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

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About Pollen in Rotherham

Rotherham’s seasonal allergy profile is pronounced: March-April sees high Birch and Alder pollen from urban trees and River Don floodplain areas; April-May, Oak pollen dominates from local woodlands and parkland, including Clifton Park. Late spring to summer, May-July, grass pollen peaks across extensive local meadows, sports fields, and the banks of the River Don and River Rother.

The town’s valley topography, particularly the River Don corridor, can trap and concentrate airborne pollen. Autumn, September-November, brings elevated mould spore counts, originating from decaying leaf litter and damp vegetation prevalent in parks and shaded residential zones.

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

HIGH

15 active species

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4-Day Forecast:

Morning

Grass MED

Tree LOW

Weed HIGH

Afternoon

Grass MED

Tree LOW

Weed HIGH

Evening

Grass LOW

Tree LOW

Weed MED

Species	Level	Count
🌿 Mugwort	HIGH	29 grains/m³
🌿 Common Ragweed	HIGH	17 grains/m³
🌿 Giant Ragweed	HIGH	16 grains/m³
🌿 Sagebrush	MED	13 grains/m³
🌾 Perennial Ryegrass	MED	11 grains/m³
+35 more tracked Grass (mixed) Cock's-foot Timothy Grass Stinging Nettle Pigweed Fat Hen Russian Thistle 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	HIGH	18 grains/m³
🌿 Common Ragweed	MED	10 grains/m³
🌿 Giant Ragweed	MED	10 grains/m³
🌿 Sagebrush	MED	8 grains/m³
🌾 Perennial Ryegrass	MED	7 grains/m³
+35 more tracked Grass (mixed) Cock's-foot Timothy Grass Stinging Nettle Pigweed Fat Hen Russian Thistle 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	HIGH	27 grains/m³
🌿 Common Ragweed	HIGH	16 grains/m³
🌿 Giant Ragweed	HIGH	15 grains/m³
🌿 Sagebrush	MED	12 grains/m³
🌾 Perennial Ryegrass	MED	10 grains/m³
+35 more tracked Grass (mixed) Cock's-foot Timothy Grass Stinging Nettle Fat Hen Russian Thistle 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	HIGH	21 grains/m³
🌿 Common Ragweed	MED	13 grains/m³
🌿 Giant Ragweed	MED	12 grains/m³
🌿 Sagebrush	MED	10 grains/m³
🌾 Cock's-foot	MED	10 grains/m³
+35 more tracked Perennial Ryegrass Timothy Grass Grass (mixed) Stinging Nettle Russian Thistle Pigweed Fat Hen 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

Last updated: 15:30 UTC

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

Map of Rotherham (53.431168°, -1.354447°)

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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