Name: Pollen forecast for St Helens (2026-10-17)
Creator: Pollen Count
Published: 2026-10-17T14:18:30Z
License: https://pollencount.org/terms/

🌿

About Pollen in St Helens

St Helens’ seasonal allergy profile sees early spring (March-April) dominated by tree pollens: Hazel and Alder active near Bembridge Harbour; Birch and Oak prevalent across St Helens Green and village gardens. Late spring (May-June) adds Pine pollen. Summer (June-August) brings high Grass pollen from surrounding agricultural fields and coastal grasslands, notably St Helens Duver.

Coastal winds across St Helens Bay can disperse pollen; however, local sheltered areas and the Bembridge Harbour estuary environment may concentrate it. Autumn (September-November) brings elevated mould spore levels from decaying vegetation around the harbour fringes and damp leaf litter within village residential areas.

The pollen count in St Helens today is moderate, driven mainly by Cock's-foot.

MED

13 active species

Refreshing live forecast…

.forecast-refresh-status{display:none!important}.date-tab{cursor:default;opacity:.55}Showing today's cached forecast. Enable JavaScript to switch days and load live data.

4-Day Forecast:

Morning

Grass LOW

Tree LOW

Weed LOW

Afternoon

Grass MED

Tree LOW

Weed MED

Evening

Grass LOW

Tree LOW

Weed LOW

Species	Level	Count
🌾 Cock's-foot	MED	6 grains/m³
🌾 Perennial Ryegrass	MED	6 grains/m³
🌾 Timothy Grass	MED	6 grains/m³
🌾 Grass (mixed)	MED	6 grains/m³
🌿 Mugwort	MED	5 grains/m³
+35 more tracked Western Ragweed Russian Thistle Stinging Nettle Pigweed Sagebrush Fat Hen Ribwort Plantain Common Sorrel Box Elder Alder Common Ragweed Giant Ragweed Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Ash Mountain Cedar White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Field Elm All species in the app: Android iOS
🌿 Mugwort	LOW	4 grains/m³
🌾 Cock's-foot	LOW	4 grains/m³
🌾 Perennial Ryegrass	LOW	4 grains/m³
🌾 Timothy Grass	LOW	4 grains/m³
🌾 Grass (mixed)	LOW	4 grains/m³
+35 more tracked Pigweed Western Ragweed Fat Hen Ribwort Plantain Russian Thistle Stinging Nettle Sagebrush Common Sorrel Box Elder Alder Common Ragweed Giant Ragweed Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Ash Mountain Cedar White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Field Elm All species in the app: Android iOS
🌿 Mugwort	MED	7 grains/m³
🌾 Perennial Ryegrass	MED	6 grains/m³
🌾 Timothy Grass	MED	6 grains/m³
🌾 Grass (mixed)	MED	6 grains/m³
🌾 Cock's-foot	MED	5 grains/m³
+35 more tracked Pigweed Western Ragweed Fat Hen Ribwort Plantain Russian Thistle Stinging Nettle Sagebrush Common Sorrel Box Elder Alder Common Ragweed Giant Ragweed Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Ash Mountain Cedar White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Field Elm All species in the app: Android iOS
🌿 Mugwort	MED	9 grains/m³
🌿 Western Ragweed	MED	5 grains/m³
🌾 Grass (mixed)	MED	5 grains/m³
🌿 Stinging Nettle	MED	5 grains/m³
🌿 Pigweed	LOW	4 grains/m³
+35 more tracked Fat Hen Cock's-foot Perennial Ryegrass Timothy Grass Ribwort Plantain Russian Thistle Sagebrush Common Sorrel Box Elder Alder Common Ragweed Giant Ragweed Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Ash Mountain Cedar White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Field Elm All species in the app: Android iOS

Last updated: 14:18 UTC

4-Day Forecast	Tree	Grass	Weed
Sat 17 Oct	LOW	MED	MED
Sun 18 Oct	LOW	LOW	LOW
Mon 19 Oct	LOW	MED	MED
Tue 20 Oct	LOW	MED	MED

Map of St Helens (50.697144°, -1.111097°)

More in United Kingdom

Portsmouth Southampton Eastleigh Winchester Bournemouth Worthing

What Pollen Levels Mean

LOW Symptoms are unlikely

MED Moderate risk of symptoms

HIGH Widespread symptoms likely

V.HI Expect significant symptoms

X.HI Extremely high symptom likelihood & severity