Pollen Count

Pollen Count in Södertälje

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In early spring, birch trees start to release pollen. This often happens in April and May in Södertälje. The air can feel full of tiny grains on windy days. Birch is one of the biggest pollen sources in this season.

Updated: 8/26/2026

In late spring and early summer, grasses release a lot of pollen. This season usually comes in May, June, and July. Many meadows, lawns, and field edges have grass pollen then. Rye grass and other common grasses are important plant sources.

In summer, some weeds begin to bloom and spread pollen. This can happen in July and August. Plants like mugwort and other wild weeds are common pollen makers. Their pollen is often seen later than tree pollen and grass pollen.

In late summer and early autumn, pollen levels are usually lower. Some weed plants may still release pollen into September. Trees are mostly finished by then. The air often changes as the season moves toward cooler weather and fewer flowers.

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).

Annual Pollen Overview

Check out this month-by-month overview of the daily average pollen count in Södertälje 🌾. 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 2.1 0 0 0 0 0
Mar 40.3 2.5 0 0 0 0
Apr 1.7 4014 0.1 0 0 0
May 5.2 1081.9 14.2 0 0 0
Jun 0 27.2 253.9 0.1 0 0
Jul 0 2.7 266.5 39.7 0 0
Aug 0 0 53.3 14.4 0 1.3
Sep 0 0 3.8 0.1 0 26.1
Oct 0 0 0.2 0 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 Södertälje 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.
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