Pollen count in San Antonio today
Pollen in San Antonio, TX is Moderate (3 of 5) on Thu Nov 5: ragweed Moderate (3/5), tree Very Low (1/5), grass Very Low (1/5).
5-day pollen forecast
| Day | Tree | Grass | Ragweed | Weed |
|---|---|---|---|---|
| Thu Nov 5 | Very Low | Very Low | Moderate | None |
| Fri Nov 6 | Very Low | Very Low | Moderate | None |
| Sat Nov 7 | Very Low | Very Low | Moderate | None |
| Sun Nov 8 | Very Low | Very Low | Moderate | None |
| Mon Nov 9 | Very Low | None | Moderate | None |
Scale: Universal Pollen Index, 0 None · 1 Very Low · 2 Low · 3 Moderate · 4 High · 5 Very High. What the numbers mean.
Plants in the air in San Antonio this week

Season: Two distinct seasons, late winter to early spring, and late summer to fall (species dependent).

Season: Late spring, summer.
Cross-reactions: Plantain (Plantago) pollen. In addition, there may be a higher risk for food allergies like melons, oranges, tomatoes, peanuts, soy, potato, and other legumes.

Season: Late summer, fall.
Cross-reactions: Mugwort and Goldenrod as well as daisies such as Sunflower, Dandelion, and Chamomile.
What to do today
Because ragweed is Moderate:
- It's important to shower and wash your hair after spending a lot of time outdoors.
- When spending time outside, use sunglasses and a cap to keep pollen out of your face and eyes.
- Wash clothes worn outdoors to remove any remnants of pollen grains.
- If possible, wear glasses instead of contact lenses.
When is allergy season in San Antonio?
San Antonio follows the typical pattern for Texas and the South Central US. Dates move a few weeks with each year's weather.
| Pollen | Typical season | Notes |
|---|---|---|
| Tree | December to April | Mountain cedar (Ashe juniper) causes "cedar fever" from December to February, mainly in central Texas. Oak follows from February to April. |
| Grass | April to October | Bermuda and Johnson grass give a long season. |
| Ragweed | August to November | Ragweed and other weeds are strong across the region. |
Quietest time: Short and not every year: late November, before cedar starts.
Get a pollen alert for San Antonio
Pollenary is a free iPhone app. Type ZIP 78205 (or your own), tick the pollen that bothers you, and it sends one push each morning when that pollen reaches your level, with the plants named. No account and no location tracking.
Questions
What is the pollen count in San Antonio today?
Pollen in San Antonio, TX is Moderate (3 of 5) on Thu Nov 5: ragweed Moderate (3/5), tree Very Low (1/5), grass Very Low (1/5).
When is allergy season in San Antonio?
In Texas and the South Central US the typical seasons are: Tree: December to April; Grass: April to October; Ragweed: August to November. The quiet time is short and not every year: late November, before cedar starts. Exact dates move with the weather each year.
Which pollen is in the air in San Antonio right now?
Today: Ragweed (ragweed), Elm (tree), Juniper (tree), Grasses (grass).
How can I get a pollen alert for San Antonio?
Pollenary sends a free morning push when the pollen you choose (tree, grass, ragweed, weed or mold) reaches your level in San Antonio. It needs no account; you type ZIP 78205 or any other ZIP.
Nearby cities
Pollen data by Google (Universal Pollen Index, 0–5). Pollen levels are a forecast, not a medical measurement. Pollenary is not a medical device and does not diagnose or treat any condition. Talk to a doctor about your allergies.