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*Disclaimer: HeyAllergy® provides all clinical services furnished to patients in California, Florida, Texas, Illinois, Nevada, Pennsylvania. In New York, clinical services are furnished by Hey Allergy Medicine.
Real-time pollen data for Jacksonville - updated daily.
Jacksonville's tree pollen season starts earlier than most U.S. cities, often beginning in late January thanks to North Florida's mild winters. Live oak is the dominant tree allergen, coating cars, porches, and sidewalks in thick yellow-green pollen dust from late February through April. River birch blooms in late winter and early spring, and birch pollen can cross-react with certain fruits and vegetables through oral allergy syndrome. Bayberry is a common Florida-specific allergen whose fragrant pollen spreads easily on spring breezes. Elm trees begin pollinating as early as late January. Cedar, cypress, pine, maple, and pecan round out the tree pollen load. Pine pollen is highly visible but actually less allergenic than the finer, invisible oak and birch pollen that penetrates deeper into airways.
North Florida's extended warm season supports a prolonged grass pollen period. Bahia grass is the most prevalent grass allergen in the Jacksonville area, thriving in sandy soils and subtropical heat. Bermuda grass is widespread in residential lawns, golf courses, and athletic fields throughout Duval County. Timothy grass, Johnson grass, and perennial ryegrass contribute additional grass pollen in suburban and semi-rural areas of western Jacksonville. Unlike northern cities where grass season lasts two to three months, Jacksonville's grass pollen can remain elevated for six months or longer.
Ragweed is the primary fall allergen in Jacksonville, with pollen release beginning in August as evening temperatures cool slightly. A single ragweed plant can produce up to one billion pollen grains, and the lightweight grains travel hundreds of miles on wind currents. Pigweed (amaranth), lamb's quarters, dog fennel, sorrel, and dock contribute to the weed pollen load. Jacksonville's proximity to agricultural areas in surrounding counties adds additional weed pollen sources that drift into the metro area on prevailing winds.
Jacksonville's average relative humidity of 70% and 50+ inches of annual rainfall create ideal conditions for dust mites and mold. Dust mites thrive in the warm, humid indoor environments of Northeast Florida homes, especially in bedding, upholstered furniture, and carpeting. Mold is a persistent problem both indoors and outdoors. Alternaria, Cladosporium, Aspergillus, and Penicillium spores circulate year-round. Fall mold surges occur when cooler temperatures and residual summer moisture promote rapid mold growth in decaying leaves, mulch, and damp areas.
Severity: Moderate to High
While much of the country is frozen, Jacksonville's trees are already pollinating. Elm and cedar begin releasing pollen in late January. By mid-February, oak trees start their season and pollen counts climb rapidly. River birch and bayberry add to the load. Indoor allergens remain elevated as homes stay closed during cooler nights. This early onset catches many newcomers off guard.
Severity: Severe
This is Jacksonville's worst allergy period. Live oak pollen reaches its peak in March and April, creating visible yellow-green clouds on breezy days. Pine pollen adds dramatic visual coating to every outdoor surface. By late April, grass pollen begins overlapping with lingering tree pollen, creating a double-exposure period. May marks the transition from tree to grass dominance, but total pollen counts remain high throughout.
Severity: Moderate to High
Bahia and Bermuda grass pollen peak during the hot summer months. Jacksonville's summer humidity often exceeds 80%, creating ideal conditions for outdoor and indoor mold growth. Afternoon thunderstorms occurring almost daily temporarily wash pollen from the air but boost mold spore counts in the days following. The combination of grass pollen and mold makes summer a persistent allergy challenge.
Severity: Moderate to High
Ragweed dominates from late August through October, overlapping with the fall mold surge as decaying plant matter accumulates. Cooler evening temperatures combined with residual humidity promote rapid mold growth in yard debris, gutters, and mulch beds. Grass pollen remains elevated through October in North Florida's extended growing season. By late November, outdoor allergens begin to decline.
Severity: Low to Moderate
December offers Jacksonville's closest thing to an allergy break, though it is short-lived. Outdoor pollen counts drop to their lowest levels. However, indoor allergens like dust mites, pet dander, and indoor mold remain active as homes are sealed against cooler temperatures. By late December, early cedar and elm pollen may already be detectable, signaling the start of the next cycle.
