Tréhorenteuc, France Pollen Count
Tréhorenteuc, France · Last updated Sunday, November 8, 2026
This page shows the most recent reading available for Tréhorenteuc — from Sunday, November 8, 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).
Tréhorenteuc, France
Weeds Index
How active weeds pollen is today (0–100).
Tréhorenteuc, France
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Tréhorenteuc Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
This reading is the forecast point shared with Néant-sur-Yvel, France — 2 nearby places use the same point; Tréhorenteuc is 5.6 km from it.
Pollen count Tréhorenteuc residents check each morning
The Tréhorenteuc pollen count today is 50 (Moderate). The main driver is Ragweed, with weed pollen at 50 today. Weed pollen leads the split at 50 (Moderate on its own scale), followed by tree pollen at 26 and grass pollen at 0.6. Below, the plant detail and the multi-day outlook show whether today is the pattern or the exception. Pollen Atlas updated this count on Sunday, November 8, 2026.
A Moderate band means the Total Pollen Index sits in the middle of the 0–100 scale — neither a quiet day nor a peak day. On moderate days the split usually explains the total: one or two categories do most of the work while the others stay low. The Tréhorenteuc split above shows exactly which categories those are today, and the forecast below shows whether the moderate reading is a plateau or a step toward a higher band.
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 Tréhorenteuc pollen forecast below — it is currently mixed, with Sunday the highest day in the window.
This is the pollen count Tréhorenteuc residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Tréhorenteuc pollen count today?
The Tréhorenteuc pollen count today is 50 out of 100 (Moderate) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.
Short answer for anyone searching pollen count today Tréhorenteuc: this page is updated every morning with the day’s modelled reading.
Tréhorenteuc allergies today
Tréhorenteuc allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 50 (Moderate), driven mainly by Ragweed. When people ask about Tréhorenteuc allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Tréhorenteuc.
Allergies in Tréhorenteuc 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 Tréhorenteuc 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 Tréhorenteuc allergy forecast: today reads 50 (Moderate), and the day-by-day outlook shows whether Tréhorenteuc 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 Tréhorenteuc today records is this same combined reading — tree, grass, weed and mold in one index.
The Tréhorenteuc allergy count today is 50 (Moderate) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Tréhorenteuc: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Sunday, November 8 | 50 | Moderate |
| Monday, November 9 | 50 | Moderate |
| Tuesday, November 10 | 33 | Low |
| Wednesday, November 11 | 32 | Low |
| Thursday, November 12 | 47 | Moderate |
Pollen Atlas forecasts Tréhorenteuc’s pollen count to peak on Sunday at 50 (Moderate) over the next 5 days.
Pollen by type in Tréhorenteuc
What is driving Tréhorenteuc’s pollen today
The shape of today’s 50 (Moderate) is set by weed pollen at 50 (Moderate on its own scale) — about 65% of the four category readings added together, 24 points clear of the next category, tree pollen at 26. 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.
Plant-level detail is not in today’s feed for Tréhorenteuc, 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 32 to 50, changing band 2 times. Today’s 50 sits 8 points above the window’s average of 42.4 — a moving window, worth reading day by day rather than from the average.
Plants affecting Tréhorenteuc now
Detailed plant-by-plant readings for Tréhorenteuc 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 26 (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 50 (Moderate).
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.
Tréhorenteuc pollen through the year
Three chapters make the France pollen year, and Tréhorenteuc 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 Tréhorenteuc — 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 Tréhorenteuc pollen count rankings and Tréhorenteuc on the pollen heatmap.
How to read this index
Pollen Atlas reports the Tréhorenteuc 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 Tréhorenteuc, 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.
Tréhorenteuc in today’s national picture
At 50 (Moderate), Tréhorenteuc ranks joint 17128th of the 217874 cities Pollen Atlas tracks today — in the middle of the national table. The highest reading in the country today is Tignes, France at 66, and the lowest is Aroniáda, Greece 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 Tréhorenteuc: Néant-sur-Yvel, France (3 km away) reads 50 (Moderate); Campénéac, France (6 km away) reads 50 (Moderate); Loyat, France (7 km away) reads 51 (Moderate). Tréhorenteuc reads exactly level with its nearest tracked neighbour today. Across France’s 32002 tracked cities, today runs from 5 in Saint-Étienne to 66 in Tignes.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Tréhorenteuc resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Tréhorenteuc, 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.
Tréhorenteuc in its local area
Tréhorenteuc is in Morbihan, Brittany, France. Its population is 127 (GeoNames).
Tréhorenteuc sits 3.1 km east of Néant-sur-Yvel, France — the anchor of the forecast-point group this reading belongs to. Within the group of 2, Tréhorenteuc ranks joint 1st; across France’s 32002 tracked cities, it ranks joint 10510th today.
Like every Pollen Atlas city page, the Tréhorenteuc, France pollen count is refreshed each morning.
Nearby cities
- Néant-sur-Yvel pollen count (3 km away)
- Campénéac pollen count (6 km away)
- Loyat pollen count (7 km away)
- Mauron pollen count (8 km away)
- Concoret pollen count (9 km away)
- Paimpont pollen count (9 km away)
From Pollen Atlas News
See how Tréhorenteuc ranks in today's pollen count rankings — the worst cities for allergies today
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).