Guaynabo, PR Pollen Count
Guaynabo, PR · Last updated Thursday, November 5, 2026
This page shows the most recent reading available for Guaynabo — from Thursday, November 5, 2026 (2 days ago) — not today's reading.
Pollen Overview
Today's overall pollen level and the dominant type (trees, weeds, grass, or mold).
Total Pollen Index
The combined pollen level across all types (0–100).
Guaynabo, PR
Weeds Index
How active weeds pollen is today (0–100).
Guaynabo, PR
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Guaynabo Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count Guaynabo residents check each morning
The Guaynabo pollen count today is 10 (Low). The main driver is Ragweed, with weed pollen at 11 today. The full split is tree pollen 9, grass pollen 8, weed pollen 11. The sections below break that headline number down by plant, by day and by what the band means in practice. Pollen Atlas updated this count on Thursday, November 5, 2026.
A Low band on the Pollen Atlas index means the Total Pollen Index has stayed in the lower part of the 0–100 scale. Readings in this band are built from low individual category values rather than from one large spike, and the category split above matters more than the headline number: a low total can still contain one category, such as weed pollen or mold, reading noticeably higher than the rest, which is why the split is printed on every Guaynabo page.
Fall is ragweed season across most of the United States: ragweed plants release pollen from late summer into autumn, and weed pollen is typically the last major outdoor pollen category to fade as the weather cools. That pattern is why an autumn total is so often weed-led even when the headline number is low — tree and grass pollen have usually receded by then, leaving weed pollen, and on damp days mold, to make up most of what the index records.
To see whether today’s pollen level holds, check the 5-day Guaynabo pollen forecast below — it is currently holding, with Thursday the highest day in the window.
This is the pollen count Guaynabo residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Guaynabo pollen count today?
The Guaynabo pollen count today is 10 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.
Short answer for anyone searching pollen count today Guaynabo: this page is updated every morning with the day’s modelled reading.
Guaynabo allergies today
Guaynabo allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 10 (Low), driven mainly by Ragweed. When people ask about Guaynabo allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Guaynabo.
Allergies in Guaynabo follow the PR calendar set out below — the chapters, the plants behind them, and the 5-day forecast on this page show whether today is typical for the season or an exception to it. If you are checking allergies today in Guaynabo before heading outdoors, the split at the top of this page is the part to read: it shows which pollen is doing the work today, not just how high the total sits.
Read the five-day table on this page as the Guaynabo allergy forecast: today reads 10 (Low), and the day-by-day outlook shows whether Guaynabo allergies are set to ease or build across the week — the days to plan outdoor time around are the ones where the index steps down, not just today.
In practice, the allergy count Guaynabo today records is this same combined reading — tree, grass, weed and mold in one index.
The Guaynabo allergy count today is 10 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Guaynabo: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Thursday, November 5 | 10 | Low |
| Friday, November 6 | 10 | Low |
| Saturday, November 7 | 10 | Low |
| Sunday, November 8 | 10 | Low |
| Monday, November 9 | 10 | Low |
Pollen Atlas forecasts Guaynabo’s pollen count to peak on Thursday at 10 (Low) over the next 5 days.
Pollen by type in Guaynabo
What is driving Guaynabo’s pollen today
The shape of today’s 10 (Low) is set by weed pollen at 11 (Low on its own scale) — about 39% of the four category readings added together, 2 points clear of the next category, tree pollen at 9. A weed-led total is the classic late-year shape: tree and grass pollen have usually receded, leaving weed pollen — and on damp days mold — to make up most of what the index records. Weed pollen leading in November is the PR calendar working as expected — November falls in the closing weeks of the state’s weed chapter.
Plant-level detail is not in today’s feed for Guaynabo, so the drivers have to be read from the category split above — it shows how much of today’s total each category is actually carrying, and plant detail returns here automatically on any day the feed includes it.
Across the five-day window the Total Pollen Index runs from 10 to 10, never changing band. Today’s 10 sits level with the window’s average of 10 — a steady window, in which one day reads much like the next.
