Name: Pollen forecast for Barnsley (2026-09-01)
Creator: Pollen Count
Published: 2026-09-01T15:30:23Z
License: https://pollencount.org/terms/

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About Pollen in Barnsley

Barnsley’s spring allergen profile peaks March-April with Alder and Hazel; April-May, Birch and Oak pollen from extensive woodlands at Locke Park and Wentworth Castle Gardens dominates, circulating throughout the urban area. Summer (May-July) transitions to significant grass pollen from the River Dearne floodplains and surrounding agricultural meadows.

The town’s valley topography, influenced by the Pennine foothills, can trap and concentrate airborne pollen loads. Autumn sees increased mould spores, particularly from damp conditions in local parks and near Worsbrough Reservoir, associated with decomposing organic matter.

The pollen count in Barnsley today is HIGH, driven mainly by Mugwort.

HIGH

15 active species

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4-Day Forecast:

Morning

Grass MED

Tree LOW

Weed MED

Afternoon

Grass MED

Tree LOW

Weed HIGH

Evening

Grass LOW

Tree LOW

Weed MED

Species	Level	Count
🌿 Mugwort	HIGH	18 grains/m³
🌿 Common Ragweed	MED	12 grains/m³
🌿 Giant Ragweed	MED	12 grains/m³
🌾 Grass (mixed)	MED	12 grains/m³
🌾 Timothy Grass	MED	10 grains/m³
+35 more tracked Cock's-foot Perennial Ryegrass Sagebrush Russian Thistle Stinging Nettle Fat Hen Pigweed Ribwort Plantain Common Sorrel Western Ragweed Box Elder Alder 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	10 grains/m³
🌿 Common Ragweed	MED	7 grains/m³
🌿 Giant Ragweed	MED	6 grains/m³
🌿 Sagebrush	LOW	4 grains/m³
🌿 Russian Thistle	LOW	4 grains/m³
+35 more tracked Stinging Nettle Pigweed Fat Hen Cock's-foot Perennial Ryegrass Timothy Grass Ribwort Plantain Grass (mixed) Common Sorrel Western Ragweed Box Elder Alder 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	HIGH	17 grains/m³
🌿 Common Ragweed	MED	11 grains/m³
🌿 Giant Ragweed	MED	11 grains/m³
🌾 Grass (mixed)	MED	11 grains/m³
🌾 Timothy Grass	MED	9 grains/m³
+35 more tracked Cock's-foot Perennial Ryegrass Russian Thistle Stinging Nettle Sagebrush Fat Hen Pigweed Ribwort Plantain Common Sorrel Western Ragweed Box Elder Alder 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	13 grains/m³
🌾 Grass (mixed)	MED	11 grains/m³
🌿 Common Ragweed	MED	9 grains/m³
🌾 Timothy Grass	MED	9 grains/m³
🌿 Giant Ragweed	MED	8 grains/m³
+35 more tracked Cock's-foot Perennial Ryegrass Sagebrush Russian Thistle Stinging Nettle Pigweed Fat Hen Ribwort Plantain Western Ragweed Common Sorrel Box Elder Alder 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: 15:30 UTC

4-Day Forecast	Tree	Grass	Weed
Tue 1 Sep	LOW	MED	HIGH
Wed 2 Sep	LOW	LOW	MED
Thu 3 Sep	LOW	MED	HIGH
Fri 4 Sep	LOW	MED	MED

Map of Barnsley (53.550665°, -1.478569°)

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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