Ragweed Pollen Count in Roztoky u Semil, Czechia — Today

Updated Monday, November 9, 2026

This reading is the forecast point shared with Zlatá Olešnice, Czechia — 3 nearby places use the same point; Roztoky u Semil is 6.3 km from it.

Pollen by type in Roztoky u Semil

What is the ragweed pollen count in Roztoky u Semil today?

The Roztoky u Semil ragweed pollen index today is 1 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Roztoky u Semil’s overall pollen count today is 17 (Low) across all types. See the full Roztoky u Semil pollen count for the overall index and every type together.

Roztoky u Semil is in Okres Semily, Liberec Region, Czechia. Its population is 113 (GeoNames).

Roztoky u Semil Ragweed Pollen Count: 5-Day Forecast

DayOverall indexCategory
Monday, November 917Low
Tuesday, November 1011Low
Wednesday, November 118Low
Thursday, November 1216Low
Friday, November 1317Low

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 Roztoky u Semil’s overall trend across the week. Today’s ragweed pollen reading is the headline above.

Species driving Roztoky u Semil’s ragweed 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: ragweed pollen reads 1 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.

How to read this: the “ragweed” figure on this site is the modelled weed pollen index — the weed group (ragweed + mugwort) — printed under the ragweed name the rankings use.

Plants affecting Roztoky u Semil now — ragweed pollen

Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for Roztoky u Semil. The type summary stands: ragweed pollen reads 1 (Low) today.

In the Continental East pattern, the plants that typically shape this city’s year are a birch-led spring, late-spring and summer grasses, and a strong late-summer ragweed chapter — 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 ragweed pollen level means

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

Enjoy outdoor activities.

Ragweed builds from mid-August, peaks in September — strongest across the Pannonian plain — and is ended by the first hard frost. This month sits outside the usual ragweed pollen window for the Continental East pattern, so today’s ragweed pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. No Czechia allergy season guide is published yet, so the seasonal context here follows the Continental East regional pattern.

Roztoky u Semil allergies today

Roztoky u Semil allergies today are set by the same reading as the Roztoky u Semil pollen count today: the Total Pollen Index is 17 (Low), and the ragweed pollen index on this page is 1 (Low) of it. When people ask about Roztoky u Semil allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Roztoky u Semil.

Allergies in Roztoky u Semil follow the Czechia calendar set out on the full Roztoky u Semil 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 Roztoky u Semil before heading outdoors, the ragweed 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 Roztoky u Semil allergy forecast for the ragweed pollen season: it shows whether Roztoky u Semil 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 Roztoky u Semil pollen count — all types, the overall index and today’s ranking context

Roztoky u Semil tree pollen count

Roztoky u Semil grass pollen count

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

See Roztoky u Semil on the pollen map

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

Worst cities for allergies

Ragweed season

Find an allergist in Roztoky u Semil, Czechia

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).