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Gathering pollen, air quality, and weather data for you.
Pollen Level
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Air Quality
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San Rafael's allergy season varies with proximity to the coast. Coastal breezes help, but residents of San Rafael, CA can still experience significant pollen from February through October, especially during dry, warm spells.
Right now: May transitions to grass pollen in San Rafael. 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 Rafael 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
Tree pollen is moderate and wind may stir it up. Sensitive people should take light precautions.
Air quality: AQI is 33 (good).
Best hours: 16:00-17:00, 19:00
Weather
65°F
Sunny · 60% humidity · 11 mph wind
~5 grains/m³