Ragweed Pollen Count in Lyas, France

Pollen by type in Lyas

• Lyas tree pollen count
• Lyas grass pollen count
• Lyas pollen count

What is the ragweed pollen count in Lyas today?

The Lyas ragweed pollen index today is 4 (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 Lyas today. See the full Lyas pollen count for the overall index and every type together.

Lyas is in Ardèche, Auvergne-Rhône-Alpes, France. Its population is 547 (GeoNames).

Lyas Ragweed Pollen Count: 5-Day Forecast

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 Lyas’s overall trend across the week. Today’s ragweed pollen reading is the headline above.

Species driving Lyas’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 4 (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 Lyas now — ragweed pollen

Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for Lyas. The type summary stands: ragweed pollen reads 4 (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.

Lyas allergies today

Lyas allergies today are set by the same reading as the Lyas pollen count today: the Total Pollen Index is 5 (Low), and the ragweed pollen index on this page is 4 (Low) of it. When people ask about Lyas allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Lyas.

Allergies in Lyas follow the France calendar set out on the full Lyas 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 Lyas 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 Lyas allergy forecast for the ragweed pollen season: it shows whether Lyas 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.