When Is Pollen Season in Florida? A Month-by-Month Allergy Guide
August 13, 2026
Florida pollen season generally runs from January through June, though it can extend further depending on the plant type and where you live in the state. Tree pollen, particularly oak, tends to dominate from late winter into spring, often peaking around March and April. Grass pollen becomes more active as temperatures rise through late spring and summer. Ragweed and other weed pollens typically pick up in late summer and fall.
Because these three pollen types overlap rather than following a single clean cycle, many Floridians experience allergy symptoms for a large portion of the year rather than a short, defined season.
Florida Pollen Season by Month
Three pollen waves that overlap through most of the year
| Pollen Type | Typical Timing | Major Examples |
|---|---|---|
| 🌳Tree pollen | Winter through spring Often heaviest February to May |
OakCedar/cypressPine |
| 🌾Grass pollen | Spring through summer | Bahia grassBermuda grassJohnson grass |
| 🌿Weed pollen | Late summer through fall | RagweedPigweedDog fennel |
Exact timing varies by year and by region, so this table is a general guide rather than a fixed calendar.
Why Florida Has Such A Long Pollen Season
Florida's subtropical climate is the main reason the state's allergy season outlasts much of the rest of the country. Mild winters mean trees don't go fully dormant the way they do farther north, so pollen production can begin earlier and run longer. Add in grasses that stay green and active for most of the year, plus weeds that thrive in Florida's humidity and warmth, and you get overlapping bloom cycles instead of one short burst.
This overlap is the key difference between Florida pollen season and allergy seasons in cooler climates. Instead of tree, grass, and weed pollen arriving in neat, separate windows, Florida residents often deal with two or even three pollen types circulating at once.
Tree Pollen Season In Florida
Tree pollen is usually the first major wave of Florida allergy season, and it tends to be the most intense.
Oak
Oak is among the most allergenic trees in Florida, according to UF/IFAS, with pollen activity typically peaking roughly between February and May. Oak trees are widespread across the state, and their pollen is a major contributor to the visible yellow-green dust that coats cars and porches each spring.
Cedar/Cypress
Cedar and cypress trees also contribute to Florida's tree pollen season, with activity that can begin in winter and continue into early spring. These trees are common throughout the state and add to the overall pollen load during the season's early months.
Other Allergenic Trees
Beyond oak and cedar/cypress, Florida's tree pollen season includes contributions from various other species that bloom across the winter-to-spring window, layering on top of one another to extend the overall tree pollen period.
Is The Yellow Pine Pollen Covering My Car Causing My Allergies?
Probably not as much as you'd think. Pine pollen is highly visible: it's the yellow dust that coats cars, sidewalks, and pool covers every spring. However, according to UF/IFAS, it's relatively low on the allergenicity scale compared to oak. Pine pollen grains are larger and heavier, so they tend to settle quickly rather than staying airborne where they'd trigger symptoms. If your allergies flare during pine's peak shedding period, oak or other tree pollen circulating at the same time is the more likely cause.
Grass Pollen Season In Florida
As temperatures climb through late spring and into summer, grass pollen becomes a bigger factor in Florida allergy season.
Bahia grass
Bahia grass is one of the most common allergenic grasses in Florida, widely used in lawns and pastures across the state. Its pollen contributes significantly to grass pollen season Florida residents experience during the warmer months.
Bermuda grass
Bermuda grass is another major allergenic grass found throughout Florida, particularly in lawns, sports fields, and golf courses. It adds to the overall grass pollen load alongside Bahia grass.
Johnson grass
Johnson grass, often found along roadsides and in open fields, rounds out the major allergenic grasses contributing to Florida's grass pollen season.
Ragweed And Weed Pollen Season In Florida
Weed pollen tends to pick up as summer transitions into fall, extending Florida's allergy season well beyond the spring tree and grass pollen peaks. Major contributors include ragweed, pigweed, and dog fennel.
Ragweed vs goldenrod
Goldenrod often gets blamed for fall allergies because of its showy yellow flowers, but it's largely innocent. Goldenrod pollen is heavy and sticky, designed to be carried by insects rather than wind, so it rarely becomes airborne in amounts that trigger symptoms. Ragweed, by contrast, produces light, wind-dispersed pollen that travels easily and is a far more significant driver of fall allergy symptoms in Florida. If goldenrod is blooming near you in late summer or fall, ragweed growing nearby is the more probable cause of your symptoms.
Does Pollen Season Differ Across North, Central, And South Florida?
Yes. Florida's size and range of climates mean pollen timing isn't uniform across the state.
North Florida tends to experience seasonal transitions earlier and more distinctly, with a winter cool-down that more closely resembles neighboring Georgia and Alabama before tree pollen ramps up in late winter.
