Ragweed Pollen Count in Porto Alegre, Sao Tome and Principe

Last updated Saturday, November 14, 2026

This page shows the most recent reading available for Porto Alegre — from Saturday, November 14, 2026 (1 day ago) — not today's reading.

Pollen by type in Porto Alegre

What is the ragweed pollen count in Porto Alegre today?

The Porto Alegre ragweed pollen index today is 32 (Moderate) on Pollen Atlas’s modelled 0–100 scale. Moderate

Modelled pollen risk index — not a measured count.

Porto Alegre’s overall pollen count today is 35 (Moderate) across all types. See the full Porto Alegre pollen count for the overall index and every type together.

Porto Alegre Ragweed Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 1435Moderate
Sunday, November 1530Moderate
Monday, November 1630Moderate
Tuesday, November 1730Moderate
Wednesday, November 1837Moderate

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 Porto Alegre’s overall trend across the week. Today’s ragweed pollen reading is the headline above.

Species driving Porto Alegre’s ragweed 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: ragweed pollen reads 32 (Moderate) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.

How to read this: the “ragweed” figure on this site is the modelled weed pollen index — the weed group (ragweed + mugwort) — printed under the ragweed name the rankings use.

Plants affecting Porto Alegre now — ragweed pollen

Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for Porto Alegre. The type summary stands: ragweed pollen reads 32 (Moderate) today.

In the Global pattern, the plants that shape this city’s year vary with its local climate and vegetation, and no single regional calendar is published for this area — 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 ragweed 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.

Weed pollen seasons vary with local climate and vegetation, and no regional calendar is asserted for this area. No regional calendar is asserted for this area, so today’s ragweed pollen reading is reported as a modelled index value, without placing this month inside or outside a regional window. No Sao Tome and Principe allergy season guide is published yet, so the seasonal context here follows the Global regional pattern.

Porto Alegre ragweed pollen allergies today

The ragweed pollen part of allergies in Porto Alegre today is the reading on this page: the Porto Alegre ragweed pollen index is 32 (Moderate) of the day’s total. The total itself — the headline reading for Porto Alegre — sits on the full Porto Alegre page, with every type together.

Allergies in Porto Alegre follow the Sao Tome and Principe calendar set out on the full Porto Alegre 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 the ragweed pollen part before heading outdoors, the 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 week ahead for Porto Alegre ragweed pollen: it shows whether this type’s season is 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 Porto Alegre pollen count — all types, the overall index and today’s ranking context

Porto Alegre tree pollen count

Porto Alegre grass pollen count

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

See Porto Alegre on the pollen map

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

Worst cities for allergies

Ragweed season

Find an allergist in Porto Alegre, Sao Tome and Principe

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).