Perth Pollen Count
Perth, Australia · Last updated Thursday, November 5, 2026
This page shows the most recent reading available for Perth — 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).
Perth, Australia
Weeds Index
How active weeds pollen is today (0–100).
Perth, Australia
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Perth Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count Perth residents check each morning
The Perth pollen count today is 28 (Low). The main driver is Ragweed, with weed pollen at 25 today. Grass pollen is the highest single category in the split at 29 (Low), ahead of weed pollen at 25 and tree pollen at 22. 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 grass pollen, reading noticeably higher than the rest, which is why the split is printed on every Perth 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 Perth pollen forecast below — it is currently holding, with Saturday the highest day in the window.
This is the pollen count Perth residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Perth pollen count today?
The Perth pollen count today is 28 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.
Short answer for anyone searching pollen count today Perth: this page is updated every morning with the day’s modelled reading.
Perth allergies today
Perth allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 28 (Low), driven mainly by Ragweed. When people ask about Perth allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Perth.
Allergies in Perth follow the Australia 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 Perth 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 Perth allergy forecast: today reads 28 (Low), and the day-by-day outlook shows whether Perth 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 Perth today records is this same combined reading — tree, grass, weed and mold in one index.
The Perth allergy count today is 28 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Perth: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Thursday, November 5 | 28 | Low |
| Friday, November 6 | 29 | Low |
| Saturday, November 7 | 30 | Low |
| Sunday, November 8 | 30 | Low |
| Monday, November 9 | 30 | Low |
Pollen Atlas forecasts Perth’s pollen count to peak on Saturday at 30 (Low) over the next 5 days.
Pollen by type in Perth
What is driving Perth’s pollen today
The shape of today’s 28 (Low) is set by grass pollen at 29 (Low on its own scale) — about 38% of the four category readings added together, 4 points clear of the next category, weed pollen at 25. Grass-led totals tend to hold a level for days at a time rather than spike and clear, because grasses pollinate over an extended period. Grass pollen leading in November is a modelled reading, reported as modelled — no regional calendar is asserted for Australia, and the modelled value outranks any general seasonal expectation.
In the plant detail, Grasses (grass) carries the strongest single plant reading, at a Universal Pollen Index of 3 (Moderate), followed by Cypress Pine at 1. No Australia allergy season guide is published yet to cross-reference these names against — they are today’s measured plant detail for Perth, ranked by plant index.
Across the five-day window the Total Pollen Index runs from 28 to 30, never changing band. Today’s 28 sits 1 point below the window’s average of 29.4 — a steady window, in which one day reads much like the next.
Plants affecting Perth now
Two plants are listed in today’s detail for Perth, shown highest plant index first.
- Grasses (grass): Universal Pollen Index 3 (Moderate) — in season
- Cypress Pine (tree): Universal Pollen Index 1 (Very Low) — out of season
Every pollen type, with photos and seasons: the pollen directory.
Perth pollen through the year
The Perth pollen year runs in chapters, set by the Global pattern and the Australia calendar. Trees come first: tree pollen seasons vary with local climate and vegetation, so this page reports the measured readings first and treats any calendar as background only. Grasses take the middle of the year: grass pollen seasons vary with local climate and vegetation, and the measured value outranks any general seasonal expectation. Weeds close it out: weed pollen seasons vary with local climate and vegetation, and no regional calendar is asserted for this area.
No Australia allergy season guide is published yet, so this page does not single out signature pollens for Perth — the calendar above is the Global regional pattern, and the plant detail on this page names what today’s feed actually records.
November in Perth is reported from its modelled readings, not from a regional calendar — no regional calendar is asserted for Australia, so the calendar alone explains little today, and the modelled split above carries the story. No Australia allergy season guide is published yet — this calendar follows the Global regional pattern. See Perth pollen count rankings and Perth on the pollen heatmap.
How to read this index
Pollen Atlas reports the Perth 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 Perth, Australia 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.
Perth in today’s national picture
At 28 (Low), Perth ranks joint 23510th 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 Perth: Adelaide, Australia (2131 km away) reads 29 (Low); Kupang, Indonesia (2550 km away) reads 34 (Low); Denpasar, Indonesia (2592 km away) reads 32 (Low). Perth reads 1 point lower than its nearest tracked neighbour today. Across Australia’s 15 tracked cities, today runs from 16 in Hobart to 36 in Sydney.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Perth resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Perth, Australia 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.
Perth in its local area
Perth is in Perth, Western Australia, Australia. Its population is 2,384,371 (GeoNames).
Across Australia’s 15 tracked cities, Perth ranks 9th today.
Like every Pollen Atlas city page, the Perth, Australia pollen count is refreshed each morning.
Nearby cities
- Adelaide pollen count (2131 km away)
- Geelong pollen count (2672 km away)
- Melbourne pollen count (2721 km away)
- Hobart pollen count (3010 km away)
- Canberra pollen count (3088 km away)
- Wollongong pollen count (3255 km away)
From Pollen Atlas News
See how Perth ranks in today's pollen count rankings — the worst cities for allergies today
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).