beaches, Malibu Coast and Los Angeles County Beaches.

WHEN: Until 11 PM PDT Tuesday, peaking tonight through Tuesday
morning.

IMPACTS: There is an increased risk for ocean drowning. Rip
currents can pull swimmers and surfers out to sea. Large
breaking waves can cause injury, wash people off beaches and
rocks, and capsize small boats near shore.

ADDITIONAL DETAILS: Highest surf will be focused across south
facing beaches due to a southerly swell produced by Tropical
Storm Elida. Additional Beach Hazards Statements or High Surf
Advisories will likely be needed through the rest of the week
due to a series of incoming southerly swells.

+ Read More

Remain out of the water due to dangerous surf conditions, or stay near occupied lifeguard towers. Rock jetties can be deadly in such conditions, stay off the rocks.

Updated: Jul 21, 12:01 AM Source: NWS Alert