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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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San Diego's allergy season varies with proximity to the coast. Coastal breezes help, but residents of San Diego, CA can still experience significant pollen from February through October, especially during dry, warm spells.
Right now: June is peak grass pollen in San Diego. Dry conditions accelerate pollen release.
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 Diego 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
Grass pollen is moderate with calm conditions. Most people can head out comfortably.
Air quality: AQI is 45 (good).
Best hours: 18:00-20:00
Weather
71°F
Cloudy · 63% humidity · 9 mph wind
~5 grains/m³
~5 grains/m³