Plants affecting Guaynabo now
Detailed plant-by-plant readings for Guaynabo were not returned in today\u2019s source data, so this section summarises the pollen types the index above is built from instead of listing individual plants.
Tree pollen is one of the categories with a non-zero reading today, at 9 (Low).
Grass pollen is one of the categories with a non-zero reading today, at 8 (Low).
Weed pollen is one of the categories with a non-zero reading today, at 11 (Low).
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\u2019s measurements.
Plant detail returns here automatically on any day the source data includes it.
Every pollen type, with photos and seasons: the pollen directory.
Guaynabo pollen through the year
The Guaynabo pollen year runs in chapters, set by the Southeast pattern and the PR calendar. Trees come first: trees can start as early as February and peak in April. Grasses take the middle of the year: grasses follow in May and run through the summer. Weeds close it out: ragweed runs from mid-August to the first frost. Mold is the quiet fourth player, sustained by river-valley humidity between the pollen waves.
No PR allergy season guide is published yet, so this page does not single out signature pollens for Guaynabo — the calendar above is the Southeast regional pattern, and the plant detail on this page names what today’s feed actually records.
November in Guaynabo sits inside the weed chapter of the PR year, in its closing weeks — the part of the calendar today’s readings should be judged against. Between them, the three chapters cover 10 months of the PR year, February to November — a long season by national standards, with only a short quiet gap. No PR allergy season guide is published yet — this calendar follows the Southeast regional pattern. See Guaynabo pollen count rankings and Guaynabo on the pollen heatmap.
How to read this index
Pollen Atlas reports the Guaynabo pollen count on a Total Pollen Index from 0 to 100, built from separate tree, grass and weed readings. The total is a summary, not an average of the three: a single strong category can lift it, and three quiet categories can hold it down even in a month when Guaynabo, PR pollen is usually more active. Index values are a modelled pollen risk index computed by Pollen Atlas from open weather, vegetation and phenology data, calibrated against CDC/NAB season data, with plant detail by the Google Pollen API. The index is a modelled 0–100 scale, not a measured count, and figures update through the day, so a morning and an evening visit to this page can legitimately show different numbers.
Guaynabo in today’s national picture
At 10 (Low), Guaynabo ranks joint 78620th of the 90896 cities Pollen Atlas tracks today — in the middle of the national table. The highest reading in the country today is Serpa, Portugal at 53, and the lowest is Galiakberovo, Russia at 5. The whole table spans 48 points today — a wide-open day, when the top and bottom of the table are effectively in different seasons.
Around Guaynabo: Bayamón, PR (3 miles away) reads 10 (Low); San Juan, PR (4 miles away) reads 10 (Low); Cataño, PR (4 miles away) reads 10 (Low). Guaynabo reads exactly level with its nearest tracked neighbour today. Across PR’s 280 tracked cities, today runs from 9 in Fajardo to 21 in Santa Isabel zona urbana.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Guaynabo resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every ragweed season, allergists in Guaynabo, PR can test whether tree, grass, weed or mold is the category that matters for you — the four readings at the top of this page are the starting point for that conversation.
Guaynabo in its local area
Guaynabo is in Guaynabo Municipio, Puerto Rico. Its population is 70,087 (ACS 2023).
Across PR’s 280 tracked cities, Guaynabo ranks joint 175th today.
Like every Pollen Atlas city page, the Guaynabo, PR pollen count is refreshed each morning.
Nearby cities
- Bayamón pollen count (3 miles away)
- San Juan pollen count (4 miles away)
- Cataño pollen count (4 miles away)
- Sabana Seca comunidad pollen count (5 miles away)
- Caño Martin Peña pollen count (5 miles away)
- Mansión del Mar pollen count (6 miles away)
From Pollen Atlas News
See how Guaynabo ranks in today's pollen count rankings — the worst cities for allergies today
See Guaynabo on the US pollen map
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).