Grass Pollen Count in 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.
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 by type in Castejón de Henares
What is the grass pollen count in Castejón de Henares today?
The Castejón de Henares grass pollen index today is 0.6 (Low) on Pollen Atlas’s modelled 0–100 scale. Low
Modelled pollen risk index — not a measured count.
Castejón de Henares’s overall pollen count today is 10 (Low) across all types. See the full Castejón de Henares pollen count for the overall index and every type together.
Castejón de Henares is in Provincia de Guadalajara, Castille-La Mancha, Spain. Its population is 108 (GeoNames).
Castejón de Henares Grass Pollen Count: 5-Day Forecast
| Day | Overall index | Category |
|---|---|---|
| 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 models the daily detail as an overall index: day-by-day splits by individual pollen type are not part of the modelled data, so this table shows Castejón de Henares’s overall trend across the week. Today’s grass pollen reading is the headline above.
Species driving Castejón de Henares’s grass pollen
The modelled data reports grass as one combined index — there is no species-by-species split for grass anywhere in the data, so this page does not invent one. Today’s modelled grass index for Castejón de Henares is 0.6 (Low), and the 5-day overall trend above shows the shape of the week.
As regional context only — not as today’s readings — 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.
Plants affecting Castejón de Henares now — grass pollen
Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Castejón de Henares. The type summary stands: grass pollen reads 0.6 (Low) today.
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’s readings.
Plant detail returns here automatically on any day the feed includes it.
What this grass pollen level means
Low risk. Keep windows open; consider allergy meds only if sensitive.
Enjoy outdoor activities.
Grasses build from spring and peak from April into June, earlier in the south. This month sits outside the usual grass pollen window for the Mediterranean pattern, so today’s grass pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. No Spain allergy season guide is published yet, so the seasonal context here follows the Mediterranean regional pattern.
Castejón de Henares allergies today
Castejón de Henares allergies today are set by the same reading as the Castejón de Henares pollen count today: the Total Pollen Index is 10 (Low), and the grass pollen index on this page is 0.6 (Low) of it. When people ask about Castejón de Henares allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Castejón de Henares.
Allergies in Castejón de Henares follow the Spain calendar set out on the full Castejón de Henares page — the chapters, the plants behind them, and the 5-day forecast 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 grass pollen split on this page is the part to read: it shows whether this pollen type is doing the work today, not just how high the total sits.
Read the five-day overall trend above as the Castejón de Henares allergy forecast for the grass pollen season: it shows whether Castejón de Henares allergies are set to ease or build across the week, day by day — the days to plan outdoor time around are the ones where the overall index steps down, not just today.
Castejón de Henares tree pollen count
Castejón de Henares ragweed pollen count
See Castejón de Henares on the pollen map
Every pollen type, with photos and seasons: the pollen directory
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).