Tree Pollen Count in Grand-Halleux, Belgium — Today
Updated Monday, November 9, 2026
Pollen by type in Grand-Halleux
What is the tree pollen count in Grand-Halleux today?
The Grand-Halleux tree pollen index today is 0.6 (Low) on Pollen Atlas’s modelled 0–100 scale. Low
Modelled pollen risk index — not a measured count.
Grand-Halleux’s overall pollen count today is 7 (Low) across all types. See the full Grand-Halleux pollen count for the overall index and every type together.
Grand-Halleux is in Province du Luxembourg, Wallonia, Belgium. Its population is 1,329 (GeoNames).
Grand-Halleux Tree Pollen Count: 5-Day Forecast
| Day | Overall index | Category |
|---|---|---|
| Monday, November 9 | 7 | Low |
| Tuesday, November 10 | 5 | Low |
| Wednesday, November 11 | 5 | Low |
| Thursday, November 12 | 7 | Low |
| Friday, November 13 | 7 | Low |
Pollen Atlas models the daily detail as an overall index: day-by-day splits by individual pollen type are not part of the modelled data, so this table shows Grand-Halleux’s overall trend across the week. Today’s tree pollen reading is the headline above.
Species driving Grand-Halleux’s tree pollen
Species-level counts are not part of the modelled data Pollen Atlas publishes — the modelled index is reported per pollen type, not per species — so this section gives the type summary: tree pollen reads 0.6 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.
Plants affecting Grand-Halleux now — tree pollen
Detailed plant-by-plant readings for the tree pollen category were not returned in today’s source data for Grand-Halleux. The type summary stands: tree pollen reads 0.6 (Low) today.
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’s readings.
Plant detail returns here automatically on any day the feed includes it.
What this tree pollen level means
Low risk. Keep windows open; consider allergy meds only if sensitive.
Enjoy outdoor activities.
Hazel and alder open from February, and birch leads the spring peak through April and into May. This month sits outside the usual tree pollen window for the Continental West pattern, so today’s tree pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. No Belgium allergy season guide is published yet, so the seasonal context here follows the Continental West regional pattern.
Grand-Halleux allergies today
Grand-Halleux allergies today are set by the same reading as the Grand-Halleux pollen count today: the Total Pollen Index is 7 (Low), and the tree pollen index on this page is 0.6 (Low) of it. When people ask about Grand-Halleux allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Grand-Halleux.
Allergies in Grand-Halleux follow the Belgium calendar set out on the full Grand-Halleux page — the chapters, the plants behind them, and the 5-day forecast show whether today is typical for the season or an exception to it. If you are checking allergies today in Grand-Halleux before heading outdoors, the tree pollen split on this page is the part to read: it shows whether this pollen type is doing the work today, not just how high the total sits.
Read the five-day overall trend above as the Grand-Halleux allergy forecast for the tree pollen season: it shows whether Grand-Halleux allergies are set to ease or build across the week, day by day — the days to plan outdoor time around are the ones where the overall index steps down, not just today.
See the full Grand-Halleux pollen count — all types, the overall index and today’s ranking context
Grand-Halleux grass pollen count
Grand-Halleux ragweed pollen count
See how Grand-Halleux ranks in today's pollen count rankings — the worst cities for allergies today
See Grand-Halleux on the pollen map
Every pollen type, with photos and seasons: the pollen directory
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).