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ME pollen report

South Portland Pollen Report

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.

Population 26,498Elevation 75 ft

Collection coming soon to South Portland

PollyMap is actively recruiting a verified local partner in South Portland. Be the first to know — or apply to be the partner.

While we find a local clinic

Test the air at your own home in South Portland

No allergy clinic is reporting from South Portland 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
Order your PollyKit

Hang it outdoors

See which pollen and mold are in your yard this season.

Or hang it indoors

Check bedrooms and living spaces for mold, dust mites and more.

Pollen patterns in South Portland

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.

Top trees

  • Birch
  • Oak
  • Maple
  • Beech
  • Ash

Top grasses

  • Timothy
  • Bluegrass
  • Orchard
  • Rye

Top weeds

  • Ragweed
  • Plantain
  • Pigweed
  • Lamb's quarters

Top molds

  • Alternaria
  • Cladosporium
  • Aspergillus
  • Penicillium

South Portland pollen calendar

Typical monthly intensity across the year.

JanFebMarAprMayJunJulAugSepOctNovDec
tree
grass
weed
mold

Historical reports

No historical reports yet.

Cities near South Portland

Explore pollen activity in nearby cities reported by the PollyMap network.

Frequently asked questions

When is allergy season in South Portland?

In South Portland, allergy season starts with tree pollen in late winter and early spring, transitions to grass pollen in May and June, and ends with weed pollen — primarily ragweed and sagebrush — from August through October.

What pollen is highest in South Portland?

The most prevalent local pollens in South Portland include Birch, Oak, Maple in the spring season.

What months are worst for allergies in South Portland?

Most South Portland allergy sufferers report the worst symptoms during peak tree pollen in March-May and again during ragweed season in September.

Does South Portland have mold allergies?

Yes. South Portland's climate supports Alternaria and Cladosporium spore exposure, with counts typically peaking in the warm and humid months.

Why are allergies bad in South Portland?

Local geography, climate, and seasonal plant cycles all influence allergen load in South Portland. The combination of regional vegetation and weather creates predictable spring and fall pollen peaks.

Is there a local pollen collection site in South Portland?

Not yet. PollyMap is actively seeking a qualified local allergy clinic or environmental health partner in South Portland to host weekly pollen collection.

How can my clinic become a PollyMap partner in South Portland?

Clinics in South Portland can apply to become the official PollyMap collection partner. Approved partners receive PollyKits weekly, conduct 24-48 hour collections, and mail samples back for microscope analysis.

Territory open in South Portland

Are you an allergy clinic in South Portland? Claim your territory on PollyMap.

PollyMap is a local authority-building tool for allergy clinics, ENT practices, and any clinic that offers allergy care. By becoming the Official PollyMap Partner for your part of South Portland, your clinic gets credited on real pollen reports, receives ready-to-share weekly content, and becomes the go-to local expert patients trust.

We assign each partner a designated territory within the South Portland metro — like a franchise territory. South Portland has room for multiple partners, but once your area is assigned, it's locked to your clinic.

No clinic has claimed a territory in South Portland yet. The best areas go to the first clinics that sign up — once one does, that part of town is off the table for everyone else.

  • Your clinic credited on every South Portland pollen report
  • Weekly real-sample reports and ready-to-share content under your brand
  • Locked territory — competing clinics can't claim your area
  • Become the go-to allergy expert in your part of South Portland

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Report findings are based on reviewed sample data and are not influenced by sponsors.