Châtenay-en-France, France Pollen Count
Châtenay-en-France, France · Last updated Monday, November 9, 2026
This page shows the most recent reading available for Châtenay-en-France — from Monday, November 9, 2026 (1 day ago) — not today's reading.
Pollen Overview
Today's overall pollen level and the dominant type (trees, weeds, grass, or mold).
Total Pollen Index
The combined pollen level across all types (0–100).
Châtenay-en-France, France
Trees Index
How active trees pollen is today (0–100).
Châtenay-en-France, France
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Châtenay-en-France Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
This reading is the forecast point shared with Villeron, France — 3 nearby places use the same point; Châtenay-en-France is 5.7 km from it.
Pollen count Châtenay-en-France residents check each morning
The Châtenay-en-France pollen count today is 30 (Low). No single plant stands out in today’s readings; the Tree category is the one the index is led by. The full split is tree pollen 30, grass pollen 0.6, weed pollen 10. Below, the plant detail and the multi-day outlook show whether today is the pattern or the exception. Pollen Atlas updated this count on Monday, November 9, 2026.
A Low band on the Pollen Atlas index means the Total Pollen Index has stayed in the lower part of the 0–100 scale. Readings in this band are built from low individual category values rather than from one large spike, and the category split above matters more than the headline number: a low total can still contain one category, such as tree pollen, reading noticeably higher than the rest, which is why the split is printed on every Châtenay-en-France page.
Today’s reading for this city is quiet across the board, and a quiet day is best understood comparatively: the split shows no category carrying the total, and the plant section shows nothing reading high. Seasonal expectations set the background — which pollen types are common in this region at this time of year — but they never override the modelled value. This page reports the modelled reading first, and uses seasonal context only to explain the shape of the numbers it has already shown.
To see whether today’s pollen level holds, check the 5-day Châtenay-en-France pollen forecast below — it is currently mixed, with Monday the highest day in the window.
This is the pollen count Châtenay-en-France residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Châtenay-en-France pollen count today?
The Châtenay-en-France pollen count today is 30 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Tree.
Short answer for anyone searching pollen count today Châtenay-en-France: this page is updated every morning with the day’s modelled reading.
Châtenay-en-France allergies today
Châtenay-en-France allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 30 (Low), driven mainly by Tree. When people ask about Châtenay-en-France allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Châtenay-en-France.
Allergies in Châtenay-en-France follow the France calendar set out below — the chapters, the plants behind them, and the 5-day forecast on this page show whether today is typical for the season or an exception to it. If you are checking allergies today in Châtenay-en-France before heading outdoors, the split at the top of this page is the part to read: it shows which pollen is doing the work today, not just how high the total sits.
Read the five-day table on this page as the Châtenay-en-France allergy forecast: today reads 30 (Low), and the day-by-day outlook shows whether Châtenay-en-France allergies are set to ease or build across the week — the days to plan outdoor time around are the ones where the index steps down, not just today.
In practice, the allergy count Châtenay-en-France today records is this same combined reading — tree, grass, weed and mold in one index.
The Châtenay-en-France allergy count today is 30 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Châtenay-en-France: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Monday, November 9 | 30 | Low |
| Tuesday, November 10 | 12 | Low |
| Wednesday, November 11 | 28 | Low |
| Thursday, November 12 | 29 | Low |
| Friday, November 13 | 28 | Low |
Pollen Atlas forecasts Châtenay-en-France’s pollen count to peak on Monday at 30 (Low) over the next 5 days.
Pollen by type in Châtenay-en-France
What is driving Châtenay-en-France’s pollen today
The shape of today’s 30 (Low) is set by tree pollen at 30 (Low on its own scale) — about 74% of the four category readings added together, 20 points clear of the next category, weed pollen at 10. Tree readings are the fastest-moving of the four in their season, because species pollinate in sequence — a tree-led total can change character within a week. Tree pollen leading in November runs against the usual calendar — the France tree chapter runs February to May — so today’s lead is the model outranking the pattern, and this page reports the modelled reading first.
Plant-level detail is not in today’s feed for Châtenay-en-France, so the drivers have to be read from the category split above — it shows how much of today’s total each category is actually carrying, and plant detail returns here automatically on any day the feed includes it.
