Tree Pollen Count in Bréançon, France

Last updated Sunday, November 8, 2026

This page shows the most recent reading available for Bréançon — from Sunday, November 8, 2026 (1 day ago) — not today's reading.

This reading is the forecast point shared with Cormeilles-en-Vexin, France — 7 nearby places use the same point; Bréançon is 2.9 km from it.

Pollen by type in Bréançon

What is the tree pollen count in Bréançon today?

The Bréançon tree pollen index today is 25 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Bréançon’s overall pollen count today is 53 (Moderate) across all types. See the full Bréançon pollen count for the overall index and every type together.

Bréançon is in Val d'Oise, Île-de-France, France. Its population is 356 (GeoNames).

Bréançon Tree Pollen Count: 5-Day Forecast

DayOverall indexCategory
Sunday, November 853Moderate
Monday, November 944Moderate
Tuesday, November 1042Moderate
Wednesday, November 1141Moderate
Thursday, November 1255Moderate

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

Species driving Bréançon’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 25 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.

Plants affecting Bréançon now — tree pollen

Detailed plant-by-plant readings for the tree pollen category were not returned in today’s source data for Bréançon. The type summary stands: tree pollen reads 25 (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.

Bréançon allergies today

Bréançon allergies today are set by the same reading as the Bréançon pollen count today: the Total Pollen Index is 53 (Moderate), and the tree pollen index on this page is 25 (Low) of it. When people ask about Bréançon allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Bréançon.

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

Bréançon grass pollen count

Bréançon ragweed pollen count

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

See Bréançon 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 Bréançon, 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).