Grass Pollen Count in São Tiago de Custoias, Portugal — Today

Pollen by type in São Tiago de Custoias

• São Tiago de Custoias tree pollen count
• São Tiago de Custoias ragweed pollen count
• São Tiago de Custoias pollen count

What is the grass pollen count in São Tiago de Custoias today?

The São Tiago de Custoias grass pollen index today is 1 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

São Tiago de Custoias’s overall pollen count today is 21 (Low) across all types. See the full São Tiago de Custoias pollen count for the overall index and every type together.

São Tiago de Custoias is in Matosinhos, Porto, Portugal. Its population is 19,000 (GeoNames).

São Tiago de Custoias Grass Pollen Count: 5-Day Forecast

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 São Tiago de Custoias’s overall trend across the week. Today’s grass pollen reading is the headline above.

Species driving São Tiago de Custoias’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 São Tiago de Custoias 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 São Tiago de Custoias now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for São Tiago de Custoias. 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.

São Tiago de Custoias allergies today

São Tiago de Custoias allergies today are set by the same reading as the São Tiago de Custoias pollen count today: the Total Pollen Index is 21 (Low), and the grass pollen index on this page is 1 (Low) of it. When people ask about São Tiago de Custoias allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for São Tiago de Custoias.

Allergies in São Tiago de Custoias follow the Portugal calendar set out on the full São Tiago de Custoias 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 São Tiago de Custoias 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 São Tiago de Custoias allergy forecast for the grass pollen season: it shows whether São Tiago de Custoias 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.