Halden, Norway Pollen Count Today
Halden, Norway · 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).
Halden, Norway
Weeds Index
How active weeds pollen is today (0–100).
Halden, Norway
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Halden Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count Halden residents check each morning
The Halden pollen count today is 33 (Low). The main driver is Ragweed, with weed pollen at 41 today. That total sits on a narrow base: weed pollen is 41 while tree pollen is just 0.6 and grass pollen 13. Plant-by-plant detail for Halden, Norway 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 Halden 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 Halden pollen forecast below — it is currently mixed, with Monday the highest day in the window.
This is the pollen count Halden residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Halden pollen count today?
The Halden pollen count today is 33 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.
Short answer for anyone searching pollen count today Halden: this page is updated every morning with the day’s modelled reading.
Halden allergies today
Halden allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 33 (Low), driven mainly by Ragweed. When people ask about Halden allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Halden.
Allergies in Halden follow the Norway 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 Halden 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 Halden allergy forecast: today reads 33 (Low), and the day-by-day outlook shows whether Halden 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 Halden today records is this same combined reading — tree, grass, weed and mold in one index.
The Halden allergy count today is 33 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Halden: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Saturday, November 7 | 33 | Low |
| Sunday, November 8 | 32 | Low |
| Monday, November 9 | 35 | Moderate |
| Tuesday, November 10 | 25 | Low |
| Wednesday, November 11 | 31 | Low |
Pollen Atlas forecasts Halden’s pollen count to peak on Monday at 35 (Moderate) over the next 5 days.
Pollen by type in Halden
What is driving Halden’s pollen today
The shape of today’s 33 (Low) is set by weed pollen at 41 (Moderate on its own scale) — about 75% of the four category readings added together, 28 points clear of the next category, grass pollen at 13. 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 Norway weed chapter runs August to September — 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 Halden, 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 25 to 35, changing band 2 times. Today’s 33 sits 2 points above the window’s average of 31.2 — a moving window, worth reading day by day rather than from the average.
Plants affecting Halden now
Detailed plant-by-plant readings for Halden 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 13 (Low).
Weed pollen is one of the categories with a non-zero reading today, at 41 (Moderate).
In the Nordic & Baltic North pattern, the plants that typically shape this city’s year are a compressed birch-led spring, a brief early-summer grass peak, and a short late-summer mugwort 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.
Halden pollen through the year
Chapter by chapter, the Halden pollen year runs like this:
- The season is compressed: alder stirs first, and birch — the region’s signature spring pollen — peaks through May into early June.
- Grasses own a brief early-summer peak, cresting around the first hay cutting in June and July.
- Mugwort runs through August, and ragweed is scarce at these latitudes — the late window is short and light.
- Mold rises late in the short season, from decaying vegetation as the brief summer closes.
No Norway allergy season guide is published yet, so this page does not single out signature pollens for Halden — the calendar above is the Nordic & Baltic North regional pattern, and the plant detail on this page names what today’s feed actually records.
November falls between the main chapters of the Norway 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 6 months of the Norway year, April to September — a compressed season, which is why its chapters arrive in quick succession. No Norway allergy season guide is published yet — this calendar follows the Nordic & Baltic North regional pattern. See Halden pollen count rankings and Halden on the pollen heatmap.
How to read this index
Pollen Atlas reports the Halden 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 Halden, Norway 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.
Halden in today’s national picture
At 33 (Low), Halden ranks joint 9423rd 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 Halden: Skjeberg, Norway (15 km away) reads 38 (Low); Sarpsborg, Norway (24 km away) reads 34 (Low); Strömstad, Sweden (24 km away) reads 27 (Low). Halden reads 5 points lower than its nearest tracked neighbour today. Across Norway’s 342 tracked cities, today runs from 8 in Odda to 45 in Rygge.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Halden resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Halden, Norway 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.
Halden in its local area
Halden is in Halden, Østfold, Norway. Its population is 21,970 (GeoNames).
Across Norway’s 342 tracked cities, Halden ranks joint 43rd today.
Like every Pollen Atlas city page, the Halden, Norway pollen count is refreshed each morning.
Nearby cities
- Skjeberg pollen count (15 km away)
- Sarpsborg pollen count (24 km away)
- Fredrikstad pollen count (28 km away)
- Rakkestad pollen count (33 km away)
- Karlshus pollen count (39 km away)
- Lervik pollen count (40 km away)
From Pollen Atlas News
See how Halden 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).