Soisy-sur-Seine, France Pollen Count Today
Soisy-sur-Seine, France · Updated Saturday, November 7, 2026
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).
Soisy-sur-Seine, France
Weeds Index
How active weeds pollen is today (0–100).
Soisy-sur-Seine, France
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Soisy-sur-Seine Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count Soisy-sur-Seine residents check each morning
The Soisy-sur-Seine pollen count today is 35 (Low). The main driver is Ragweed, with weed pollen at 41 today. That total sits on a narrow base: weed pollen is 41 while tree pollen is just 31 and grass pollen 0.6. Plant-by-plant detail for Soisy-sur-Seine, France follows, along with the outlook for the days ahead. Pollen Atlas updated this count on Saturday, November 7, 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 weed pollen or mold, reading noticeably higher than the rest, which is why the split is printed on every Soisy-sur-Seine page.
Fall is ragweed season across most of the United States: ragweed plants release pollen from late summer into autumn, and weed pollen is typically the last major outdoor pollen category to fade as the weather cools. That pattern is why an autumn total is so often weed-led even when the headline number is low — tree and grass pollen have usually receded by then, leaving weed pollen, and on damp days mold, to make up most of what the index records.
To see whether today’s pollen level holds, check the 5-day Soisy-sur-Seine pollen forecast below — it is currently mixed, with Monday the highest day in the window.
This is the pollen count Soisy-sur-Seine residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Soisy-sur-Seine pollen count today?
The Soisy-sur-Seine pollen count today is 35 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.
Short answer for anyone searching pollen count today Soisy-sur-Seine: this page is updated every morning with the day’s modelled reading.
Soisy-sur-Seine allergies today
Soisy-sur-Seine allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 35 (Low), driven mainly by Ragweed. When people ask about Soisy-sur-Seine allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Soisy-sur-Seine.
Allergies in Soisy-sur-Seine 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 Soisy-sur-Seine 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 Soisy-sur-Seine allergy forecast: today reads 35 (Low), and the day-by-day outlook shows whether Soisy-sur-Seine 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 Soisy-sur-Seine today records is this same combined reading — tree, grass, weed and mold in one index.
The Soisy-sur-Seine allergy count today is 35 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Soisy-sur-Seine: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Saturday, November 7 | 35 | Moderate |
| Sunday, November 8 | 35 | Moderate |
| Monday, November 9 | 38 | Moderate |
| Tuesday, November 10 | 14 | Low |
| Wednesday, November 11 | 24 | Low |
Pollen Atlas forecasts Soisy-sur-Seine’s pollen count to peak on Monday at 38 (Moderate) over the next 5 days.
Pollen by type in Soisy-sur-Seine
What is driving Soisy-sur-Seine’s pollen today
The shape of today’s 35 (Low) is set by weed pollen at 41 (Moderate on its own scale) — about 56% of the four category readings added together, 10 points clear of the next category, tree pollen at 31. A weed-led total is the classic late-year shape: tree and grass pollen have usually receded, leaving weed pollen — and on damp days mold — to make up most of what the index records. Weed pollen leading in November runs against the usual calendar — the France weed chapter runs August to October — so today’s lead is the model outranking the pattern, and this page reports the modelled reading first.
In the plant detail, Grasses (grass) carries the strongest single plant reading, at a Universal Pollen Index of 1 (Very Low), followed by Mugwort at 1. No France allergy season guide is published yet to cross-reference these names against — they are today’s measured plant detail for Soisy-sur-Seine, ranked by plant index.
Across the five-day window the Total Pollen Index runs from 14 to 38, changing band 1 time. Today’s 35 sits 6 points above the window’s average of 29.2 — a moving window, worth reading day by day rather than from the average.
Plants affecting Soisy-sur-Seine now
Two plants are listed in today’s detail for Soisy-sur-Seine, shown highest plant index first.
- Grasses (grass): Universal Pollen Index 1 (Very Low) — out of season
- Mugwort (weed): Universal Pollen Index 1 (Very Low) — out of season
Every pollen type, with photos and seasons: the pollen directory.
Soisy-sur-Seine pollen through the year
Chapter by chapter, the Soisy-sur-Seine pollen year runs like this:
- Hazel and alder open from February, and birch leads the spring peak through April and into May.
- Grasses hold from May through July, cresting in late May and June.
- 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 Soisy-sur-Seine — 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 Soisy-sur-Seine pollen count rankings and Soisy-sur-Seine on the pollen heatmap.
How to read this index
Pollen Atlas reports the Soisy-sur-Seine 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 even in a month when Soisy-sur-Seine, France pollen is usually more active. 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.
Soisy-sur-Seine in today’s national picture
At 35 (Low), Soisy-sur-Seine ranks joint 6310th of the 90896 cities Pollen Atlas tracks today — in the middle of the national table. The highest reading in the country today is Beja, Portugal at 52, and the lowest is Los Ángeles de San Rafael, Spain at 5. The whole table spans 47 points today — a wide-open day, when the top and bottom of the table are effectively in different seasons.
Around Soisy-sur-Seine: Évry, France (2 km away) reads 35 (Low); Ris-Orangis, France (3 km away) reads 35 (Low); Étiolles, France (3 km away) reads 35 (Low). Soisy-sur-Seine reads exactly level with its nearest tracked neighbour today. Across France’s 8633 tracked cities, today runs from 5 in Saint-Étienne to 50 in Toulon.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Soisy-sur-Seine resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Soisy-sur-Seine, 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.
Soisy-sur-Seine in its local area
Soisy-sur-Seine is in Essonne, Île-de-France, France. Its population is 7,552 (GeoNames).
Across France’s 8633 tracked cities, Soisy-sur-Seine ranks joint 2888th today.
Like every Pollen Atlas city page, the Soisy-sur-Seine, France pollen count is refreshed each morning.
Nearby cities
- Évry pollen count (2 km away)
- Ris-Orangis pollen count (3 km away)
- Étiolles pollen count (3 km away)
- Saint-Germain-lès-Corbeil pollen count (4 km away)
- Tigery pollen count (4 km away)
- Grigny 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).