Pollen Count in Saint-Guénolé

4-Day Chart
Annual Overview

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Saint-Guénolé, France has different pollen seasons. Trees produce pollen in spring, usually from March to May. During this time, many trees release pollen into the air.

Updated: 4/8/2026

Grasses and weeds also produce pollen. Their pollen season starts in late spring and lasts until summer. June and July are the peak months for grass pollen.

In late summer, around August and September, weeds produce a lot of pollen. This can make life difficult for people sensitive to pollen.

The pollen season ends with the first frosts in autumn, usually in October or November. Then, the air is cleaner, and pollen counts are much lower.

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 Saint-Guénolé 🌾. 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	7.5	0	0	0	0	0
Mar	382.4	257.6	1.9	0	0	0
Apr	5.3	1295.6	34.5	0	0.2	0
May	0.4	28	204	0	3.1	0
Jun	0	0	659	0.1	0.5	0
Jul	0	0	289.1	5.4	0	0
Aug	0	0	96.8	4.1	0	1
Sep	0	0	7.5	2.4	0	0.2
Oct	0	0	1.7	0.3	0	0
Nov	0	0	0	0.1	0	0
Dec	0	0	0	0	0	0

Nearby Places

Disclaimer * The pollen count information provided for Saint-Guénolé 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.