Ragweed Pollen Count in Le Grand-Serre, France — Today
Updated Monday, November 9, 2026
This reading is the forecast point for Le Grand-Serre — 4 nearby places use the same point; Le Grand-Serre is 2.2 km from it.
Pollen by type in Le Grand-Serre
What is the ragweed pollen count in Le Grand-Serre today?
The Le Grand-Serre ragweed pollen index today is 6 (Low) on Pollen Atlas’s modelled 0–100 scale. Low
Modelled pollen risk index — not a measured count.
Ragweed pollen is the dominant allergen in Le Grand-Serre today. See the full Le Grand-Serre pollen count for the overall index and every type together.
Le Grand-Serre is in Drôme, Auvergne-Rhône-Alpes, France. Its population is 821 (GeoNames).
Le Grand-Serre Ragweed Pollen Count: 5-Day Forecast
| Day | Overall index | Category |
|---|---|---|
| Monday, November 9 | 9 | Low |
| Tuesday, November 10 | 5 | Low |
| Wednesday, November 11 | 11 | Low |
| Thursday, November 12 | 5 | Low |
| Friday, November 13 | 5 | Low |
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 Le Grand-Serre’s overall trend across the week. Today’s ragweed pollen reading is the headline above.
Species driving Le Grand-Serre’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 6 (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 Le Grand-Serre now — ragweed pollen
Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for Le Grand-Serre. The type summary stands: ragweed pollen reads 6 (Low) 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
Low risk. Keep windows open; consider allergy meds only if sensitive.
Enjoy outdoor activities.
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.
Le Grand-Serre allergies today
Le Grand-Serre allergies today are set by the same reading as the Le Grand-Serre pollen count today: the Total Pollen Index is 9 (Low), and the ragweed pollen index on this page is 6 (Low) of it. When people ask about Le Grand-Serre allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Le Grand-Serre.
Allergies in Le Grand-Serre follow the France calendar set out on the full Le Grand-Serre 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 Le Grand-Serre 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 Le Grand-Serre allergy forecast for the ragweed pollen season: it shows whether Le Grand-Serre 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 Le Grand-Serre pollen count — all types, the overall index and today’s ranking context
Le Grand-Serre tree pollen count
Le Grand-Serre grass pollen count
See how Le Grand-Serre ranks in today's pollen count rankings — the worst cities for allergies today
See Le Grand-Serre on the pollen map
Every pollen type, with photos and seasons: the pollen directory
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).