Pollen Level
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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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San Luis Obispo's allergy season varies with proximity to the coast. Coastal breezes help, but residents of San Luis Obispo, CA can still experience significant pollen from February through October, especially during dry, warm spells.
Right now: May transitions to grass pollen in San Luis Obispo. 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 San Luis Obispo 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
Tree pollen is high (250 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
250 grains/m³ · Tree
Air Quality
AQI 54
Moderate
Weather
58°F
Sunny · 62% humidity · 2 mph wind
~250 grains/m³
~250 grains/m³
~5 grains/m³