Grass Pollen Count in Le Tremblay-sur-Mauldre, France — Today

Updated Monday, November 9, 2026

This reading is the forecast point for Le Tremblay-sur-Mauldre — 4 nearby places use the same point; Le Tremblay-sur-Mauldre is 2.7 km from it.

Pollen by type in Le Tremblay-sur-Mauldre

What is the grass pollen count in Le Tremblay-sur-Mauldre today?

The Le Tremblay-sur-Mauldre 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.

Le Tremblay-sur-Mauldre’s overall pollen count today is 21 (Low) across all types. See the full Le Tremblay-sur-Mauldre pollen count for the overall index and every type together.

Le Tremblay-sur-Mauldre is in Yvelines, Île-de-France, France. Its population is 988 (GeoNames).

Le Tremblay-sur-Mauldre Grass Pollen Count: 5-Day Forecast

DayOverall indexCategory
Monday, November 921Low
Tuesday, November 1012Low
Wednesday, November 1128Low
Thursday, November 1229Low
Friday, November 1328Low

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 Tremblay-sur-Mauldre’s overall trend across the week. Today’s grass pollen reading is the headline above.

Species driving Le Tremblay-sur-Mauldre’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 Le Tremblay-sur-Mauldre 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 Le Tremblay-sur-Mauldre now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Le Tremblay-sur-Mauldre. 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.

Le Tremblay-sur-Mauldre allergies today

Le Tremblay-sur-Mauldre allergies today are set by the same reading as the Le Tremblay-sur-Mauldre pollen count today: the Total Pollen Index is 21 (Low), and the grass pollen index on this page is 0.6 (Low) of it. When people ask about Le Tremblay-sur-Mauldre allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Le Tremblay-sur-Mauldre.

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

Le Tremblay-sur-Mauldre tree pollen count

Le Tremblay-sur-Mauldre ragweed pollen count

See how Le Tremblay-sur-Mauldre ranks in today's pollen count rankings — the worst cities for allergies today

See Le Tremblay-sur-Mauldre 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 Le Tremblay-sur-Mauldre, 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).