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Air Quality
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Gathering pollen, air quality, and weather data for you.
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Pollen Level
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Air Quality
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Gathering pollen, air quality, and weather data for you.
Gathering pollen, air quality, and weather data for you.
Pollen Level
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Air Quality
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Weather
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Chula Vista's allergy season varies with proximity to the coast. Coastal breezes help, but residents of Chula Vista, CA can still experience significant pollen from February through October, especially during dry, warm spells.
Right now: May transitions to grass pollen in Chula Vista. Inland areas see higher counts than coastal neighborhoods.
Spring
Feb – May
Tree pollen starts early — alder, birch, and oak are primary triggers.
Summer
May – Jul
Grass pollen peaks. Inland valleys see significantly higher counts than the coast.
Fall
Aug – Oct
Ragweed and sagebrush in drier areas. Coastal cities see lower counts.
Ocean breezes near Chula Vista can help clear pollen, but inland valleys trap allergens. Wildfire season also degrades air quality significantly. PollenTracker monitors both pollen and AQI to give you the full picture.
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CAUTION
Limit exposure
Grass pollen is high (120 grains/m³) and air quality is fair. Take allergy medication and aim for the safest outdoor window.
Lower-risk hours: 11:00-13:00
Pollen Level
High
120 grains/m³ · Grass
Air Quality
AQI 56
Moderate
Weather
61°F
Cloudy · 87% humidity · 5 mph wind
~120 grains/m³
~50 grains/m³
~5 grains/m³