South Florida's subtropical conditions extend pollen production over a longer stretch of the year. Tree pollen in South Florida often peaks between February and May, and the region's milder winters mean less of a true dormant period for many plants.
Central Florida generally falls somewhere between the two, with timing that can lean toward either pattern depending on the year. Because exact timing varies annually and regionally, checking a local Florida pollen count or forecast is the most reliable way to know what's active near you right now.
What Weather Makes Pollen Levels Worse?
Weather plays a significant role in day-to-day pollen levels. Warm temperatures encourage plants to produce more pollen, which is part of why Florida's mild winters contribute to such a long allergy season. Dry, windy conditions tend to keep pollen airborne and circulating, which can make symptoms worse for longer stretches.
Rain often temporarily lowers pollen counts by washing pollen out of the air. However, storm conditions are more complex; some research suggests certain storms can actually rupture pollen grains into smaller fragments that trigger symptoms more easily. Because pollen levels can shift throughout the day and don't follow a single universal pattern, checking a local Florida pollen forecast is more reliable than relying on a fixed "worst time of day" rule.
Common Pollen Allergy Symptoms
Pollen allergies, also known as seasonal allergic rhinitis, typically cause a recognizable set of symptoms:
Sneezing
Runny or stuffy nose
Itchy nose or throat
Itchy or watery eyes
Coughing or wheezing, particularly in people with pollen-triggered asthma
If symptoms are persistent, severe, or interfering with daily life, it's worth speaking with a healthcare professional rather than managing them on your own.
How Pollen Gets Inside Your Home
Pollen doesn't stay outside just because your doors and windows are shut. It hitches a ride indoors in several ways: through open windows and doors, on clothing and shoes after time outdoors, in hair, and on pets that spend time in the yard. Pollen can also be drawn into your home through your HVAC system if outdoor air is pulled in without adequate filtration. Once inside, pollen settles on floors, furniture, and surfaces, where it can be stirred back into the air by foot traffic, fans, or cleaning.
How To Reduce Pollen Indoors During Florida Allergy Season
Reducing indoor pollen exposure during Florida pollen season comes down to a combination of habits and home maintenance:
Keep windows closed when pollen is high. Rely on air conditioning instead of fresh air during peak pollen periods.
Dry laundry indoors. UF/IFAS recommends using a dryer rather than an outdoor clothesline during heavy pollen periods, because fabric hung outside collects pollen directly.
Change clothes after spending time outdoors, especially after yard work or extended time outside during peak pollen months.
Shower after heavy pollen exposure to rinse pollen out of hair and off skin before it transfers to bedding and furniture.
Wipe down pets that have been outside, since fur easily carries pollen indoors.
Clean floors and surfaces regularly to reduce pollen buildup, particularly during peak tree, grass, or weed pollen windows.
Use appropriate HVAC filtration to help capture airborne pollen that enters through your air system.
Consider portable HEPA filtration in bedrooms or other high-use rooms for additional airborne particle reduction.
What MERV Rating Is Best For Pollen?
MERV, or Minimum Efficiency Reporting Value, rates how effectively an air filter captures airborne particles, including pollen. Here's how common MERV ratings compare:
What MERV Rating Is Best for Pollen?
How common MERV ratings compare for capturing pollen
| MERV Rating | Performance for Pollen |
|---|---|
| MERV8 | Captures many larger pollen-sized particles; a standard baseline for residential filtration |
| MERV11 | Offers greater particle-capture efficiency than MERV 8, including a broader range of pollen and allergen particle sizes |
| MERV13 | EPA preferred upgrade Provides stronger fine-particle filtration; this is the rating the EPA identifies as its preferred upgrade when a home's HVAC system can accommodate it |
The EPA recommends using a MERV 13 filter, or the highest-efficiency filter your system's fan and filter slot can accommodate, as a practical way to improve indoor air filtration. It's worth noting that no HVAC filter makes indoor air "pollen-free." Filtration reduces airborne particles passing through the system, but it works alongside the other habits outlined above, not as a replacement for them.
Is MERV 13 or HEPA better for pollen?
Both have a role to play, and they're not direct competitors. MERV-rated filters are designed for central HVAC systems, filtering the air that circulates through your home's ductwork. True HEPA filters are more commonly found in portable room air cleaners, where they filter the air in a single space more intensively.
For whole-home filtration tied to your existing HVAC system, a MERV 13 filter (if your system supports it) is the EPA's recommended upgrade path. If you want more targeted filtration in a bedroom or living area, a portable HEPA air cleaner can complement your HVAC filter rather than replace it. When choosing a portable unit, the EPA recommends sizing it by CADR (Clean Air Delivery Rate) relative to your room's square footage, rather than assuming any HEPA cleaner will work for any space.
