Pollen levels shift throughout the year, depending on the season, region, and local vegetation. These city-specific calendars provide a visual summary of when different pollen and spore types are typically in the air. Whether you’re managing allergies or simply curious about your local environment, these calendars offer a helpful glimpse into the natural rhythms of grasses, trees, weeds, and fungal spores in your area.
Click on your city's calendar to see in more detail:
A pollen calendar shows which types of pollen and fungal spores are typically present in the air during different months of the year. It is organized by plant or spore type (such as grasses, trees, weeds, and fungi) with coloured bars indicating the months when each aeroallergen is most active. Use it to anticipate allergy seasons, guide treatment planning, and reduce exposure during peak periods.
