Pollen Count
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Pollen Counts in Slovakia

Flag of Slovakia

Check daily pollen forecasts, the pollen map, seasonal trends, and all the cities we cover in Slovakia. Forecasts update every day, so check back regularly during pollen season.

Updated: 9 Oct 2026.

Slovakia Pollen Map

This map shows daily forecasts for the cities we cover in Slovakia, updated every day.

Slovakia's Pollen Seasons

In Slovakia, tree pollen starts with alder in March. Birch follows in April, when pollen is busiest overall. Birch pollen is also the most common type across the year, so it can be an important source for people with allergies.

Grass pollen is measured in June and July in Slovakia. Olive pollen is recorded in June too. The records show these summer months include different pollen seasons, with timing differing by plant across the country.

Weed pollen arrives later: mugwort is recorded from July through September, while ragweed appears in August and September. Their seasons overlap in late summer, when some people with allergies may notice symptoms outdoors in Slovakia.

Pollen Calendar for Slovakia

Typical pollen calendar for Slovakia, averaged across 107 cities from previous years. Alder peaks in March, Birch peaks in April, Grass peaks in June, Mugwort peaks in August, Ragweed peaks in September. Use it to see which months each pollen type usually rises and falls.

  Alder Birch Grass Mugwort Olive Ragweed
Jan 5.2 0 0 0 0 0
Feb 30.7 0 0 0 0 0
Mar 707.2 213.5 1.7 0 0 0
Apr 7.5 2412.7 19.2 0 0.8 0
May 0.2 289.9 133.3 0 0.7 0
Jun 0 5.7 641 0.1 7.6 0
Jul 0 0.3 272.1 47.5 0 0.3
Aug 0 0 94.2 152.3 0 284.8
Sep 0 0 15.4 64.9 0 329.5
Oct 0 0 2 3.1 0 0.2
Nov 0 0 0.1 0 0 0
Dec 0 0 0 0 0 0

Values in gr/m³ (pollen grains per cubic metre), averaged across covered cities. Local microclimates vary. Not medical advice.

Places We Cover in Slovakia

We publish forecasts for these cities across Slovakia. Check the list to see what is near you, or view them on the Slovakia Pollen Map above.

Banská Bystrica Region

Bratislava Region

Košice Region

Nitra

Nitra Region

Other

Prešov Region

Trencin

Trenčín Region

Trnava

Trnava Region

Zilina

Žilina Region

Pollen information is for education and planning only. This is not medical advice. Consult a qualified healthcare provider about symptoms or treatment.

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