Grass Pollen Count in Castex, France

Last updated Saturday, November 7, 2026

This page shows the most recent reading available for Castex — from Saturday, November 7, 2026 (1 day ago) — not today's reading.

This reading is the forecast point shared with La Bastide-de-Besplas, France — 11 nearby places use the same point; Castex is 5 km from it.

Pollen by type in Castex

What is the grass pollen count in Castex today?

The Castex 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.

Castex’s overall pollen count today is 31 (Low) across all types. See the full Castex pollen count for the overall index and every type together.

Castex is in Ariège, Occitanie, France. Its population is 96 (GeoNames).

Castex Grass Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 731Low
Sunday, November 831Low
Monday, November 930Low
Tuesday, November 1030Low
Wednesday, November 1130Low

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 Castex’s overall trend across the week. Today’s grass pollen reading is the headline above.

Species driving Castex’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 Castex 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 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.

Plants affecting Castex now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Castex. The type summary stands: grass pollen reads 0.6 (Low) today.

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’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 hold from May through July, cresting in late May and June. This month sits outside the usual grass pollen window for the Continental West pattern, so today’s grass pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. No France allergy season guide is published yet, so the seasonal context here follows the Continental West regional pattern.

Castex allergies today

Castex allergies today are set by the same reading as the Castex pollen count today: the Total Pollen Index is 31 (Low), and the grass pollen index on this page is 0.6 (Low) of it. When people ask about Castex allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Castex.

Allergies in Castex follow the France calendar set out on the full Castex 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 Castex 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 Castex allergy forecast for the grass pollen season: it shows whether Castex 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.

See the full Castex pollen count — all types, the overall index and today’s ranking context

Castex tree pollen count

Castex ragweed pollen count

See how Castex ranks in today's pollen count rankings — the worst cities for allergies today

See Castex on the pollen map

Every pollen type, with photos and seasons: the pollen directory

Worst cities for allergies

Grass pollen season

Find an allergist in Castex, France

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).