Pollen Count in Rapperswil

4-Day Chart
Annual Overview

📱 Know your air. Daily Rapperswil pollen levels on your iPhone.

In early spring, pollen starts in Rapperswil as trees wake up. Hazel and alder often release the first pollen. Birch follows soon after. These trees can make the air feel busy with tiny yellow grains.

Updated: 7/29/2026

In late spring, more trees and grasses bloom. Oak and pine add pollen, and grass pollen becomes common in meadows and parks. This season can last from May into June. Warm days help many plants spread pollen faster.

In summer, grass pollen is still important in Rapperswil, especially in June and July. Some weeds also begin to flower. Plants like plantain and nettle can release pollen too. Gardens, fields, and roadsides all add to the mix.

In late summer and early autumn, weed pollen is most common. Mugwort and ragweed can release pollen then, though ragweed is less common than in some places. By October, cooler weather usually slows pollen and the main season ends.

Pollen Forecast Chart

Recommendations

When pollen concentrations reach a peak, we suggest these simple steps to help with hay fever. These tips are extra important on windy days when plants are in peak anthesis (the time when they release the most pollen).

Wear masks if necessary
Shower after going out
Wear sunglasses if windy
Close windows and doors
Use an indoor air purifier
Avoid wearing woolen clothes outside
Limit outdoor activities

Annual Pollen Overview

Check out this month-by-month overview of the daily average pollen count in Rapperswil 🌾. This data is based on previous years and serves as a guideline to help you understand when different pollen seasons typically occur in your city.

	Alder	Birch	Grass	Mugwort	Olive	Ragweed
Jan	0	0	0	0	0	0
Feb	3.1	0	0	0	0	0
Mar	15	17.5	0.5	0	0	0
Apr	6	1247.7	50.2	0	0.1	0
May	0.8	212.7	406.3	0	1	0
Jun	0	58.8	1487.7	0	2.3	0
Jul	0	0.5	432.8	5.7	0	0
Aug	0	0	119.3	15.7	0	6
Sep	0	0	16.7	9.2	0	4.6
Oct	0	0	2	1.1	0	0
Nov	0	0	0	0	0	0
Dec	0	0	0	0	0	0

Nearby Places

Disclaimer * The pollen count information provided for Rapperswil is for educational purposes only, sourced from the CAMS European air quality database. We cannot guarantee its accuracy or reliability. This information is not a substitute for professional medical advice. Consult a qualified healthcare provider for medical concerns. We are not medical professionals.