Pollen Count

Pollen count in Leiria

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In Leiria, Portugal, there are three main pollen seasons. Each season brings different types of pollen into the air.

The first pollen season starts in January and ends in March. This is when trees like olive, oak, and cypress release their pollen. During this time, the air is filled with tree pollen.

The second pollen season begins in May and lasts until July. This is when grasses and weeds release their pollen. You can see the yellow dust on cars and streets.

The third pollen season starts in August and ends in October. This is when plants like ragweed and nettle release their pollen. This is the shortest pollen season in Leiria.

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Recommendations

When pollen counts are high, we suggest doing these things to help with allergies, especially on windy days when pollen is flying around.

Annual Pollen Overview

Check out this month-by-month overview of the daily average pollen count in Leiria 🌾. 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 3.2 0 0 0 0 0
Feb 1.4 0 0.6 0 0 0
Mar 0.1 15.3 9.9 0 0 0
Apr 0 14.4 105.3 0 949.8 0
May 0 0.7 226 0 542.1 0
Jun 0 0 169.2 0 30.5 0
Jul 0 0 47.2 0 0.7 0
Aug 0 0 12.2 0.8 0 0
Sep 0 0 3.6 0.5 0 0.5
Oct 0 0 0 0.1 0 0
Nov 0 0 0 0.7 0 0
Dec 0 0 0 0 0 0

Disclaimer

* The pollen count information provided for Leiria 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.