Name: Pollen forecast for Sheffield (2026-09-01)
Creator: Pollen Count
Published: 2026-09-01T15:30:41Z
License: https://pollencount.org/terms/

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About Pollen in Sheffield

Sheffield’s allergy season commences early spring (February-April) with tree pollen: dominant Birch and Oak, largely sourced from the city’s extensive urban parks like Endcliffe Park and surrounding woodlands such as Ecclesall Woods; late spring through mid-summer (May-July) sees peak grass pollen levels, prevalent across the city’s abundant parkland meadows and river valley floodplains.

Sheffield’s unique valley topography and surrounding hills can concentrate and trap airborne pollen, intensifying local symptoms; autumn (September-November) brings elevated mould spore counts, particularly from damp leaf decomposition in parks and wooded areas.

The pollen count in Sheffield today is HIGH, driven mainly by Giant Ragweed.

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
🌿 Giant Ragweed	HIGH	18 grains/m³
🌾 Grass (mixed)	MED	18 grains/m³
🌿 Common Ragweed	HIGH	17 grains/m³
🌾 Timothy Grass	MED	17 grains/m³
🌿 Mugwort	HIGH	15 grains/m³
+35 more tracked Cock's-foot Perennial Ryegrass Russian Thistle Stinging Nettle Fat Hen Pigweed Ribwort Plantain Sagebrush 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
🌿 Common Ragweed	MED	11 grains/m³
🌿 Giant Ragweed	MED	11 grains/m³
🌿 Mugwort	MED	10 grains/m³
🌿 Russian Thistle	MED	8 grains/m³
🌿 Fat Hen	MED	7 grains/m³
+35 more tracked Stinging Nettle Pigweed Grass (mixed) Cock's-foot Timothy Grass Ribwort Plantain Sagebrush Perennial Ryegrass 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
🌿 Common Ragweed	HIGH	16 grains/m³
🌿 Giant Ragweed	HIGH	16 grains/m³
🌾 Grass (mixed)	MED	16 grains/m³
🌿 Mugwort	MED	14 grains/m³
🌾 Timothy Grass	MED	14 grains/m³
+35 more tracked Cock's-foot Russian Thistle Perennial Ryegrass Stinging Nettle Fat Hen Pigweed Ribwort Plantain Sagebrush 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
🌾 Grass (mixed)	MED	16 grains/m³
🌾 Timothy Grass	MED	14 grains/m³
🌾 Cock's-foot	MED	12 grains/m³
🌿 Common Ragweed	MED	11 grains/m³
🌿 Giant Ragweed	MED	11 grains/m³
+35 more tracked Perennial Ryegrass Mugwort Russian Thistle Fat Hen Stinging Nettle Pigweed Ribwort Plantain Sagebrush 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

Last updated: 15:30 UTC

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

Map of Sheffield (53.315664°, -1.505481°)

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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