The Melbourne year in pollen

Pollen seasons in Melbourne: tree pollen December to April, grass March to October, and ragweed from mid-July until the first frost, around January 12.

Tree pollen
Grass
Ragweed
Ragweed's bar ends at the typical first frost — around January 12.

When does ragweed season end in Melbourne?

Ragweed season in Melbourne typically ends with the first frost, around January 12. Some years it comes as early as January 6, some as late as January 25.

The rest of the Melbourne pollen year

AllergenTypical season
Oak (live oak) January to April
Pine January to April
Cypress and red cedar December to February
Grass March to October

Season-by-season detail is on the Florida page.

Nearby calendars

Frost dates for Melbourne come from the Melbourne International Airport weather station's 30-year records. Season windows reviewed August 2026.