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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: July grass pollen tapers in San Luis Obispo. Early wildfire smoke can compound breathing issues.
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.
Open another nearby forecast without going back to the map.
YES
Conditions are manageable, but Grass pollen is moderate and air quality is fair. Most people can head out with light precautions.
Pollen: Grass pollen is medium today at 50 grains/m³.
Best hours: 11:00-13:00
Weather
53°F
Overcast · 86% humidity · 3 mph wind
~5 grains/m³
~5 grains/m³