Tree Pollen Count in Troissy, France

Last updated Monday, November 9, 2026

This page shows the most recent reading available for Troissy — from Monday, November 9, 2026 (1 day ago) — not today's reading.

This reading is the forecast point for Troissy — 5 nearby places use the same point; Troissy is 1.6 km from it.

Pollen by type in Troissy

What is the tree pollen count in Troissy today?

The Troissy tree pollen index today is 9 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Troissy’s overall pollen count today is 9 (Low) across all types. See the full Troissy pollen count for the overall index and every type together.

Troissy is in Marne, Grand Est, France. Its population is 833 (GeoNames).

Troissy Tree Pollen Count: 5-Day Forecast

DayOverall indexCategory
Monday, November 99Low
Tuesday, November 105Low
Wednesday, November 1110Low
Thursday, November 1211Low
Friday, November 1311Low

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 Troissy’s overall trend across the week. Today’s tree pollen reading is the headline above.

Species driving Troissy’s tree 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: tree pollen reads 9 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.

Plants affecting Troissy now — tree pollen

Detailed plant-by-plant readings for the tree pollen category were not returned in today’s source data for Troissy. The type summary stands: tree pollen reads 9 (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 tree pollen level means

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

Enjoy outdoor activities.

Hazel and alder open from February, and birch leads the spring peak through April and into May. This month sits outside the usual tree pollen window for the Continental West pattern, so today’s tree 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.

Troissy allergies today

Troissy allergies today are set by the same reading as the Troissy pollen count today: the Total Pollen Index is 9 (Low), and the tree pollen index on this page is 9 (Low) of it. When people ask about Troissy allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Troissy.

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

Troissy grass pollen count

Troissy ragweed pollen count

See how Troissy ranks in today's pollen count rankings — the worst cities for allergies today

See Troissy on the pollen map

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

Worst cities for allergies

Tree pollen season

Find an allergist in Troissy, 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).