Grass Pollen Count in Mayagüez, PR

Last updated Thursday, November 5, 2026

This page shows the most recent reading available for Mayagüez — from Thursday, November 5, 2026 (2 days ago) — not today's reading.

Pollen by type in Mayagüez

What is the grass pollen count in Mayagüez today?

The Mayagüez grass pollen index today is 11 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Mayagüez’s overall pollen count today is 14 (Low) across all types. See the full Mayagüez pollen count for the overall index and every type together.

Mayagüez is in Mayagüez Municipio, Puerto Rico. Its population is 59,427 (ACS 2023).

Mayagüez Grass Pollen Count: 5-Day Forecast

DayOverall indexCategory
Thursday, November 514Low
Friday, November 614Low
Saturday, November 719Low
Sunday, November 819Low
Monday, November 913Low

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

Species driving Mayagüez’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 Mayagüez is 11 (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 Southeast pattern, the plants that typically shape this city’s year are spring trees, warm-season grasses and late-summer ragweed.

Plants affecting Mayagüez now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Mayagüez. The type summary stands: grass pollen reads 11 (Low) today.

In the Southeast pattern, the plants that typically shape this city’s year are spring trees, warm-season grasses and late-summer 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 follow in May and run through the summer. This month sits outside the usual grass pollen window for the Southeast pattern, so today’s grass pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. No PR allergy season guide is published yet, so the seasonal context here follows the Southeast regional pattern.

Mayagüez allergies today

Mayagüez allergies today are set by the same reading as the Mayagüez pollen count today: the Total Pollen Index is 14 (Low), and the grass pollen index on this page is 11 (Low) of it. When people ask about Mayagüez allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Mayagüez.

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

Mayagüez tree pollen count

Mayagüez ragweed pollen count

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

See Mayagüez 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 Mayagüez, PR

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).