Grass Pollen Count in Foz do Arelho, Portugal — Today

Updated Saturday, November 7, 2026

Pollen by type in Foz do Arelho

What is the grass pollen count in Foz do Arelho today?

The Foz do Arelho grass pollen index today is 1 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Foz do Arelho’s overall pollen count today is 19 (Low) across all types. See the full Foz do Arelho pollen count for the overall index and every type together.

Foz do Arelho is in Caldas da Rainha, Leiria, Portugal. Its population is 1,339 (GeoNames).

Foz do Arelho Grass Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 719Low
Sunday, November 814Low
Monday, November 99Low
Tuesday, November 108Low
Wednesday, November 118Low

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 Foz do Arelho’s overall trend across the week. Today’s grass pollen reading is the headline above.

Species driving Foz do Arelho’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 Foz do Arelho is 1 (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 Foz do Arelho now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Foz do Arelho. The type summary stands: grass pollen reads 1 (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 Portugal allergy season guide is published yet, so the seasonal context here follows the Mediterranean regional pattern.

Foz do Arelho allergies today

Foz do Arelho allergies today are set by the same reading as the Foz do Arelho pollen count today: the Total Pollen Index is 19 (Low), and the grass pollen index on this page is 1 (Low) of it. When people ask about Foz do Arelho allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Foz do Arelho.

Allergies in Foz do Arelho follow the Portugal calendar set out on the full Foz do Arelho 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 Foz do Arelho 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 Foz do Arelho allergy forecast for the grass pollen season: it shows whether Foz do Arelho 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 Foz do Arelho pollen count — all types, the overall index and today’s ranking context

Foz do Arelho tree pollen count

Foz do Arelho ragweed pollen count

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

See Foz do Arelho 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 Foz do Arelho, Portugal

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).