Unlike most U.S. cities where spring allergies begin in March or April, Jacksonville's tree pollen can start in late January. If you moved to Northeast Florida from a northern state, do not wait for traditional spring to start your allergy medication. Begin daily antihistamines or nasal sprays by mid-January to stay ahead of the early elm and cedar pollen. The yellow-green oak pollen coating everything outdoors from February through April is just the visible portion.
Jacksonville spans over 840 square miles, from Atlantic beaches to inland forests to river corridors. Your allergen exposure varies dramatically depending on where you live and commute. Coastal neighborhoods like Jacksonville Beach, Neptune Beach, and Atlantic Beach benefit from ocean breezes that push pollen inland, while areas near the Timucuan Preserve, along the St. Johns River, or in heavily wooded neighborhoods like Mandarin, Riverside, and Arlington face concentrated tree and mold exposure.
The St. Johns River and its tributaries create extensive wetland and marsh environments throughout Jacksonville. These waterways promote year-round mold growth that other inland cities do not face at the same scale. If you live near the river in neighborhoods like San Marco, Riverside, Ortega, or Mandarin, consider running a dehumidifier year-round and keeping indoor humidity below 50%. Clean gutters regularly and remove standing water from your property.
Jacksonville averages afternoon thunderstorms almost daily from June through September. While rain temporarily clears pollen from the air, the moisture that follows fuels mold spore explosions within 24 to 48 hours. Plan outdoor exercise for early morning when both pollen and mold counts are typically lowest. After thunderstorms, wait at least a day before heavy outdoor activity if you are mold-sensitive.
Jacksonville's 70% average humidity makes it one of the best environments in the country for dust mites. These microscopic creatures thrive in bedding, carpets, and upholstered furniture and they do not have an off-season in North Florida. Use allergen-proof mattress and pillow encasements, wash bedding weekly in hot water, and consider replacing carpet with hard flooring in bedrooms. HEPA air purifiers and regular HVAC filter changes make a measurable difference.
With allergens circulating nearly year-round in Jacksonville, over-the-counter antihistamines often are not enough for long-term relief. A board-certified allergist can identify your specific triggers through blood testing and create a targeted treatment plan. HeyAllergy offers telemedicine appointments with board-certified allergists licensed in Florida with no waitlist and no commute through Jacksonville's I-95, I-295, or I-10 traffic. For patients with confirmed allergies, HeyPak sublingual immunotherapy (allergy drops) treats the root cause by gradually building tolerance to your specific allergens.
March and April are typically Jacksonville's worst allergy months, when live oak pollen peaks and creates visible yellow-green clouds. However, Jacksonville has significant allergens nearly year-round: tree pollen from January through May, grass pollen from April through October, ragweed from August through November, and mold year-round due to the subtropical humidity.
The most common allergens in the Jacksonville area are live oak pollen, Bahia and Bermuda grass pollen, ragweed, and mold spores. River birch, bayberry, elm, cedar, pine, and cypress are also significant tree allergens. Dust mites are a major indoor allergen due to Jacksonville's high humidity. A blood allergy test can identify your specific triggers.
Effectively, yes. Tree pollen starts in late January, grass pollen extends through October, ragweed runs August through November, and mold and dust mites are present year-round. December is the only month with notably lower outdoor pollen, but indoor allergens remain active. Many Jacksonville residents experience symptoms in every season.
Yes. HeyAllergy provides telemedicine appointments with board-certified allergists and immunologists licensed in Florida. Book a virtual consultation from anywhere in the state, have allergy blood tests ordered at a lab near you, and start a personalized treatment plan, all without visiting a clinic. No referral needed and no waitlist.
HeyPak sublingual immunotherapy uses customized liquid drops placed under your tongue daily. The drops contain precise doses of the specific allergens triggering your symptoms, whether that is oak pollen, Bahia grass, ragweed, dust mites, or mold. Over time, your immune system builds tolerance, reducing allergic reactions and the need for daily medications. Most patients notice improvement within 3 to 6 months.
HeyAllergy accepts Medicare and most major PPO health plans, including United Healthcare, Health Net, Anthem Blue Cross, Anthem Blue Cross Blue Shield, Blue Shield, Cigna, Aetna, Humana, Oscar, and Tricare. Contact your insurance provider with Tax ID: 85-0834175 to confirm your specific telemedicine coverage.
