Tree Pollen Count in Västerås, Sweden

Last updated Friday, November 6, 2026

This page shows the most recent reading available for Västerås — from Friday, November 6, 2026 (1 day ago) — not today's reading.

Pollen by type in Västerås

What is the tree pollen count in Västerås today?

The Västerås tree pollen index today is 0.6 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Västerås’s overall pollen count today is 35 (Low) across all types. See the full Västerås pollen count for the overall index and every type together.

Västerås Tree Pollen Count: 5-Day Forecast

DayOverall indexCategory
Friday, November 635Low
Saturday, November 734Low
Sunday, November 828Low
Monday, November 931Low
Tuesday, November 1031Low

Pollen Atlas models the daily detail as an overall index: day-by-day splits by individual pollen type are not part of the modelled data, so this table shows Västerås’s overall trend across the week. Today’s tree pollen reading is the headline above.

Species driving Västerås’s tree pollen

Species-level counts are not part of the modelled data Pollen Atlas publishes — the modelled index is reported per pollen type, not per species — so this section gives the type summary: tree pollen reads 0.6 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.

Plants affecting Västerås now — tree pollen

Detailed plant-by-plant readings for the tree pollen category were not returned in today’s source data for Västerås. The type summary stands: tree pollen reads 0.6 (Low) today.

In the Nordic & Baltic North pattern, the plants that typically shape this city’s year are a compressed birch-led spring, a brief early-summer grass peak, and a short late-summer mugwort finish — named here as regional context only, not as today’s readings.

Plant detail returns here automatically on any day the feed includes it.

What this tree pollen level means

Low risk. Keep windows open; consider allergy meds only if sensitive.

Enjoy outdoor activities.

The season is compressed: alder stirs first, and birch — the region’s signature spring pollen — peaks through May into early June. This month sits outside the usual tree pollen window for the Nordic & Baltic North pattern, so today’s tree pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. No Sweden allergy season guide is published yet, so the seasonal context here follows the Nordic & Baltic North regional pattern.

Västerås allergies today

Västerås allergies today are set by the same reading as the Västerås pollen count today: the Total Pollen Index is 35 (Low), and the tree pollen index on this page is 0.6 (Low) of it. When people ask about Västerås allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Västerås.

Allergies in Västerås follow the Sweden calendar set out on the full Västerås page — the chapters, the plants behind them, and the 5-day forecast show whether today is typical for the season or an exception to it. If you are checking allergies today in Västerås before heading outdoors, the tree pollen split on this page is the part to read: it shows whether this pollen type is doing the work today, not just how high the total sits.

Read the five-day overall trend above as the Västerås allergy forecast for the tree pollen season: it shows whether Västerås allergies are set to ease or build across the week, day by day — the days to plan outdoor time around are the ones where the overall index steps down, not just today.

See the full Västerås pollen count — all types, the overall index and today’s ranking context

Västerås grass pollen count

Västerås ragweed pollen count

See how Västerås ranks in today's pollen count rankings — the worst cities for allergies today

See Västerås on the pollen map

Every pollen type, with photos and seasons: the pollen directory

Worst cities for allergies

Tree pollen season

Find an allergist in Västerås, Sweden

Pollen indexes: a modelled pollen risk index computed by Pollen Atlas from open weather, vegetation and phenology data, calibrated against CDC/NAB season data. Plant detail: Google Pollen API. Index values are modelled, not measured counts. Sources: CDC/NAB; USA-NPN; GBIF (CC BY); ESA WorldCover (CC BY 4.0).