Castejón de Henares, Spain Pollen Count
Castejón de Henares, Spain · Last updated Sunday, November 8, 2026
This page shows the most recent reading available for Castejón de Henares — 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).
Castejón de Henares, Spain
Weeds Index
How active weeds pollen is today (0–100).
Castejón de Henares, Spain
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Castejón de Henares Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
This reading is the forecast point shared with Matillas, Spain — 5 nearby places use the same point; Castejón de Henares is 4 km from it.
Pollen count Castejón de Henares residents check each morning
The Castejón de Henares pollen count today is 10 (Low). The main driver is Ragweed, with weed pollen at 10 today. The full split is tree pollen 1, grass pollen 0.6, weed pollen 10. The sections below break that headline number down by plant, by day and by what the band means in practice. Pollen Atlas updated this count on Sunday, November 8, 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 Castejón de Henares 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 Castejón de Henares pollen forecast below — it is currently easing, with Sunday the highest day in the window.
This is the pollen count Castejón de Henares residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Castejón de Henares pollen count today?
The Castejón de Henares pollen count today is 10 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.
Short answer for anyone searching pollen count today Castejón de Henares: this page is updated every morning with the day’s modelled reading.
Castejón de Henares allergies today
Castejón de Henares allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 10 (Low), driven mainly by Ragweed. When people ask about Castejón de Henares allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Castejón de Henares.
Allergies in Castejón de Henares follow the Spain 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 Castejón de Henares 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 Castejón de Henares allergy forecast: today reads 10 (Low), and the day-by-day outlook shows whether Castejón de Henares 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 Castejón de Henares today records is this same combined reading — tree, grass, weed and mold in one index.
The Castejón de Henares allergy count today is 10 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Castejón de Henares: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Sunday, November 8 | 10 | Low |
| Monday, November 9 | 5 | Low |
| Tuesday, November 10 | 5 | Low |
| Wednesday, November 11 | 5 | Low |
| Thursday, November 12 | 5 | Low |
Pollen Atlas forecasts Castejón de Henares’s pollen count to peak on Sunday at 10 (Low) over the next 5 days.
Pollen by type in Castejón de Henares
What is driving Castejón de Henares’s pollen today
The shape of today’s 10 (Low) is set by weed pollen at 10 (Low on its own scale) — about 86% of the four category readings added together, 9 points clear of the next category, tree pollen at 1. 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 Spain calendar working as expected — November falls in the closing weeks of the country’s weed chapter.
Plant-level detail is not in today’s feed for Castejón de Henares, 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 5 to 10, never changing band. Today’s 10 sits 4 points above the window’s average of 6 — a steady window, in which one day reads much like the next.
Plants affecting Castejón de Henares now
Detailed plant-by-plant readings for Castejón de Henares 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 1 (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 Mediterranean pattern, the plants that typically shape this city’s year are winter cypress and early hazel, spring grasses and olive, and late-summer weeds spread across a long, mild season — 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.
Castejón de Henares pollen through the year
The Castejón de Henares pollen year runs in chapters, set by the Mediterranean pattern and the Spain calendar. Trees come first: cypress opens the year in winter, hazel and alder follow early, and olive carries the spring peak from April into May. Grasses take the middle of the year: grasses build from spring and peak from April into June, earlier in the south. Weeds close it out: 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 Spain allergy season guide is published yet, so this page does not single out signature pollens for Castejón de Henares — the calendar above is the Mediterranean regional pattern, and the plant detail on this page names what today’s feed actually records.
November in Castejón de Henares sits inside the weed chapter of the Spain 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 Spain year, January to November — a long season by national standards, with only a short quiet gap. No Spain allergy season guide is published yet — this calendar follows the Mediterranean regional pattern. See Castejón de Henares pollen count rankings and Castejón de Henares on the pollen heatmap.
How to read this index
Pollen Atlas reports the Castejón de Henares 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 Castejón de Henares, Spain 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.
Castejón de Henares in today’s national picture
At 10 (Low), Castejón de Henares ranks joint 88658th 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 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 Castejón de Henares: Villaseca de Henares, Spain (3 km away) reads 9 (Low); Mandayona, Spain (4 km away) reads 9 (Low); Matillas, Spain (4 km away) reads 10 (Low). Castejón de Henares reads 1 point higher than its nearest tracked neighbour today. Across Spain’s 7800 tracked cities, today runs from 5 in Valladolid to 60 in Llançà.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Castejón de Henares resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every ragweed season, allergists in Castejón de Henares, Spain 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.
Castejón de Henares in its local area
Castejón de Henares is in Provincia de Guadalajara, Castille-La Mancha, Spain. Its population is 108 (GeoNames).
Castejón de Henares sits 4.2 km east of Matillas, Spain — the anchor of the forecast-point group this reading belongs to. Within the group of 5, Castejón de Henares ranks joint 1st; across Spain’s 7800 tracked cities, it ranks joint 3373rd today.
Like every Pollen Atlas city page, the Castejón de Henares, Spain pollen count is refreshed each morning.
Nearby cities
- Villaseca de Henares pollen count (3 km away)
- Mandayona pollen count (4 km away)
- Matillas pollen count (4 km away)
- Almadrones pollen count (4 km away)
- Mirabueno pollen count (5 km away)
- Argecilla pollen count (7 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).