ME · Allergy Season Guide
South Portland Allergy Season Guide
PollyMap is actively seeking a qualified local collection partner in South Portland. This guide uses regional climate and historical allergen data while we recruit a local host.
PollyMap is actively looking for a qualified local partner in South Portland.
We're recruiting a qualified local allergy clinic, naturopathic clinic, university, environmental health professional, or other qualified organization to become the official pollen collection partner for South Portland.
Become the Official PollyMap Partner for South PortlandSummary
PollyMap does not yet have weekly collected pollen data for South Portland. This guide is based on regional climate patterns and historical allergen data while we recruit a local collection partner. Tree pollen peaks in spring, grass pollen in late spring and early summer, and weed pollen in late summer and fall.
Local allergy guide for South Portland
South Portland shares Maine's a humid continental climate with four distinct seasons — cold, snowy winters and warm, humid summers. at 75 ft elevation.
South Portland at 75 ft elevation sits within Maine's broader regional climate.
In South Portland, tree pollen — including Birch, Oak, Maple — typically dominates from late winter through spring. Timothy grass is the most common warm-season pollinator, and Ragweed drives the largest fall pollen load.
South Portland's local mold profile includes Alternaria, Cladosporium, Aspergillus. Spore counts tend to peak after rainfall and during the warm, humid portion of the year.
Local weather — temperature, rainfall, wind, and humidity — drives day-to-day pollen levels. Dry, windy days following warm weather typically produce the highest counts, while heavy rain temporarily clears the air.
South Portland monthly allergy calendar
Typical month-by-month intensity for the four major airborne allergen categories in South Portland.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tree | Low | Mod | High | V.High | V.High | High | Mod | Low | Low | Low | Low | Low |
| Grass | — | — | Low | Mod | V.High | V.High | High | Mod | Low | Low | — | — |
| Weed | Low | Low | Low | Mod | Mod | Mod | High | V.High | V.High | High | Mod | Low |
| Mold | Low | Low | Mod | Mod | High | High | High | V.High | V.High | V.High | Mod | Low |
Most common local pollens — weeds
Most common airborne molds
Current PollyMap data for South Portland
Official PollyMap Partner in South Portland
Frequently asked questions about allergies in South Portland
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Related guides
State Guide
Maine Allergy Season Guide
Nearby city
Portland Allergy Season Guide
Nearby city
Lewiston Allergy Season Guide
Nearby city
Bangor Allergy Season Guide
Nearby city
Auburn Allergy Season Guide
Library
Pollen species library
Library
Mold species library
Reports
Latest PollyMap reports
Partners
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