Welsum, Netherlands Pollen Count
Welsum, Netherlands · Last updated Sunday, November 8, 2026
This page shows the most recent reading available for Welsum — 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).
Welsum, Netherlands
Weeds Index
How active weeds pollen is today (0–100).
Welsum, Netherlands
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Welsum Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
This reading is the forecast point for Welsum — 3 nearby places use the same point; Welsum is 1.3 km from it.
Pollen count Welsum residents check each morning
The Welsum pollen count today is 51 (Moderate). The main driver is Ragweed, with weed pollen at 51 today. That total sits on a narrow base: weed pollen is 51 while tree pollen is just 0.6 and grass pollen 0.6. Plant-by-plant detail for Welsum, Netherlands follows, along with the outlook for the days ahead. Pollen Atlas updated this count on Sunday, November 8, 2026.
A Moderate band means the Total Pollen Index sits in the middle of the 0–100 scale — neither a quiet day nor a peak day. On moderate days the split usually explains the total: one or two categories do most of the work while the others stay low. The Welsum split above shows exactly which categories those are today, and the forecast below shows whether the moderate reading is a plateau or a step toward a higher band.
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 Welsum pollen forecast below — it is currently mixed, with Tuesday the highest day in the window.
This is the pollen count Welsum residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Welsum pollen count today?
The Welsum pollen count today is 51 out of 100 (Moderate) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.
Short answer for anyone searching pollen count today Welsum: this page is updated every morning with the day’s modelled reading.
Welsum allergies today
Welsum allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 51 (Moderate), driven mainly by Ragweed. When people ask about Welsum allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Welsum.
Allergies in Welsum follow the Netherlands 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 Welsum 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 Welsum allergy forecast: today reads 51 (Moderate), and the day-by-day outlook shows whether Welsum 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 Welsum today records is this same combined reading — tree, grass, weed and mold in one index.
The Welsum allergy count today is 51 (Moderate) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Welsum: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Sunday, November 8 | 51 | Moderate |
| Monday, November 9 | 50 | Moderate |
| Tuesday, November 10 | 53 | Moderate |
| Wednesday, November 11 | 53 | Moderate |
| Thursday, November 12 | 52 | Moderate |
Pollen Atlas forecasts Welsum’s pollen count to peak on Tuesday at 53 (Moderate) over the next 5 days.
Pollen by type in Welsum
What is driving Welsum’s pollen today
The shape of today’s 51 (Moderate) is set by weed pollen at 51 (Moderate on its own scale) — about 98% of the four category readings added together, 50.4 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 Netherlands 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 Welsum, 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 50 to 53, never changing band. Today’s 51 sits 1 point below the window’s average of 51.8 — a steady window, in which one day reads much like the next.
Plants affecting Welsum now
Detailed plant-by-plant readings for Welsum 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 51 (Moderate).
In the Atlantic West pattern, the plants that typically shape this city’s year are early hazel and alder, a spring birch and oak wave, late-spring and summer grasses, and a modest late-summer weed finish — 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.
Welsum pollen through the year
Chapter by chapter, the Welsum pollen year runs like this:
- Hazel and alder can open as early as February in mild winters, and the main tree wave — birch, then oak — builds through spring to a May peak.
- Grasses hold from late May into July, peaking in late spring and early summer.
- Weeds are the minor closing act — mugwort through late summer, with ragweed localised and generally light this far west.
- Mold tracks the region’s Atlantic humidity rather than a flowering calendar, and it fills the gaps between chapters.
No Netherlands allergy season guide is published yet, so this page does not single out signature pollens for Welsum — the calendar above is the Atlantic 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 Netherlands 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 Netherlands year, February to October — leaving a quiet gap of roughly 3 months in the depth of the off-season. No Netherlands allergy season guide is published yet — this calendar follows the Atlantic West regional pattern. See Welsum pollen count rankings and Welsum on the pollen heatmap.
How to read this index
Pollen Atlas reports the Welsum 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 Welsum, Netherlands 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.
Welsum in today’s national picture
At 51 (Moderate), Welsum ranks joint 14406th 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 Aroniáda, Greece 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 Welsum: Olst, Netherlands (1 km away) reads 51 (Moderate); Boskamp, Netherlands (3 km away) reads 51 (Moderate); Oene, Netherlands (3 km away) reads 47 (Moderate). Welsum reads exactly level with its nearest tracked neighbour today. Across Netherlands’s 2768 tracked cities, today runs from 19 in Westkapelle to 60 in Tholen.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Welsum resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Welsum, Netherlands 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.
Welsum in its local area
Welsum is in Gemeente Olst-Wijhe, Overijssel, The Netherlands. Its population is 575 (GeoNames).
Welsum anchors the forecast-point group of 3 places that share this reading. Within the group, Welsum ranks joint 1st; across Netherlands’s 2768 tracked cities, it ranks joint 762nd today.
Like every Pollen Atlas city page, the Welsum, Netherlands pollen count is refreshed each morning.
Nearby cities
- Olst pollen count (1 km away)
- Boskamp pollen count (3 km away)
- Oene pollen count (3 km away)
- Veessen pollen count (5 km away)
- Nijbroek pollen count (5 km away)
- Eikelhof pollen count (5 km away)
From Pollen Atlas News
See how Welsum 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).