What is the pollen count in San Diego today?

Today's pollen levels in San Diego: Tree pollen is None, Grass pollen is Moderate, Weed pollen is Low. Grass pollen is the dominant type right now, driven by Grass.

What does a Moderate pollen count mean in San Diego?

A Moderate pollen count means levels are noticeable. People with pollen sensitivities may experience mild symptoms like sneezing or itchy eyes, especially during extended time outdoors.

What are the main allergy triggers in San Diego right now?

The primary allergy triggers in San Diego today are Grass (Grass). These pollen types are at elevated levels and are most likely to cause symptoms for sensitive people.

What should allergy sufferers do when pollen is Moderate in San Diego?

With Moderate pollen in San Diego, basic precautions help: keep windows closed during peak hours, rinse off after outdoor time, and monitor your symptoms. Most activities can continue with awareness.

Does weather affect pollen levels in San Diego?

Yes, weather directly affects pollen levels in San Diego. Wind spreads pollen farther, rain washes it from the air, and humidity can either trap or disperse particles.

San Diego, CA Pollen Count Today

Name: Pollen Data for San Diego
Creator: MyPollenPal
Keywords: pollen, air quality, allergies, forecast

Live pollen forecast and air quality for San Diego, California

📍 San Diego, CAToday · Jul 15

4/10

Breathability™ Score

Mixed conditions - sensitive groups may want extra precautions.

🌳Tree Pollen

None

🌱Grass Pollen

Moderate

🌿Weed Pollen

Low

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Today's Pollen Levels in San Diego

Grass pollen is slightly elevated at Moderate levels in San Diego. Overall conditions are manageable for most people. With a Breathability™ Score of 4, conditions are mixed and may vary through the day.

Breathability™ Score is 4/10
Tree pollen is None, led by Alder and Birch
Grass pollen is Moderate, led by Grass
Weed pollen is Low, led by Mugwort and Ragweed
Air quality is Moderate today

Yesterday's Pollen in San Diego

→Tree pollen: None yesterday, None today

→Grass pollen: Moderate yesterday, Moderate today

→Weed pollen: Low yesterday, Low today

How Today's Pollen May Affect You

Mild allergy sufferers

You may notice mild irritation at peak times. Grass pollen is elevated; consider shorter midday exposure and keep water handy.

Moderate allergy sufferers

Plan around peak pollen windows. Try errands early or later, and consider a mask in high-traffic outdoor areas.

Severe allergy sufferers

Use high-protection habits today: shorter trips, cleaner indoor air, and reduced exposure during peak pollen hours.

5-Day Pollen Forecast

Today

Jul 15

Overall: Moderate

Tree: None

Grass: Moderate

Weed: Low

Wind: 10 mph

Rain: 3%

Humidity: 62%

Thu

Jul 16

Overall: Moderate

Tree: None

Grass: Moderate

Weed: Low

Wind: 11 mph

Rain: 4%

Humidity: 63%

Fri

Jul 17

Overall: Moderate

Tree: None

Grass: Moderate

Weed: Low

Wind: 13 mph

Rain: 5%

Humidity: 66%

Sat

Jul 18

Overall: Moderate

Tree: None

Grass: Moderate

Weed: Low

Wind: 11 mph

Rain: 5%

Humidity: 65%

Sun

Jul 19

Overall: Moderate

Tree: None

Grass: Moderate

Weed: Low

Wind: 12 mph

Rain: 5%

Humidity: 65%

Tree Pollen in San Diego Today

Tree pollen in San Diego 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/m³

Birch0 grains/m³

Hazel0 grains/m³

Oak0 grains/m³

Grass Pollen in San Diego Today

Grass pollen in San Diego is Moderate today, reaching 63.03 grains/m³. 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

Grass63.03 grains/m³

Weed Pollen in San Diego Today

Weed pollen in San Diego is Low today, reaching 18.30 grains/m³. Mugwort and Ragweed 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

Mugwort18.30 grains/m³

Ragweed0 grains/m³

Air Quality in San Diego Today

🌬️

Air Quality

Moderate

Air Pollutant Breakdown

PM2.5Moderate

16 µg/m³

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

24 µg/m³

Larger particles up to 10 micrometers, like dust or pollen. They can irritate your airways and worsen allergies or asthma.

Ozone (O3)Good

92 µg/m³

Elevated levels irritate airways and can worsen asthma symptoms.

Nitrogen Dioxide (NO2)Good

3.3 µg/m³

A respiratory irritant from vehicle exhaust that can trigger inflammation in sensitive airways.

Sulfur Dioxide (SO2)Good

1.3 µg/m³

Even brief exposure can tighten airways, especially for people with asthma.

Carbon Monoxide (CO)Good

97 µg/m³

High levels reduce oxygen delivery in the body, compounding breathing difficulty on high-pollen days.

See the full San Diego air quality report →

Weather in San Diego Today

🌤️

Weather

87°F

Sunny

Humidity

46%

Wind

10 mph W

Feels Like

86°F

Pressure

1010 mb

Frequently Asked Questions

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