Pollen Count in Nyon

4-Day Chart
Annual Overview

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Nyon, Switzerland has different pollen seasons. Tree pollen starts in March. It's highest in April and May. Trees like oak, beech, and birch produce a lot of pollen.

Updated: 4/20/2026

Grass pollen season starts in May. It's highest in June and July. Grass pollen can travel far. It makes people feel bad outside on sunny days.

Ragweed pollen season is in August and September. Ragweed grows in fields and along roads. It produces a lot of yellow pollen. This pollen can cause problems.

Weed pollen season is in September and October. Weeds like mugwort and nettle produce pollen. It's not as bad as other pollen seasons. But it can still cause issues.

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 Nyon 🌾. 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	38.8	0	0	0	0	0
Mar	62.7	182.9	0.4	0	0	0
Apr	9.1	1273.7	36.1	0	0.2	0
May	1.4	146	449.9	0	3.8	0
Jun	0	4.6	1201.8	0	5.9	0
Jul	0	0	365.7	15.8	0	0.1
Aug	0	0	90.5	36	0	50
Sep	0	0	8.8	23.6	0	48.5
Oct	0	0	0.9	2.5	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 Nyon 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.