Arzo, Switzerland Pollen Count Today
Arzo, Switzerland · Updated Saturday, November 7, 2026
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).
Arzo, Switzerland
Weeds Index
How active weeds pollen is today (0–100).
Arzo, Switzerland
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Arzo Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
This reading is the forecast point shared with Saltrio, Italy — 2 nearby places use the same point; Arzo is 1 km from it.
Pollen count Arzo residents check each morning
The Arzo pollen count today is 18 (Low). The main driver is Ragweed, with weed pollen at 24 today. That total sits on a narrow base: weed pollen is 24 while tree pollen is just 0.6 and grass pollen 0.6. Plant-by-plant detail for Arzo, Switzerland follows, along with the outlook for the days ahead. Pollen Atlas updated this count on Saturday, November 7, 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 Arzo 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 Arzo pollen forecast below — it is currently holding, with Monday the highest day in the window.
This is the pollen count Arzo residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Arzo pollen count today?
The Arzo pollen count today is 18 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.
Short answer for anyone searching pollen count today Arzo: this page is updated every morning with the day’s modelled reading.
Arzo allergies today
Arzo allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 18 (Low), driven mainly by Ragweed. When people ask about Arzo allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Arzo.
Allergies in Arzo follow the Switzerland 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 Arzo 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 Arzo allergy forecast: today reads 18 (Low), and the day-by-day outlook shows whether Arzo 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 Arzo today records is this same combined reading — tree, grass, weed and mold in one index.
The Arzo allergy count today is 18 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Arzo: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Saturday, November 7 | 18 | Low |
| Sunday, November 8 | 18 | Low |
| Monday, November 9 | 28 | Low |
| Tuesday, November 10 | 28 | Low |
| Wednesday, November 11 | 28 | Low |
Pollen Atlas forecasts Arzo’s pollen count to peak on Monday at 28 (Low) over the next 5 days.
Pollen by type in Arzo
What is driving Arzo’s pollen today
The shape of today’s 18 (Low) is set by weed pollen at 24 (Low on its own scale) — about 95% of the four category readings added together, 23.4 points clear of the next category, tree pollen at 0.6. 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 runs against the usual calendar — the Switzerland weed chapter runs August to October — so today’s lead is the model outranking the pattern, and this page reports the modelled reading first.
Plant-level detail is not in today’s feed for Arzo, 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 18 to 28, never changing band. Today’s 18 sits 6 points below the window’s average of 24 — a moving window, worth reading day by day rather than from the average.
Plants affecting Arzo now
Detailed plant-by-plant readings for Arzo 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 0.6 (Low).
Grass pollen is one of the categories with a non-zero reading today, at 0.6 (Low).
Weed pollen is one of the categories with a non-zero reading today, at 24 (Low).
In the Continental West pattern, the plants that typically shape this city’s year are early hazel and alder, a birch-led spring, late-spring grasses, and late-summer mugwort and 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.
Arzo pollen through the year
Chapter by chapter, the Arzo pollen year runs like this:
- Hazel and alder open from February, and birch leads the spring peak through April and into May.
- Grasses hold from May through July, cresting in late May and June.
- Mugwort and ragweed build from August, peak in September, and are ended by the first hard frost.
- Mold builds through the humid summer and fills the gaps between chapters.
No Switzerland allergy season guide is published yet, so this page does not single out signature pollens for Arzo — the calendar above is the Continental West regional pattern, and the plant detail on this page names what today’s feed actually records.
November falls between the main chapters of the Switzerland pollen year — the tail of one and the approach of the next — so the calendar alone explains little today, and the modelled split above carries the story. Between them, the three chapters cover 9 months of the Switzerland year, February to October — leaving a quiet gap of roughly 3 months in the depth of the off-season. No Switzerland allergy season guide is published yet — this calendar follows the Continental West regional pattern. See Arzo pollen count rankings and Arzo on the pollen heatmap.
How to read this index
Pollen Atlas reports the Arzo 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 Arzo, Switzerland 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.
Arzo in today’s national picture
At 18 (Low), Arzo ranks joint 57574th of the 90896 cities Pollen Atlas tracks today — in the middle of the national table. The highest reading in the country today is Beja, Portugal at 52, and the lowest is Los Ángeles de San Rafael, Spain at 5. The whole table spans 47 points today — a wide-open day, when the top and bottom of the table are effectively in different seasons.
Around Arzo: Saltrio, Italy (1 km away) reads 18 (Low); Clivio, Italy (2 km away) reads 18 (Low); Ligornetto, Switzerland (2 km away) reads 20 (Low). Arzo reads exactly level with its nearest tracked neighbour today. Across Switzerland’s 1093 tracked cities, today runs from 5 in Winterthur to 46 in Andermatt.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Arzo resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Arzo, Switzerland 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.
Arzo in its local area
Arzo is in Mendrisio District, Ticino, Switzerland. Its population is 1,188 (GeoNames).
Arzo sits 1.3 km east-northeast of Saltrio, Italy — the anchor of the forecast-point group this reading belongs to. Within the group of 2, Arzo ranks joint 1st; across Switzerland’s 1093 tracked cities, it ranks joint 381st today.
Like every Pollen Atlas city page, the Arzo, Switzerland pollen count is refreshed each morning.
Nearby cities
- Ligornetto pollen count (2 km away)
- Stabio pollen count (3 km away)
- Mendrisio pollen count (3 km away)
- Riva San Vitale pollen count (4 km away)
- Novazzano pollen count (5 km away)
- Castel San Pietro pollen count (5 km away)
From Pollen Atlas News
See how Arzo 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).