Corroios, Portugal Pollen Count Today
Corroios, Portugal · 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).
Corroios, Portugal
Weeds Index
How active weeds pollen is today (0–100).
Corroios, Portugal
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Corroios Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count Corroios residents check each morning
The Corroios pollen count today is 23 (Low). The main driver is Ragweed, with weed pollen at 26 today. Weed pollen leads the split at 26 (Low on its own scale), followed by tree pollen at 25 and grass pollen at 3. Below, the plant detail and the multi-day outlook show whether today is the pattern or the exception. 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 Corroios 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 Corroios pollen forecast below — it is currently easing, with Saturday the highest day in the window.
This is the pollen count Corroios residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Corroios pollen count today?
The Corroios pollen count today is 23 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.
Short answer for anyone searching pollen count today Corroios: this page is updated every morning with the day’s modelled reading.
Corroios allergies today
Corroios allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 23 (Low), driven mainly by Ragweed. When people ask about Corroios allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Corroios.
Allergies in Corroios follow the Portugal 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 Corroios 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 Corroios allergy forecast: today reads 23 (Low), and the day-by-day outlook shows whether Corroios 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 Corroios today records is this same combined reading — tree, grass, weed and mold in one index.
The Corroios allergy count today is 23 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Corroios: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Saturday, November 7 | 23 | Low |
| Sunday, November 8 | 10 | Low |
| Monday, November 9 | 10 | Low |
| Tuesday, November 10 | 9 | Low |
| Wednesday, November 11 | 9 | Low |
Pollen Atlas forecasts Corroios’s pollen count to peak on Saturday at 23 (Low) over the next 5 days.
Pollen by type in Corroios
What is driving Corroios’s pollen today
The shape of today’s 23 (Low) is set by weed pollen at 26 (Low on its own scale) — about 48% of the four category readings added together, 1 points clear of the next category, tree pollen at 25. 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 is the Portugal calendar working as expected — November falls in the closing weeks of the country’s weed chapter.
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 Portugal allergy season guide is published yet to cross-reference these names against — they are today’s measured plant detail for Corroios, ranked by plant index.
Across the five-day window the Total Pollen Index runs from 9 to 23, never changing band. Today’s 23 sits 11 points above the window’s average of 12.2 — a moving window, worth reading day by day rather than from the average.
Plants affecting Corroios now
Two plants are listed in today’s detail for Corroios, shown highest plant index first.
- Grasses (grass): Universal Pollen Index 1 (Very Low) — out of season
- Mugwort (weed): Universal Pollen Index 1 (Very Low) — in season
Every pollen type, with photos and seasons: the pollen directory.
Corroios pollen through the year
Three chapters make the Portugal pollen year, and Corroios follows them in the Mediterranean order. The tree chapter: cypress opens the year in winter, hazel and alder follow early, and olive carries the spring peak from April into May. The grass chapter: grasses build from spring and peak from April into June, earlier in the south. The weed chapter: weeds — pellitory through the warm months and ragweed in late summer where it has spread — close a long season that can run into November.
No Portugal allergy season guide is published yet, so this page does not single out signature pollens for Corroios — the calendar above is the Mediterranean regional pattern, and the plant detail on this page names what today’s feed actually records.
November in Corroios sits inside the weed chapter of the Portugal year, in its closing weeks — the part of the calendar today’s readings should be judged against. Between them, the three chapters cover 10 months of the Portugal year, January to November — a long season by national standards, with only a short quiet gap. No Portugal allergy season guide is published yet — this calendar follows the Mediterranean regional pattern. See Corroios pollen count rankings and Corroios on the pollen heatmap.
How to read this index
Pollen Atlas reports the Corroios 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 Corroios, Portugal 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.
Corroios in today’s national picture
At 23 (Low), Corroios ranks joint 40203rd 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 Corroios: Laranjeiro, Portugal (2 km away) reads 23 (Low); Amora, Portugal (3 km away) reads 23 (Low); Piedade, Portugal (3 km away) reads 23 (Low). Corroios reads exactly level with its nearest tracked neighbour today. Across Portugal’s 845 tracked cities, today runs from 6 in Porto Moniz to 52 in Beja.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Corroios resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every ragweed season, allergists in Corroios, Portugal 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.
Corroios in its local area
Across Portugal’s 845 tracked cities, Corroios ranks joint 265th today.
Like every Pollen Atlas city page, the Corroios, Portugal pollen count is refreshed each morning.
Nearby cities
- Laranjeiro pollen count (2 km away)
- Amora pollen count (3 km away)
- Piedade pollen count (3 km away)
- Sobreda pollen count (4 km away)
- Pragal pollen count (4 km away)
- Seixal pollen count (4 km away)
From Pollen Atlas News
See how Corroios 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).