Porsan, Italy Pollen Count
Porsan, Italy · Last updated Sunday, November 8, 2026
This page shows the most recent reading available for Porsan — from Sunday, November 8, 2026 (1 day 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).
Porsan, Italy
Grass Index
How active grass pollen is today (0–100).
Porsan, Italy
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Porsan Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
This reading is the forecast point shared with Vignil, Italy — 10 nearby places use the same point; Porsan is 5.9 km from it.
Pollen count Porsan residents check each morning
The Porsan pollen count today is 18 (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 18, weed pollen 0.6. Below, the plant detail and the multi-day outlook show whether today is the pattern or the exception. Pollen Atlas updated this count on Sunday, November 8, 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 Porsan 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 Porsan pollen forecast below — it is currently mixed, with Sunday the highest day in the window.
This is the pollen count Porsan residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Porsan pollen count today?
The Porsan pollen count today is 18 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Grass.
Short answer for anyone searching pollen count today Porsan: this page is updated every morning with the day’s modelled reading.
Porsan allergies today
Porsan allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 18 (Low), driven mainly by Grass. When people ask about Porsan allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Porsan.
Allergies in Porsan follow the Italy 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 Porsan 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 Porsan allergy forecast: today reads 18 (Low), and the day-by-day outlook shows whether Porsan 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 Porsan today records is this same combined reading — tree, grass, weed and mold in one index.
The Porsan allergy count today is 18 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Porsan: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Sunday, November 8 | 18 | Low |
| Monday, November 9 | 13 | Low |
| Tuesday, November 10 | 8 | Low |
| Wednesday, November 11 | 17 | Low |
| Thursday, November 12 | 12 | Low |
Pollen Atlas forecasts Porsan’s pollen count to peak on Sunday at 18 (Low) over the next 5 days.
Pollen by type in Porsan
What is driving Porsan’s pollen today
The shape of today’s 18 (Low) is set by grass pollen at 18 (Low on its own scale) — about 94% of the four category readings added together, 17.4 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 Italy grass chapter runs March to June — 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 Porsan, 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 8 to 18, never changing band. Today’s 18 sits 4 points above the window’s average of 13.6 — a moving window, worth reading day by day rather than from the average.
Plants affecting Porsan now
Detailed plant-by-plant readings for Porsan 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 18 (Low).
Weed pollen is one of the categories with a non-zero reading today, at 0.6 (Low).
In the Mediterranean pattern, the plants that typically shape this city’s year are winter cypress and early hazel, spring grasses and olive, and late-summer weeds spread across a long, mild season — 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.
Porsan pollen through the year
Three chapters make the Italy pollen year, and Porsan follows them in the Mediterranean order. The tree chapter: cypress opens the year in winter, hazel and alder follow early, and olive carries the spring peak from April into May. The grass chapter: grasses build from spring and peak from April into June, earlier in the south. The weed chapter: weeds — pellitory through the warm months and ragweed in late summer where it has spread — close a long season that can run into November.
No Italy allergy season guide is published yet, so this page does not single out signature pollens for Porsan — the calendar above is the Mediterranean regional pattern, and the plant detail on this page names what today’s feed actually records.
November in Porsan sits inside the weed chapter of the Italy 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 Italy year, January to November — a long season by national standards, with only a short quiet gap. No Italy allergy season guide is published yet — this calendar follows the Mediterranean regional pattern. See Porsan pollen count rankings and Porsan on the pollen heatmap.
How to read this index
Pollen Atlas reports the Porsan 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.
Porsan in today’s national picture
At 18 (Low), Porsan ranks joint 33055th of the 217874 cities Pollen Atlas tracks today — in the middle of the national table. The highest reading in the country today is Tignes, France at 66, and the lowest is Извор, North Macedonia at 5. The whole table spans 61 points today — a wide-open day, when the top and bottom of the table are effectively in different seasons.
Around Porsan: Avisod, Italy (1 km away) reads 18 (Low); Vignil, Italy (1 km away) reads 18 (Low); Chetoz, Italy (2 km away) reads 13 (Low). Porsan reads exactly level with its nearest tracked neighbour today. Across Italy’s 43618 tracked cities, today runs from 5 in Verona to 58 in Trepalle.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Porsan resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every ragweed season, allergists in Porsan, Italy 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.
Porsan in its local area
Porsan is in Valle d'Aosta, Aosta Valley, Italy. Its population is 14 (GeoNames).
Porsan sits 0.9 km north of Vignil, Italy — the anchor of the forecast-point group this reading belongs to. Within the group of 10, Porsan ranks joint 1st; across Italy’s 43618 tracked cities, it ranks joint 5126th today.
Like every Pollen Atlas city page, the Porsan, Italy pollen count is refreshed each morning.
Nearby cities
- Avisod pollen count (1 km away)
- Vignil pollen count (1 km away)
- Chetoz pollen count (2 km away)
- Ville Sur Nus pollen count (2 km away)
- Seran pollen count (2 km away)
- Chantignan pollen count (2 km away)
From Pollen Atlas News
See how Porsan 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).