Grass Pollen Count in Mézy-sur-Seine, France — Today

Updated Saturday, November 7, 2026

Pollen by type in Mézy-sur-Seine

What is the grass pollen count in Mézy-sur-Seine today?

The Mézy-sur-Seine 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.

Mézy-sur-Seine’s overall pollen count today is 39 (Low) across all types. See the full Mézy-sur-Seine pollen count for the overall index and every type together.

Mézy-sur-Seine is in Yvelines, Île-de-France, France. Its population is 1,892 (GeoNames).

Mézy-sur-Seine Grass Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 739Low
Sunday, November 839Low
Monday, November 942Moderate
Tuesday, November 1025Low
Wednesday, November 1127Low

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

Species driving Mézy-sur-Seine’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 Mézy-sur-Seine 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 Mézy-sur-Seine now — grass pollen

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

Mézy-sur-Seine allergies today

Mézy-sur-Seine allergies today are set by the same reading as the Mézy-sur-Seine pollen count today: the Total Pollen Index is 39 (Low), and the grass pollen index on this page is 0.6 (Low) of it. When people ask about Mézy-sur-Seine allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Mézy-sur-Seine.

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

Mézy-sur-Seine tree pollen count

Mézy-sur-Seine ragweed pollen count

See how Mézy-sur-Seine ranks in today's pollen count rankings — the worst cities for allergies today

See Mézy-sur-Seine 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 Mézy-sur-Seine, 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).