Pollen Count in Cologne

4-Day Chart
Annual Overview

Trees release pollen in the spring. This is usually in March and April in Cologne. It comes from trees like oak, birch, and hazel. The pollen count is high during this time.

Updated: 2/11/2026

In May and June, grasses release their pollen. This is a busy time for pollen in Cologne. The air is filled with pollen from different types of grass. It's a challenging time for people who react to pollen.

In July and August, weeds like nettle and sorrel release pollen. This is the last peak of pollen in Cologne. The pollen count starts to go down after August.

The good news is that from September to February, the pollen count is low. During this time, people who react to pollen can enjoy the outdoors without worrying about pollen. They can play, bike, and have fun outside!

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 Cologne 🌾. 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	30.7	0	0	0	0	0
Mar	297.1	620.5	0	0	0	0
Apr	5.6	3592.7	12.7	0	0	0
May	0.7	111.7	141.5	0	0.5	0
Jun	0	0.1	739.3	39.9	0.6	0
Jul	0	0.2	245.3	240.5	0	0
Aug	0	0	54	60.7	0	84.7
Sep	0	0	4.3	2.3	0	89.6
Oct	0	0	0.3	0.1	0	0.1
Nov	0	0	0	0	0	0
Dec	0	0	0	0	0	0

Nearby Places

Disclaimer * The pollen count information provided for Cologne 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.