San Antonio, TX Pollen Count Today

Live pollen forecast and air quality for San Antonio, Texas

šŸ“ San Antonio, TXToday Ā· Aug 29
8/10
Breathabilityā„¢ Score
Excellent breathing conditions for most plans today.
šŸŒ³Tree Pollen
None
šŸŒ±Grass Pollen
Low
šŸŒæWeed Pollen
Low
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Today's Pollen Levels in San Antonio

Grass pollen is slightly elevated at Low levels in San Antonio. Overall conditions are manageable for most people. With a Breathabilityā„¢ Score of 8, breathing conditions look good for most people.

How Today's Pollen May Affect You

Mild allergy sufferers
Most plans can stay the same today. Weed pollen is elevated and air quality is Good, so a quick rinse after time outside may help.
Moderate allergy sufferers
Conditions look manageable with routine precautions. Keep windows closed during peak pollen periods and shower after outdoor time.
Severe allergy sufferers
Even on a better day, keep your usual high-protection routine and avoid long exposure when pollen spikes.

5-Day Pollen Forecast

Today
Aug 29
Overall: Low
Tree: None
Grass: Low
Weed: Low
Wind: 15 mph (may spread pollen)
Rain: 74% (may wash pollen out)
Humidity: 66%
Sun
Aug 30
Overall: Very High
Tree: None
Grass: Moderate
Weed: Very High
Wind: 15 mph (may spread pollen)
Rain: 2%
Humidity: 55%
Mon
Aug 31
Overall: Very High
Tree: None
Grass: Moderate
Weed: Very High
Wind: 16 mph (may spread pollen)
Rain: 17%
Humidity: 58%
Tue
Sep 1
Overall: Very High
Tree: None
Grass: Moderate
Weed: Very High
Wind: 18 mph (may spread pollen)
Rain: 4%
Humidity: 56%
Wed
Sep 2
Overall: High
Tree: None
Grass: Moderate
Weed: High
Wind: 15 mph (may spread pollen)
Rain: 36%
Humidity: 57%

Tree Pollen in San Antonio Today

Tree pollen in San Antonio is None today. Tree pollen season typically runs from early spring through late May, peaking when deciduous trees release their pollen. On low days like today, outdoor activities are generally comfortable for most allergy sufferers.

Species Breakdown

Alder0 grains/mĀ³
Birch0 grains/mĀ³
Hazel0 grains/mĀ³

Grass Pollen in San Antonio Today

Grass pollen in San Antonio is Low today, reaching 1.19 grains/mĀ³. Grass is currently elevated. People with grass pollen sensitivity may notice nasal congestion and itchy eyes, especially during outdoor activities.

Common Symptoms

  • Itchy nose and eyes
  • Sneezing fits
  • Nasal congestion
  • Watery eyes
  • Coughing or wheezing for sensitive people

Species Breakdown

Weed Pollen in San Antonio Today

Weed pollen in San Antonio is Low today, reaching 4.90 grains/mĀ³. Ragweed and Mugwort are the primary driver. Ragweed is the most common allergen in this category, and elevated levels can trigger persistent symptoms even in people who are only mildly sensitive.

Common Symptoms

  • Persistent sneezing
  • Runny nose
  • Itchy eyes and throat
  • Nasal congestion
  • Fatigue from prolonged exposure

Species Breakdown

Mugwort0.24 grains/mĀ³

Air Quality in San Antonio Today

šŸŒ¬ļø
Air Quality
Good
Good

Air Pollutant Breakdown

PM2.5Good
8 Āµg/mĀ³
Tiny particles smaller than 2.5 micrometers that can reach deep into your lungs and bloodstream. High levels can affect breathing and heart health.
PM10Good
10 Āµg/mĀ³
Larger particles up to 10 micrometers, like dust or pollen. They can irritate your airways and worsen allergies or asthma.
Ozone (O3)Good
61 Āµg/mĀ³
Elevated levels irritate airways and can worsen asthma symptoms.
Nitrogen Dioxide (NO2)Good
4.5 Āµg/mĀ³
A respiratory irritant from vehicle exhaust that can trigger inflammation in sensitive airways.
Sulfur Dioxide (SO2)Good
2.1 Āµg/mĀ³
Even brief exposure can tighten airways, especially for people with asthma.
Carbon Monoxide (CO)Good
114 Āµg/mĀ³
High levels reduce oxygen delivery in the body, compounding breathing difficulty on high-pollen days.
See the full San Antonio air quality report ā†’

Weather in San Antonio Today

šŸŒ§ļø
Weather
81Ā°F
Patchy rain nearby
Humidity
85%
Wind
4 mph SE
Feels Like
87Ā°F
Pressure
1017 mb

Frequently Asked Questions

When pollen keeps winning, see an allergist

Pollen shifts week to week in San Antonio. If cetirizine (Zyrtec) or a steroid nasal spray stopped holding your symptoms down, or they drag on for months at a time, a board-certified allergist can test exactly what you react to and treat the cause instead of the symptom.

See 5 board-certified allergists in Texas ā†’

Get free daily pollen alerts

Morning alerts for San Antonio when pollen is high. One email a day, only when it matters.

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Allergy Guides and Resources

Seasonal pollen guides, daily city rankings, and practical tips for managing your allergies.

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Looking for more places? Browse popular cities or return to the Texas page.

San Antonio pollen by allergen

Oak pollenRagweed pollenMountain cedar pollenGrass pollen