Clearwater, FL Pollen Levels Today

Clearwater, Florida sits along the Gulf Coast in a humid subtropical climate, which produces a lengthy, overlapping allergy calendar with minimal true "off-season."

Tree pollen drives the most intense period, typically beginning as early as January and peaking from February through April, with oak—especially live and laurel oak—being the dominant offender. Bayberry, cedar/juniper, pine, elm, and maple also contribute, and while pine pollen is highly visible, oak tends to cause more significant symptoms.

As tree counts taper, grass pollen takes over from late April through September, with Bahia and Bermuda grass being the principal regional sources, along with Johnson and ryegrass.

Weed pollen rises in late summer and dominates the fall, peaking from September into November; ragweed is the primary culprit, supported by pigweed, dog fennel, sagebrush, and nettle. The overlap between lingering grasses and emerging weeds in early fall often intensifies symptoms.

Beyond pollen, Clearwater's persistent humidity and frequent rainfall fuel year-round mold spores—particularly Cladosporium and Alternaria—along with dust mites thriving indoors. Coastal breezes, occasional Saharan dust events, and urban air quality can further aggravate symptoms.

Overall, Clearwater's allergy profile is defined by heavy oak and grass loads, strong fall ragweed, and chronic mold pressure.