Across the five-day window the Total Pollen Index runs from 12 to 30, never changing band. Today’s 30 sits 5 points above the window’s average of 25.4 — a moving window, worth reading day by day rather than from the average.
Plants affecting Châtenay-en-France now
Detailed plant-by-plant readings for Châtenay-en-France were not returned in today\u2019s source data, so this section summarises the pollen types the index above is built from instead of listing individual plants.
Tree pollen is one of the categories with a non-zero reading today, at 30 (Low).
Grass pollen is one of the categories with a non-zero reading today, at 0.6 (Low).
Weed pollen is one of the categories with a non-zero reading today, at 10 (Low).
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\u2019s measurements.
Plant detail returns here automatically on any day the source data includes it.
Every pollen type, with photos and seasons: the pollen directory.
Châtenay-en-France pollen through the year
Three chapters make the France pollen year, and Châtenay-en-France follows them in the Continental West order. The tree chapter: hazel and alder open from February, and birch leads the spring peak through April and into May. The grass chapter: grasses hold from May through July, cresting in late May and June. The weed chapter: mugwort and ragweed build from August, peak in September, and are ended by the first hard frost. Mold builds through the humid summer and fills the gaps between chapters.
No France allergy season guide is published yet, so this page does not single out signature pollens for Châtenay-en-France — the calendar above is the Continental West regional pattern, and the plant detail on this page names what today’s feed actually records.
November falls between the main chapters of the France pollen year — the tail of one and the approach of the next — so the calendar alone explains little today, and the modelled split above carries the story. Between them, the three chapters cover 9 months of the France year, February to October — leaving a quiet gap of roughly 3 months in the depth of the off-season. No France allergy season guide is published yet — this calendar follows the Continental West regional pattern. See Châtenay-en-France pollen count rankings and Châtenay-en-France on the pollen heatmap.
How to read this index
Pollen Atlas reports the Châtenay-en-France pollen count on a Total Pollen Index from 0 to 100, built from separate tree, grass and weed readings. The total is a summary, not an average of the three: a single strong category can lift it, and three quiet categories can hold it down whatever the month. Index values are a modelled pollen risk index computed by Pollen Atlas from open weather, vegetation and phenology data, calibrated against CDC/NAB season data, with plant detail by the Google Pollen API. The index is a modelled 0–100 scale, not a measured count, and figures update through the day, so a morning and an evening visit to this page can legitimately show different numbers.
Châtenay-en-France in today’s national picture
At 30 (Low), Châtenay-en-France ranks joint 3123rd of the 217874 cities Pollen Atlas tracks today — in the middle of the national table. The highest reading in the country today is Zuoz, Switzerland at 66, and the lowest is Извор, North Macedonia at 5. The whole table spans 61 points today — a wide-open day, when the top and bottom of the table are effectively in different seasons.
Around Châtenay-en-France: Fontenay-en-Parisis, France (1 km away) reads 30 (Low); Jagny-sous-Bois, France (2 km away) reads 30 (Low); Mareil-en-France, France (2 km away) reads 30 (Low). Châtenay-en-France reads exactly level with its nearest tracked neighbour today. Across France’s 32002 tracked cities, today runs from 5 in Strasbourg to 58 in Cervera de la Marenda.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Châtenay-en-France resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Châtenay-en-France, France can test whether tree, grass, weed or mold is the category that matters for you — the four readings at the top of this page are the starting point for that conversation.
Châtenay-en-France in its local area
Châtenay-en-France is in Val d'Oise, Île-de-France, France. Its population is 64 (GeoNames).
Châtenay-en-France sits 6.2 km west of Villeron, France — the anchor of the forecast-point group this reading belongs to. Within the group of 3, Châtenay-en-France ranks joint 1st; across France’s 32002 tracked cities, it ranks joint 852nd today.
Like every Pollen Atlas city page, the Châtenay-en-France, France pollen count is refreshed each morning.
Nearby cities
- Fontenay-en-Parisis pollen count (1 km away)
- Jagny-sous-Bois pollen count (2 km away)
- Mareil-en-France pollen count (2 km away)
- Le Plessis-Luzarches pollen count (3 km away)
- Puiseux-en-France pollen count (3 km away)
- Marly-la-Ville pollen count (4 km away)
From Pollen Atlas News
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).