Pollen Count in Lillestrøm

4-Day Chart
Annual Overview

Now on iOS! 📱 Get daily pollen updates, forecasts, and alerts on your iPhone ✨.

Lillestrøm has four main pollen seasons. Spring starts in March with birch trees releasing pollen. This season usually lasts until May. Many trees produce a lot of pollen.

Updated: 3/26/2026

The next season starts in May with grass pollen. This season lasts until July. Grasses release a lot of pollen into the air. People notice it more outdoors.

In late summer, from August to September, pollen from weeds and mugwort increases. This season is usually not as bad as the others. Some plants still produce pollen.

In winter, from November to February, there is almost no pollen. The trees and plants are dormant. The air is usually clean and pollen-free during this time.

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 Lillestrøm 🌾. 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	Ragweed
Jan	0	0	0	0	0
Feb	0.2	0	0	0	0
Mar	18.3	120.2	0	0	0
Apr	1.9	5055.6	0	0	0
May	0.5	672.4	5.9	0	0
Jun	0	47.2	431.5	0	0
Jul	0	1.8	452.3	34.3	0
Aug	0	0	22.1	55.2	0.1
Sep	0	0	0.3	0.1	11
Oct	0	0	0	0	0
Nov	0	0	0	0	0
Dec	0	0	0	0	0

Nearby Places

Disclaimer * The pollen count information provided for Lillestrøm 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.