Grass Pollen Count in Saint-Hernin, France

Last updated Sunday, November 8, 2026

This page shows the most recent reading available for Saint-Hernin — from Sunday, November 8, 2026 (1 day ago) — not today's reading.

This reading is the forecast point for Saint-Hernin — 2 nearby places use the same point; Saint-Hernin is 3.1 km from it.

Pollen by type in Saint-Hernin

What is the grass pollen count in Saint-Hernin today?

The Saint-Hernin grass pollen index today is 0.6 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Saint-Hernin’s overall pollen count today is 20 (Low) across all types. See the full Saint-Hernin pollen count for the overall index and every type together.

Saint-Hernin is in Finistère, Brittany, France. Its population is 761 (GeoNames).

Saint-Hernin Grass Pollen Count: 5-Day Forecast

DayOverall indexCategory
Sunday, November 820Low
Monday, November 920Low
Tuesday, November 1011Low
Wednesday, November 1115Low
Thursday, November 1216Low

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 Saint-Hernin’s overall trend across the week. Today’s grass pollen reading is the headline above.

Species driving Saint-Hernin’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 Saint-Hernin is 0.6 (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 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.

Plants affecting Saint-Hernin now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Saint-Hernin. The type summary stands: grass 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 grass pollen level means

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

Enjoy outdoor activities.

Grasses hold from May through July, cresting in late May and June. This month sits outside the usual grass pollen window for the Continental West pattern, so today’s grass pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. No France allergy season guide is published yet, so the seasonal context here follows the Continental West regional pattern.

Saint-Hernin allergies today

Saint-Hernin allergies today are set by the same reading as the Saint-Hernin pollen count today: the Total Pollen Index is 20 (Low), and the grass pollen index on this page is 0.6 (Low) of it. When people ask about Saint-Hernin allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Saint-Hernin.

Allergies in Saint-Hernin follow the France calendar set out on the full Saint-Hernin 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 Saint-Hernin 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 Saint-Hernin allergy forecast for the grass pollen season: it shows whether Saint-Hernin 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 Saint-Hernin pollen count — all types, the overall index and today’s ranking context

Saint-Hernin tree pollen count

Saint-Hernin ragweed pollen count

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

See Saint-Hernin 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 Saint-Hernin, France

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).