Pollen Count
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Pollen Count in Castricum aan Zee

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Castricum aan Zee has different pollen seasons. Tree pollen starts in March. It's high in April and May. Elm, oak, and birch trees produce a lot of pollen.

Updated: 2/8/2026

Grass pollen season starts in May. It peaks in June and July. Many people feel unwell during this time. Grasses and weeds produce a lot of pollen.

Weed pollen season starts in July. It lasts until September. Ragweed and nettle produce a lot of pollen. This can be bad for people.

Pollen counts are usually low in winter. They rise in spring and summer. Weather affects pollen counts. Rain can wash pollen away, but wind can spread it.

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 Castricum aan Zee 🌾. 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 9.5 0 0 0 0 0
Mar 1720 4.7 0 0 0 0
Apr 15.8 594.1 10.4 0 0 0
May 0.8 153.7 55.6 0 0 0
Jun 0 0.1 427.5 8.5 0.2 0
Jul 0 0.7 160.6 46.3 0 0
Aug 0 0 59.4 16.4 0 0.2
Sep 0 0 11.1 0.7 0 1.4
Oct 0 0 1.1 0.1 0 0
Nov 0 0 0.1 0 0 0
Dec 0 0 0 0 0 0

Nearby Places

Disclaimer * The pollen count information provided for Castricum aan Zee 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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