Pollen Count in Bron

4-Day Chart
Annual Overview

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In Bron, France, pollen seasons happen every year. They start in March and end in October. During this time, plants release tiny particles into the air.

Updated: 3/22/2026

Trees like oak, hazel, and birch release pollen in March and April. They make a lot of pollen, so it's a big problem for people with allergies. Grasses release pollen in May and June.

Weeds like nettle, sorrel, and dock release pollen in July and August. They're very common in Bron, so they make a lot of pollen too. This makes summer a tough time for some people.

In September and October, molds and other plants release spores. This adds to the pollen problem and makes things worse for people with allergies.

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 Bron 🌾. 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	0.4	0	0	0	0	0
Feb	52.6	0	0	0	0	0
Mar	56.5	304.4	4.6	0	0	0
Apr	8.9	443	53.6	0	0.8	0
May	0.6	17.3	917.8	0	9.7	0
Jun	0	0.6	1146.4	0.1	7	0
Jul	0	0	387.4	158.4	0	5.1
Aug	0	0	86.5	236.5	0	949.6
Sep	0	0	6.7	139.8	0	776.9
Oct	0	0	0.3	12.7	0	2.2
Nov	0	0	0	0.1	0	0
Dec	0	0	0	0	0	0

Nearby Places

Disclaimer * The pollen count information provided for Bron 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.