Caerwys, United Kingdom Pollen Count
Caerwys, United Kingdom · Last updated Sunday, November 8, 2026
This page shows the most recent reading available for Caerwys — 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).
Caerwys, United Kingdom
Weeds Index
How active weeds pollen is today (0–100).
Caerwys, United Kingdom
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Caerwys Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
This reading is the forecast point for Caerwys — 2 nearby places use the same point; Caerwys is 4.1 km from it.
Pollen count Caerwys residents check each morning
The Caerwys pollen count today is 11 (Low). The main driver is Ragweed, with weed pollen at 9 today. Tree pollen is the highest single category in the split at 11 (Low), ahead of weed pollen at 9 and grass pollen at 0.6. Plant-by-plant detail for Caerwys, United Kingdom follows, along with the outlook for the days ahead. 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 tree pollen, reading noticeably higher than the rest, which is why the split is printed on every Caerwys 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 Caerwys pollen forecast below — it is currently mixed, with Monday the highest day in the window.
This is the pollen count Caerwys residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Caerwys pollen count today?
The Caerwys pollen count today is 11 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.
Short answer for anyone searching pollen count today Caerwys: this page is updated every morning with the day’s modelled reading.
Caerwys allergies today
Caerwys allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 11 (Low), driven mainly by Ragweed. When people ask about Caerwys allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Caerwys.
Allergies in Caerwys follow the United Kingdom 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 Caerwys 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 Caerwys allergy forecast: today reads 11 (Low), and the day-by-day outlook shows whether Caerwys 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 Caerwys today records is this same combined reading — tree, grass, weed and mold in one index.
The Caerwys allergy count today is 11 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Caerwys: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Sunday, November 8 | 11 | Low |
| Monday, November 9 | 12 | Low |
| Tuesday, November 10 | 7 | Low |
| Wednesday, November 11 | 10 | Low |
| Thursday, November 12 | 10 | Low |
Pollen Atlas forecasts Caerwys’s pollen count to peak on Monday at 12 (Low) over the next 5 days.
Pollen by type in Caerwys
What is driving Caerwys’s pollen today
The shape of today’s 11 (Low) is set by tree pollen at 11 (Low on its own scale) — about 53% of the four category readings added together, 2 points clear of the next category, weed pollen at 9. Tree readings are the fastest-moving of the four in their season, because species pollinate in sequence — a tree-led total can change character within a week. Tree pollen leading in November runs against the usual calendar — the United Kingdom tree chapter runs February to May — 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 Caerwys, 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 7 to 12, never changing band. Today’s 11 sits 1 point above the window’s average of 10 — a steady window, in which one day reads much like the next.
Plants affecting Caerwys now
Detailed plant-by-plant readings for Caerwys 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 11 (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 9 (Low).
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.
Caerwys pollen through the year
Chapter by chapter, the Caerwys 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 United Kingdom allergy season guide is published yet, so this page does not single out signature pollens for Caerwys — 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 United Kingdom 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 United Kingdom year, February to October — leaving a quiet gap of roughly 3 months in the depth of the off-season. No United Kingdom allergy season guide is published yet — this calendar follows the Atlantic West regional pattern. See Caerwys pollen count rankings and Caerwys on the pollen heatmap.
How to read this index
Pollen Atlas reports the Caerwys 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 Caerwys, United Kingdom 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.
Caerwys in today’s national picture
At 11 (Low), Caerwys ranks joint 79158th 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 Caerwys: Greenfield, United Kingdom (7 km away) reads 11 (Low); Mostyn, United Kingdom (8 km away) reads 11 (Low); Trefnant, United Kingdom (8 km away) reads 10 (Low). Caerwys reads exactly level with its nearest tracked neighbour today. Across United Kingdom’s 5973 tracked cities, today runs from 5 in Halifax to 40 in Kingussie.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Caerwys resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Caerwys, United Kingdom 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.
Caerwys in its local area
Caerwys is in County of Flintshire, Wales, United Kingdom. Its population is 950 (GeoNames).
Caerwys anchors the forecast-point group of 2 places that share this reading. Within the group, Caerwys ranks joint 1st; across United Kingdom’s 5973 tracked cities, it ranks joint 3308th today.
Like every Pollen Atlas city page, the Caerwys, United Kingdom pollen count is refreshed each morning.
Nearby cities
- Greenfield pollen count (7 km away)
- Mostyn pollen count (8 km away)
- Trefnant pollen count (8 km away)
- Llandyrnog pollen count (8 km away)
- Dyserth pollen count (9 km away)
- Saint Asaph pollen count (9 km away)
From Pollen Atlas News
See how Caerwys 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).