HI pollen report

Hilo Pollen Report

PollyMap is actively seeking a qualified local collection partner in Hilo. This guide uses regional climate and historical allergen data while we recruit a local host.

Population 44,186Elevation 38 ft

Collection coming soon to Hilo

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

Pollen patterns in Hilo

In Hilo, tree pollen — including Eucalyptus, Ironwood, Mango — typically dominates from late winter through spring. Bermuda grass is the most common warm-season pollinator, and Plantain drives the largest fall pollen load.

Top trees

  • Eucalyptus
  • Ironwood
  • Mango
  • Acacia

Top grasses

  • Bermuda
  • Paspalum
  • Johnson

Top weeds

  • Plantain
  • Pigweed

Top molds

  • Cladosporium
  • Alternaria
  • Aspergillus
  • Penicillium

Hilo pollen calendar

Typical monthly intensity across the year.

JanFebMarAprMayJunJulAugSepOctNovDec
tree
grass
weed
mold

Historical reports

No historical reports yet.

Cities near Hilo

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

Frequently asked questions

When is allergy season in Hilo?

In Hilo, 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 Hilo?

The most prevalent local pollens in Hilo include Eucalyptus, Ironwood, Mango in the spring season.

What months are worst for allergies in Hilo?

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

Does Hilo have mold allergies?

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

Why are allergies bad in Hilo?

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

Is there a local pollen collection site in Hilo?

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

How can my clinic become a PollyMap partner in Hilo?

Clinics in Hilo 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.

Bring real pollen data to Hilo.

Become the lead PollyMap collection partner in Hilo and join our national network.

Apply today