Today | Weather | Saturday, May 16, 2026

Active Weather Warnings

Beach Hazards Statement

Weather in Carlsbad, California

08:11 AM

Now

64° F

Feels Like 64°

Precipitation 0 %

Wind 5 mph

UV Index (0 - 11+) 0

Humidity 75 %

Today

Day 72°

Night 57°

Precipitation 4 %

Wind 9 mph

UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

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.

Carlsbad Weather Forecast Updated

41 minutes ago

Last updated on May 16, 2026 at 7:29 AM

Weather Forecast History

Last Year's Weather on This Day (May 16, 2025)

Day

68°

Night

54°

Wind

8 mph

UV Index

Precipitation

1 %

Air Quality in Carlsbad

NOW

44 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 5.6 µg/m³

PM₁₀ 22.28 µg/m³

O₃ 0.047 ppm

NO₂ 0.2 ppb

SO₂ 0.3 ppb

CO 0.10 ppm

NH₃ 0 µg/m³

NO 0.01 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 – 5.6 µg/m³

PM₁₀ – 22.28 µg/m³

O₃ – 93.1 µg/m³

NO₂ – 0.43 µg/m³

SO₂ – 0.71 µg/m³

CO – 118.61 µg/m³

NH₃ – 0 µg/m³

NO – 0.01 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Carlsbad

Moderate Expected Likely

Beach Hazards Statement

Beach Hazards Statement issued May 16 at 2:06AM PDT until May 18 at 9:00AM PDT by NWS San Diego CA

May 16, 6:00 PM → May 18, 9:00 AM

WHAT: Northwest swell from 290 degrees with a period of 9 to
10 seconds will generate surf of 4 to 6 ft, with local sets to
7 ft.

WHERE: San Diego County Coastal Areas and Orange County
Coastal Areas.

WHEN: From Saturday evening through Monday morning.

IMPACTS: Hazardous swimming conditions and minor tidal
overflow.

ADDITIONAL DETAILS: High tides of 6.5 to 7 ft combined with
elevated may result in minor tidal overflow for beach parking
lots and boardwalks. Highest surf will be on west/northwest
facing beaches.

+ Read More

Remain out of the water to avoid hazardous swimming conditions.

Updated: May 16, 7:29 AM Source: NWS Alert