Hawaii pollen and allergy seasons
Hawaii has a mild steady season, with grass pollen present most of the year and a spring rise from kiawe and grass.
Twelve month pollen calendar
What is active in September
Cities in Hawaii
No tracked cities yet for Hawaii.
Today and worst today come from live readings where available. Typical shows the usual level for this month from the seasonal profile.
Pollen is only half of what's in the air. See today's air quality in Hawaii for ozone, dust, and smoke readings by city.
The Hawaii allergy season
Allergy levels in Hawaii peak in May, when grass pollen runs highest. The season moves through tree pollen around April, grass in May. Levels start to climb around March. The lowest pollen levels of the year arrive in January.
Common questions
When does allergy season start in Hawaii?
Pollen levels in Hawaii usually begin climbing in March and reach their highest point in May.
What is the worst month for allergies in Hawaii?
May is typically the worst month in Hawaii, driven by grass pollen.
When is the best time for allergies in Hawaii?
January usually brings the lowest pollen levels of the year in Hawaii.