Ragweed Pollen Count in Héricy, France — Today

Pollen by type in Héricy

• Héricy tree pollen count
• Héricy grass pollen count
• Héricy pollen count

What is the ragweed pollen count in Héricy today?

The Héricy ragweed pollen index today is 37 (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 Héricy today. See the full Héricy pollen count for the overall index and every type together.

Héricy is in Seine-et-Marne, Île-de-France, France. Its population is 2,842 (GeoNames).

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

Species driving Héricy’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 37 (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 Héricy now — ragweed pollen

Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for Héricy. The type summary stands: ragweed pollen reads 37 (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.

Héricy allergies today

Héricy allergies today are set by the same reading as the Héricy pollen count today: the Total Pollen Index is 32 (Low), and the ragweed pollen index on this page is 37 (Low) of it. When people ask about Héricy allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Héricy.

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