Orlando, FL Pollen Levels Today

Orlando's subtropical climate, with its mild winters, hot summers, and high year-round humidity, creates one of the most prolonged allergy seasons in the United States, with pollen present in some form nearly every month.

Tree pollen kicks off the heaviest stretch as early as January and peaks from February through April, driven by oak, cedar, juniper, pine, bayberry, and elm, with oak producing the thick yellow-green dust familiar to Central Florida residents.

As tree counts taper, grass pollen rises through late spring and dominates the summer, with Bahia, Bermuda, and Johnson grasses serving as the primary culprits from May into September.

Weed pollen, led by ragweed, pigweed, dog fennel, and sagebrush, takes over in late summer and peaks through October and into November.

Because Florida's warm climate allows overlapping bloom periods—especially the tree-to-grass transition in April and May—sufferers often experience compounded symptoms during shoulder seasons.

Beyond pollen, Orlando's persistent humidity fuels heavy year-round mold spore counts (including Cladosporium and Alternaria), while dust mites thrive indoors and ozone levels rise in summer.

Overall, Orlando's allergy profile is defined by its near-continuous pollen calendar, aggressive oak and Bahia grass seasons, and a constant baseline of humidity-driven mold.