Grass Pollen Count in Hamilton, United Kingdom — Today

Updated Saturday, November 7, 2026

Pollen by type in Hamilton

What is the grass pollen count in Hamilton today?

The Hamilton grass pollen index today is 17 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Hamilton’s overall pollen count today is 23 (Low) across all types. See the full Hamilton pollen count for the overall index and every type together.

Hamilton Grass Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 723Low
Sunday, November 820Low
Monday, November 922Low
Tuesday, November 1020Low
Wednesday, November 1122Low

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 Hamilton’s overall trend across the week. Today’s grass pollen reading is the headline above.

Species driving Hamilton’s grass pollen

The modelled data reports grass as one combined index — there is no species-by-species split for grass anywhere in the data, so this page does not invent one. Today’s modelled grass index for Hamilton is 17 (Low), and the 5-day overall trend above shows the shape of the week.

As regional context only — not as today’s readings — 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.

Plants affecting Hamilton now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Hamilton. The type summary stands: grass pollen reads 17 (Low) today.

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’s readings.

Plant detail returns here automatically on any day the feed includes it.

What this grass pollen level means

Low risk. Keep windows open; consider allergy meds only if sensitive.

Enjoy outdoor activities.

Grasses hold from late May into July, peaking in late spring and early summer. This month sits outside the usual grass pollen window for the Atlantic West pattern, so today’s grass pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. No United Kingdom allergy season guide is published yet, so the seasonal context here follows the Atlantic West regional pattern.

Hamilton allergies today

Hamilton allergies today are set by the same reading as the Hamilton pollen count today: the Total Pollen Index is 23 (Low), and the grass pollen index on this page is 17 (Low) of it. When people ask about Hamilton allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Hamilton.

Allergies in Hamilton follow the United Kingdom calendar set out on the full Hamilton 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 Hamilton before heading outdoors, the grass 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 Hamilton allergy forecast for the grass pollen season: it shows whether Hamilton 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 Hamilton pollen count — all types, the overall index and today’s ranking context

Hamilton tree pollen count

Hamilton ragweed pollen count

See how Hamilton ranks in today's pollen count rankings — the worst cities for allergies today

See Hamilton on the pollen map

Every pollen type, with photos and seasons: the pollen directory

Worst cities for allergies

Grass pollen season

Find an allergist in Hamilton, United Kingdom

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).