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Today | Weather | Saturday, January 3, 2026
Active Weather Warnings

Weather in Chula Vista, California

01:12 PM
Now
Cloudy Weather
68° F
Feels Like 68°
Precipitation 15 %
Wind 7 mph
UV Index (0 - 11+) 2
Humidity 69 %
Today
Rainy Weather
Day 68°
Night 57°
Precipitation 55 %
Wind 6 mph
UV Index (0 - 11+) 2

Chula Vista Weather Forecast Updated

20 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (January 3, 2025)
Cloudy Weather

Day

63°

Night

46°

Wind

4 mph

UV Index

3

Precipitation

40 %

Air Quality in Chula Vista

NOW
32 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.42 µg/m³
PM10 2.61 µg/m³
O3 0.035 ppm
NO2 0.2 ppb
SO2 0.1 ppb
CO 0.10 ppm
NH3 0 µg/m³
NO 0.06 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:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.5 – 1.42 µg/m³
PM10 – 2.61 µg/m³
O3 – 67.85 µg/m³
NO2 – 0.37 µg/m³
SO2 – 0.28 µg/m³
CO – 115.29 µg/m³
NH3 – 0 µg/m³
NO – 0.06 µg/m³
View Hourly Air Quality Forecast

Weather Alerts and Warnings for Chula Vista

Moderate Expected Likely

Beach Hazards Statement

Beach Hazards Statement issued January 3 at 4:00AM PST until January 5 at 10:00AM PST by NWS San Diego CA
Jan 3, 4:00 AM → Jan 5, 10:00 AM
WHAT: High astronomical tides in the mornings will result in
minor tidal overflow and local beach flooding. Additionally,
elevated surf of 4 to 6 feet with local sets to 7 feet Sunday
into Monday morning will increase the risk for tidal overflow.

WHERE: San Diego County coastal areas.

WHEN: Through Monday morning.

IMPACTS: Minor tidal overflow, beach flooding, and coastal
erosion most likely during times of high tides. Strong rip
currents and dangerous swimming conditions Sunday.

ADDITIONAL DETAILS: Predicted high tides at La Jolla: 7.0
feet at 814 AM Saturday, 6.8 feet at 901 AM Sunday, 6.4 feet
at 946 AM Monday.
+ Read More
Remain out of the water to avoid hazardous swimming conditions.
Updated: Jan 3, 12:51 PM Source: NWS Alert