Altdorf, Switzerland Pollen Count Today
Altdorf, 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).
Altdorf, Switzerland
Grass Index
How active grass pollen is today (0–100).
Altdorf, Switzerland
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Altdorf Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count Altdorf residents check each morning
The Altdorf pollen count today is 9 (Low). No single plant stands out in today’s readings; the Grass category is the one the index is led by. The full split is tree pollen 0.6, grass pollen 12, weed pollen 0.6. Plant-by-plant detail for Altdorf, 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 grass pollen, reading noticeably higher than the rest, which is why the split is printed on every Altdorf page.
Outside its main late-spring and early-summer window, grass pollen usually appears as a small background value rather than the driver of the total. A low grass reading alongside a higher weed or mold value is a typical off-peak pattern. Grass should be read from its own value on this page, not assumed from the calendar: the index reports today’s modelled value, and the modelled value outranks any general seasonal expectation.
To see whether today’s pollen level holds, check the 5-day Altdorf pollen forecast below — it is currently mixed, with Wednesday the highest day in the window.
This is the pollen count Altdorf residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Altdorf pollen count today?
The Altdorf pollen count today is 9 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Grass.
Short answer for anyone searching pollen count today Altdorf: this page is updated every morning with the day’s modelled reading.
Altdorf allergies today
Altdorf allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 9 (Low), driven mainly by Grass. When people ask about Altdorf allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Altdorf.
Allergies in Altdorf 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 Altdorf 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 Altdorf allergy forecast: today reads 9 (Low), and the day-by-day outlook shows whether Altdorf 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 Altdorf today records is this same combined reading — tree, grass, weed and mold in one index.
The Altdorf allergy count today is 9 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Altdorf: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Saturday, November 7 | 9 | Low |
| Sunday, November 8 | 14 | Low |
| Monday, November 9 | 11 | Low |
| Tuesday, November 10 | 6 | Low |
| Wednesday, November 11 | 15 | Low |
Pollen Atlas forecasts Altdorf’s pollen count to peak on Wednesday at 15 (Low) over the next 5 days.
Pollen by type in Altdorf
What is driving Altdorf’s pollen today
The shape of today’s 9 (Low) is set by grass pollen at 12 (Low on its own scale) — about 91% of the four category readings added together, 11.4 points clear of the next category, tree pollen at 0.6. 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 runs against the usual calendar — the Switzerland grass chapter runs May to July — 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 Altdorf, 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 6 to 15, never changing band. Today’s 9 sits 2 points below the window’s average of 11 — a moving window, worth reading day by day rather than from the average.
Plants affecting Altdorf now
Detailed plant-by-plant readings for Altdorf 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 12 (Low).
Weed pollen is one of the categories with a non-zero reading today, at 0.6 (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.
Altdorf pollen through the year
Chapter by chapter, the Altdorf 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 Altdorf — 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 Altdorf pollen count rankings and Altdorf on the pollen heatmap.
How to read this index
Pollen Atlas reports the Altdorf 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 whatever the month. 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.
Altdorf in today’s national picture
At 9 (Low), Altdorf ranks joint 82111th 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 Altdorf: Bürglen, Switzerland (2 km away) reads 36 (Low); Schattdorf, Switzerland (2 km away) reads 36 (Low); Attinghausen, Switzerland (2 km away) reads 9 (Low). Altdorf reads 27 points lower than 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 Altdorf resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Altdorf, 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.
Altdorf in its local area
Altdorf is in Uri, Switzerland. Its population is 9,401 (GeoNames).
Across Switzerland’s 1093 tracked cities, Altdorf ranks joint 827th today.
Like every Pollen Atlas city page, the Altdorf, Switzerland pollen count is refreshed each morning.
Nearby cities
- Bürglen pollen count (2 km away)
- Schattdorf pollen count (2 km away)
- Attinghausen pollen count (2 km away)
- Flüelen pollen count (3 km away)
- Erstfeld pollen count (7 km away)
- Silenen pollen count (10 km away)
From Pollen Atlas News
See how Altdorf 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).