Ragweed Pollen Count in Jassans-Riottier, France — Today

Updated Saturday, November 7, 2026

Pollen by type in Jassans-Riottier

What is the ragweed pollen count in Jassans-Riottier today?

The Jassans-Riottier ragweed pollen index today is 49 (Moderate) on Pollen Atlas’s modelled 0–100 scale. Moderate

Modelled pollen risk index — not a measured count.

Ragweed pollen is the dominant allergen in Jassans-Riottier today. See the full Jassans-Riottier pollen count for the overall index and every type together.

Jassans-Riottier is in Ain, Auvergne-Rhône-Alpes, France. Its population is 5,839 (GeoNames).

Jassans-Riottier Ragweed Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 739Low
Sunday, November 842Moderate
Monday, November 930Low
Tuesday, November 1028Low
Wednesday, November 1127Low

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 Jassans-Riottier’s overall trend across the week. Today’s ragweed pollen reading is the headline above.

Species driving Jassans-Riottier’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 49 (Moderate) 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 Jassans-Riottier now — ragweed pollen

Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for Jassans-Riottier. The type summary stands: ragweed pollen reads 49 (Moderate) today.

In the Continental West pattern, the plants that typically shape this city’s year are early hazel and alder, a birch-led spring, late-spring grasses, and late-summer mugwort and ragweed — 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

Moderate risk. If you have allergies, consider meds and limit exposure during peak hours.

Keep windows closed at midday; shower after being outside.

Mugwort and ragweed build from August, peak in September, and are ended by the first hard frost. This month sits outside the usual ragweed pollen window for the Continental West pattern, so today’s ragweed pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. No France allergy season guide is published yet, so the seasonal context here follows the Continental West regional pattern.

Jassans-Riottier allergies today

Jassans-Riottier allergies today are set by the same reading as the Jassans-Riottier pollen count today: the Total Pollen Index is 39 (Low), and the ragweed pollen index on this page is 49 (Moderate) of it. When people ask about Jassans-Riottier allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Jassans-Riottier.

Allergies in Jassans-Riottier follow the France calendar set out on the full Jassans-Riottier 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 Jassans-Riottier 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 Jassans-Riottier allergy forecast for the ragweed pollen season: it shows whether Jassans-Riottier 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 Jassans-Riottier pollen count — all types, the overall index and today’s ranking context

Jassans-Riottier tree pollen count

Jassans-Riottier grass pollen count

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

See Jassans-Riottier on the pollen map

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

Worst cities for allergies

Ragweed season

Find an allergist in Jassans-Riottier, France

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).