Choose a MERV 13 HVAC filter if your system can support the added airflow restriction and you want to address pollen throughout the whole house. Choose a portable HEPA cleaner if you want extra filtration concentrated in one high-use room, such as a bedroom.
Choosing a Filterbuy air filter for Florida pollen season
Filterbuy offers air filters across MERV 8, MERV 11, and MERV 13 ratings, giving Florida households a way to match filtration to their HVAC system's capabilities and their household's pollen sensitivity. A MERV 8 filter provides a solid baseline for capturing larger pollen particles, MERV 11 steps up particle-capture efficiency for households wanting more protection, and MERV 13 (where your system supports it) aligns with the EPA's preferred recommendation for finer particle filtration.
As with any air filter, check your HVAC manufacturer's guidance before upgrading to a higher MERV rating, since some systems aren't designed to handle the added airflow resistance of denser filters. Filter replacement timing should also follow manufacturer guidance rather than a fixed schedule, since factors like household size, pets, and local pollen levels all affect how quickly a filter loads up.
Breathe easier through Florida's long pollen season
Florida's pollen season doesn't follow a tidy calendar, but understanding the rough pattern (tree pollen in late winter and spring, grass pollen through the warmer months, and ragweed into fall) can help you anticipate your worst weeks rather than being caught off guard. Pair that awareness with practical indoor habits, from closing windows during high-pollen days to choosing the right HVAC filter for your system, and you can meaningfully reduce how much pollen makes it into your home.
If your symptoms are significant or persistent, a healthcare professional can help you build a more targeted management plan. And if you're ready to upgrade your home's filtration, explore Filterbuy's MERV 8, 11, and 13 options to find the right fit for your HVAC system.
Frequently Asked Questions
When Does Pollen Season Start In Florida?
Pollen season in Florida typically begins in winter, with tree pollen, especially oak, often becoming active as early as January and ramping up through February.
When Does Pollen Season End In Florida?
There isn't a single end date. Tree pollen usually winds down by early summer, but grass pollen continues through the warmer months, and ragweed and other weeds can extend symptoms into fall.
What Are The Worst Months For Allergies In Florida?
For tree pollen, February through May tends to be the most intense stretch, according to UF/IFAS. Grass and weed pollen can extend elevated pollen counts into summer and fall, so "worst months" can vary depending on what you're sensitive to.
What Plants Cause The Most Allergies In Florida?
Oak is among the most allergenic trees in the state. Bahia, Bermuda, and Johnson grass are major allergenic grasses, and ragweed is a leading cause of late-summer and fall symptoms.
Does Pine Pollen Cause Allergies In Florida?
Pine pollen is highly visible but, according to UF/IFAS, relatively low on the allergenicity scale compared to oak. If you have symptoms during pine's peak shedding period, other tree pollen circulating at the same time is a more likely trigger.
Is Goldenrod Responsible For Fall Allergies In Florida?
Not usually. Goldenrod's pollen is heavy and insect-pollinated, so it rarely becomes airborne. Ragweed, which produces lightweight, wind-dispersed pollen, is the more likely culprit behind fall allergy symptoms.
Does Pollen Season Differ Between North And South Florida?
Yes. North Florida tends to have earlier, more distinct seasonal transitions, while South Florida's subtropical climate extends pollen production over a longer period, with tree pollen often peaking between February and May.
What Weather Makes Florida Pollen Levels Worse?
Warm temperatures encourage pollen production, and dry, windy conditions keep pollen airborne longer. Rain often temporarily reduces pollen counts, though storm conditions can be more complex.
How Can I Reduce Pollen Inside My Home?
Keep windows closed during high-pollen periods, dry laundry indoors instead of on a clothesline, change clothes and shower after outdoor exposure, wipe down pets, clean surfaces regularly, and use appropriate HVAC and/or portable HEPA filtration.
What MERV Rating Is Best For Filtering Pollen?
The EPA recommends MERV 13, or the highest-efficiency filter your HVAC system's fan and filter slot can accommodate, for improved filtration of fine airborne particles, including pollen.
Is A HEPA Filter Better Than A MERV-Rated Filter For Pollen?
They serve different purposes. MERV-rated filters work within central HVAC systems for whole-home filtration, while true HEPA filters are typically used in portable room air cleaners for more concentrated filtration in a single space. Many households use both.
How Often Should I Replace My Air Filter During Pollen Season?
Replacement timing depends on your specific filter and household factors like pet dander and local pollen levels. Always follow your filter manufacturer's guidance rather than a fixed schedule.