When is allergy season in Florida?

Allergy season in Florida typically runs from late winter through fall. Tree pollen rises first, followed by grass pollen in late spring and early summer, and weed pollen (especially ragweed) in late summer and fall.

What pollen is highest in Florida?

In Florida, the highest-pollen species are typically Oak, Pine, Cedar in spring, Bermuda grass in early summer, and Ragweed in fall.

What months are worst for allergies in Florida?

For most people, April and May (tree pollen) and September (ragweed) are the most difficult months in Florida, with grass pollen creating a third peak in June.

Does Florida have mold allergies?

Yes. The region's climate supports both outdoor and indoor mold exposure — particularly Cladosporium, Alternaria. Outdoor mold spore counts often rise after rain and in fall when leaves decay.

How can clinics become PollyMap collection partners?

Qualified allergy clinics, naturopathic offices, universities, and environmental health professionals can apply to host a PollyKit and become an official PollyMap collection partner. Applications are reviewed by the PollyMap team.

Is pollen still bad in Florida in November?

Yes — Florida is one of the few states where November is still an active allergy month. Ragweed tapers through October and November, grass pollen lingers in South Florida, and mold stays active in the humidity. There is no frost to shut the season down.

What causes allergies in Florida in the fall?

Fall allergies in Florida are driven mainly by ragweed (peaking in October), lingering grass pollen in the southern half of the state, and outdoor mold spores, which thrive in the warm, humid air after fall rain.

FL · Allergy Season Guide

Florida Allergy Season Guide

Florida experiences a humid subtropical climate with long, hot, humid summers and short, mild winters.

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Summary

Florida has 0 active PollyMap collection sites, and is seeking partners in 10 additional cities. Tree pollen typically dominates early spring, grass pollen peaks in late spring and early summer, and weed pollen (including ragweed) extends from late summer through fall.

PollyMap collection status across Florida

Active

Pending

Seeking Partner

While we find a local clinic

Test the air at your own home in Florida

No allergy clinic is reporting from Florida yet. Until one does, you can order your own PollyKit — a simple air sampler you hang outdoors or indoors. Send it back and the PollyKit Lab shows you exactly what's floating in your air.

Pollen from local trees, grasses and weeds
Airborne mold spores
Dust mites and other indoor allergens

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Statewide allergy overview

Florida experiences a humid subtropical climate with long, hot, humid summers and short, mild winters.

Oak, pine, cedar, and pecan create an intense, early spring tree season — sometimes coating cars in yellow pine pollen by March. Bermuda and Bahia grass pollinate from late spring through fall, and ragweed dominates the late-summer weed load.

Year-round humidity makes the Southeast one of the highest mold-load regions in the country, with Cladosporium and Alternaria peaking after summer thunderstorms and tropical systems.

Allergy patterns vary by elevation and proximity to coast or mountains within Florida, but most of the state shares a common seasonal rhythm of spring tree pollen, summer grass pollen, and late-summer to fall weed pollen.

Florida allergy calendar

Month-by-month intensity for the four major airborne allergen categories.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Tree	Mod	High	V.High	V.High	High	Mod	Low	Low	Low	Low	Low	Mod
Grass	Low	Low	Mod	High	V.High	V.High	High	Mod	Mod	Low	Low	Low
Weed	Low	Low	Mod	Mod	Mod	Mod	High	V.High	V.High	High	Mod	Low
Mold	Mod	Mod	Mod	High	High	V.High	V.High	V.High	V.High	High	Mod	Mod

Seasonal focus · Oct–Dec

October–December in Florida

Florida has the longest allergy season in the country, and fall is no exception. Ragweed peaks across North and Central Florida in October, while grass pollen — especially Bermuda and Bahia — can linger in South Florida well into the cooler months. There is no hard frost in most of the state to end the season cleanly.

Humidity keeps outdoor mold spores (Alternaria, Cladosporium) active year-round, with spikes after fall storms and during damp stretches. By December, oak trees in parts of Florida are already preparing to pollinate, so the gap between fall weed season and spring tree season can be only a few weeks.

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Major city guides in Florida

Jacksonville

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View Jacksonville allergy season guide →

Miami

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View Miami allergy season guide →

Tampa

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View Tampa allergy season guide →

Orlando

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View Orlando allergy season guide →

St. Petersburg

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View St. Petersburg allergy season guide →

Latest PollyMap reports for Florida

PollyMap is currently recruiting collection partners in this state. No locally-collected reports have been published yet.

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