San Antonio, TX Oak Pollen
Oak pollen in San Antonio usually peaks around March, reaching Very High at its worst. San Antonio sits at the southern edge of the Hill Country, so its allergy year is bookended by two heavy hitters: mountain cedar in winter and ragweed in fall, with oak and grass filling the spring.
Live oak and red oak take over in March and April, coating patios and cars in fine yellow pollen across the city.
Oak in San Antonio today
Monday, July 27, 2026
Oak pollen by month in San Antonio
How oak usually runs across the year. The current month is outlined.
Managing oak season in San Antonio
If oak is your trigger, start a daily antihistamine like cetirizine (Zyrtec) or loratadine (Claritin) a week or two before the March peak, rather than waiting for symptoms. Keep windows closed on high-count mornings, shower and change clothes after time outside, and run the AC on recirculate in the car.
When symptoms don't ease with over-the-counter medicine, an allergist in Texas can test whether oak is really what you react to and talk through longer-term options like allergy shots.
Sources
More pollen in San Antonio
- San Antonio ragweed pollen — peaks September.
- San Antonio mountain cedar pollen — peaks January.
- San Antonio grass pollen — peaks May.
- San Antonio pollen calendar — every allergen, month by month.
- San Antonio pollen count today — live tree, grass, and weed levels with a 5-day forecast.
- Texas pollen season — the statewide calendar and other cities.
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Sign up for free alertsSeasonal pattern based on Texas pollen data and local sources. Today's reading updated daily. MyPollenPal