Jacksonville exposes newcomers to allergens they may never have encountered before, particularly Bahia grass, bayberry, and specific subtropical mold species. Your immune system can develop new sensitivities within one to three years of exposure. Additionally, many people assume coastal areas have low pollen, but pollen travels hundreds of miles on wind currents and Jacksonville's massive tree canopy produces enormous pollen loads locally.
HeyAllergy offers fast scheduling with no waitlist. You can book a telemedicine appointment with a board-certified allergist and connect from home using your phone, tablet, or computer. There is no need to drive through Jacksonville's I-95, I-295, or Butler Boulevard traffic to sit in a waiting room.
Jacksonville is the largest city by land area in the contiguous United States, covering over 840 square miles of Duval County. That geographic sprawl means Jacksonville is not one allergy environment but dozens. A resident in Jacksonville Beach faces different allergen exposure than someone living in Mandarin, Westside, or the Northside. The city encompasses Atlantic coastline, the St. Johns River corridor with its extensive marshlands and tributaries, dense maritime forests, suburban developments carved from pine flatwoods, and semi-rural areas bordering agricultural land in Baker, Clay, Nassau, and St. Johns counties.
The St. Johns River, one of the few major rivers in North America that flows northward, winds through the heart of Jacksonville before emptying into the Atlantic Ocean. Along its path, the river and its tributaries (Trout River, Ortega River, Cedar Creek, Broward River) create extensive wetland and marsh environments. These waterways are ecological treasures but also powerful mold generators. Riverside, San Marco, Ortega, and other riverfront communities experience consistently higher mold exposure. The Timucuan Ecological and Historic Preserve, 46,000 acres of pristine wetlands and hardwood forests, sits within city limits and adds another major natural allergen source.
Jacksonville sits in a subtropical climate zone with an average annual temperature of 71 degrees, 220+ days of sunshine, and 50+ inches of rainfall per year. These conditions support plant growth for roughly 10 to 11 months of the year, which translates directly into an extended pollen season. Tree pollen begins in late January, a full month before most southeastern cities, when elm and cedar start pollinating. Live oak follows in February and dominates through April. The overlap between tree, grass, and weed pollen seasons means continuous allergen exposure from late January through November.
Jacksonville's population has grown steadily, attracting residents from across the country. Many newcomers arrive expecting Florida's coast to be allergy-friendly, a common misconception. Pollen travels hundreds of miles on wind currents, and Jacksonville's own tree canopy produces enormous local pollen loads. People who relocate to Northeast Florida frequently develop new allergies within one to three years as their immune systems sensitize to unfamiliar allergens like Bahia grass, bayberry, and subtropical mold species. Jacksonville consistently ranks among the top 100 worst U.S. cities for spring allergies.
Jacksonville's average relative humidity of 70% creates one of the most favorable environments in the country for dust mites and indoor mold. Dust mites thrive in warm, humid conditions and are a leading cause of year-round allergic rhinitis and asthma symptoms. Jacksonville's climate means dust mites never experience the die-off periods that occur in drier or colder regions. Mold compounds the problem: summer humidity often exceeds 80%, frequent afternoon thunderstorms run from June through September, and aging housing stock in many neighborhoods creates persistent indoor mold exposure.
Jacksonville's massive footprint means long commutes are a fact of daily life. Driving from the Westside to the Beaches, or from the Northside to Mandarin, can easily take 45 minutes to an hour. Traditional allergy treatment with weekly or biweekly shots requires repeated clinic visits that many Jacksonville residents cannot fit into their schedules. HeyAllergy's telemedicine model eliminates the commute entirely. Board-certified allergists conduct virtual consultations, order blood allergy tests at a lab convenient to your neighborhood, and ship HeyPak allergy drops directly to your door.
If you experience nasal congestion, sneezing, itchy or watery eyes, coughing, or breathing difficulty for more than a few weeks per year, your symptoms likely have an allergic component worth investigating. Jacksonville's year-round allergen exposure means many residents have been taking over-the-counter antihistamines for years without addressing the underlying cause. A board-certified allergist and immunologist can pinpoint your exact triggers, distinguish allergies from conditions like chronic sinusitis or non-allergic rhinitis, and create a treatment plan tailored to Northeast Florida's specific allergen profile. HeyAllergy's sublingual immunotherapy (HeyPak allergy drops) offers a long-term solution that treats the root cause of allergies from the comfort of your Jacksonville home.
