Tree Pollen Count in Alter do Chão, Portugal — Today
Updated Saturday, November 7, 2026
Pollen by type in Alter do Chão
What is the tree pollen count in Alter do Chão today?
The Alter do Chão tree pollen index today is 56 (Moderate) on Pollen Atlas’s modelled 0–100 scale. Moderate
Modelled pollen risk index — not a measured count.
Alter do Chão’s overall pollen count today is 46 (Moderate) across all types. See the full Alter do Chão pollen count for the overall index and every type together.
Alter do Chão is in Alter do Chão, Portalegre, Portugal. Its population is 2,600 (GeoNames).
Alter do Chão Tree Pollen Count: 5-Day Forecast
| Day | Overall index | Category |
|---|---|---|
| Saturday, November 7 | 46 | Moderate |
| Sunday, November 8 | 22 | Low |
| Monday, November 9 | 21 | Low |
| Tuesday, November 10 | 19 | Low |
| Wednesday, November 11 | 18 | 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 Alter do Chão’s overall trend across the week. Today’s tree pollen reading is the headline above.
Species driving Alter do Chão’s tree pollen
Species-level counts are not part of the modelled data Pollen Atlas publishes — the modelled index is reported per pollen type, not per species — so this section gives the type summary: tree pollen reads 56 (Moderate) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.
Plants affecting Alter do Chão now — tree pollen
Detailed plant-by-plant readings for the tree pollen category were not returned in today’s source data for Alter do Chão. The type summary stands: tree pollen reads 56 (Moderate) 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 tree pollen level means
Moderate risk. If you have allergies, consider meds and limit exposure during peak hours.
Keep windows closed at midday; shower after being outside.
Cypress opens the year in winter, hazel and alder follow early, and olive carries the spring peak from April into May. This month sits outside the usual tree pollen window for the Mediterranean pattern, so today’s tree 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.
Alter do Chão allergies today
Alter do Chão allergies today are set by the same reading as the Alter do Chão pollen count today: the Total Pollen Index is 46 (Moderate), and the tree pollen index on this page is 56 (Moderate) of it. When people ask about Alter do Chão allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Alter do Chão.
Allergies in Alter do Chão follow the Portugal calendar set out on the full Alter do Chão 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 Alter do Chão before heading outdoors, the tree 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 Alter do Chão allergy forecast for the tree pollen season: it shows whether Alter do Chão 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 Alter do Chão pollen count — all types, the overall index and today’s ranking context
Alter do Chão grass pollen count
Alter do Chão ragweed pollen count
See how Alter do Chão ranks in today's pollen count rankings — the worst cities for allergies today
See Alter do Chão 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).