Grass Pollen Count in Boissy-le-Châtel, France — Today

Updated Saturday, November 7, 2026

Pollen by type in Boissy-le-Châtel

What is the grass pollen count in Boissy-le-Châtel today?

The Boissy-le-Châtel grass pollen index today is 0.6 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Boissy-le-Châtel’s overall pollen count today is 41 (Moderate) across all types. See the full Boissy-le-Châtel pollen count for the overall index and every type together.

Boissy-le-Châtel is in Seine-et-Marne, Île-de-France, France. Its population is 2,926 (GeoNames).

Boissy-le-Châtel Grass Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 741Moderate
Sunday, November 844Moderate
Monday, November 943Moderate
Tuesday, November 1028Low
Wednesday, November 1128Low

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 Boissy-le-Châtel’s overall trend across the week. Today’s grass pollen reading is the headline above.

Species driving Boissy-le-Châtel’s grass pollen

The modelled data reports grass as one combined index — there is no species-by-species split for grass anywhere in the data, so this page does not invent one. Today’s modelled grass index for Boissy-le-Châtel is 0.6 (Low), and the 5-day overall trend above shows the shape of the week.

As regional context only — not as today’s readings — 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.

Plants affecting Boissy-le-Châtel now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Boissy-le-Châtel. The type summary stands: grass pollen reads 0.6 (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 grass pollen level means

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

Enjoy outdoor activities.

Grasses hold from May through July, cresting in late May and June. This month sits outside the usual grass pollen window for the Continental West pattern, so today’s grass 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.

Boissy-le-Châtel allergies today

Boissy-le-Châtel allergies today are set by the same reading as the Boissy-le-Châtel pollen count today: the Total Pollen Index is 41 (Moderate), and the grass pollen index on this page is 0.6 (Low) of it. When people ask about Boissy-le-Châtel allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Boissy-le-Châtel.

Allergies in Boissy-le-Châtel follow the France calendar set out on the full Boissy-le-Châtel 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 Boissy-le-Châtel before heading outdoors, the grass 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 Boissy-le-Châtel allergy forecast for the grass pollen season: it shows whether Boissy-le-Châtel 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 Boissy-le-Châtel pollen count — all types, the overall index and today’s ranking context

Boissy-le-Châtel tree pollen count

Boissy-le-Châtel ragweed pollen count

See how Boissy-le-Châtel ranks in today's pollen count rankings — the worst cities for allergies today

See Boissy-le-Châtel on the pollen map

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

Worst cities for allergies

Grass pollen season

Find an allergist in Boissy-le-Châtel, 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).