San Antonio, TX Mountain cedar Pollen
Mountain cedar pollen in San Antonio usually peaks around January, 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.
Mountain cedar (Ashe juniper) drifts in from the Hill Country to the north and west and peaks from late December into February. San Antonio catches some of the earliest heavy cedar in the state.
Mountain cedar in San Antonio today
Monday, July 27, 2026
Mountain cedar isn't picked up by the live pollen sensors near San Antonio, so there's no daily number for it. Based on the season, July is typically None for Mountain cedar.
See San Antonio's full pollen report and 5-day forecast →Mountain cedar pollen by month in San Antonio
How mountain cedar usually runs across the year. The current month is outlined.
Managing mountain cedar season in San Antonio
If mountain cedar is your trigger, start a daily antihistamine like cetirizine (Zyrtec) or loratadine (Claritin) a week or two before the January 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 mountain cedar is really what you react to and talk through longer-term options like allergy shots.
Sources
More pollen in San Antonio
- San Antonio oak pollen — peaks March.
- San Antonio ragweed pollen — peaks September.
- 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