Name: Pollen forecast for Leeds (2026-09-04)
Creator: Pollen Count
Published: 2026-09-04T15:01:54Z
License: https://pollencount.org/terms/

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About Pollen in Leeds

Leeds’ spring allergy profile, peaking April-May, is dominated by Birch and Oak pollen, primarily sourced from extensive urban woodlands including Roundhay Park and Golden Acre Park; May-July sees high Grass pollen levels, originating from River Aire floodplains and city green spaces.

The city’s topography, including the Aire Valley, can trap and concentrate pollen locally; Mould spores emerge late-season, August-November, fuelled by damp organic matter decomposition across Leeds’ parks and shaded urban zones.

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

HIGH

15 active species

Refreshing live forecast…

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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	20 grains/m³
🌿 Giant Ragweed	HIGH	17 grains/m³
🌿 Common Ragweed	HIGH	15 grains/m³
🌿 Sagebrush	MED	8 grains/m³
🌾 Perennial Ryegrass	MED	8 grains/m³
+35 more tracked Timothy Grass Grass (mixed) Cock's-foot Western Ragweed Stinging Nettle Pigweed Fat Hen Ribwort Plantain Russian Thistle 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
🌿 Mugwort	HIGH	24 grains/m³
🌿 Giant Ragweed	HIGH	21 grains/m³
🌿 Common Ragweed	HIGH	18 grains/m³
🌿 Sagebrush	MED	10 grains/m³
🌾 Cock's-foot	MED	10 grains/m³
+35 more tracked Perennial Ryegrass Timothy Grass Grass (mixed) Western Ragweed Stinging Nettle Pigweed Fat Hen Ribwort Plantain Russian Thistle 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
🌿 Mugwort	X.HI	64 grains/m³
🌿 Giant Ragweed	X.HI	57 grains/m³
🌿 Common Ragweed	V.HI	48 grains/m³
🌿 Sagebrush	HIGH	26 grains/m³
🌾 Perennial Ryegrass	MED	18 grains/m³
+35 more tracked Grass (mixed) Timothy Grass Stinging Nettle Cock's-foot Western Ragweed Russian Thistle Fat Hen Pigweed Ribwort Plantain 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
🌿 Mugwort	HIGH	24 grains/m³
🌿 Giant Ragweed	HIGH	21 grains/m³
🌿 Common Ragweed	HIGH	18 grains/m³
🌿 Sagebrush	MED	10 grains/m³
🌾 Cock's-foot	MED	10 grains/m³
+35 more tracked Perennial Ryegrass Timothy Grass Grass (mixed) Western Ragweed Stinging Nettle Pigweed Fat Hen Ribwort Plantain Russian Thistle 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: 15:01 UTC

4-Day Forecast	Tree	Grass	Weed
Fri 4 Sep	LOW	MED	HIGH
Sat 5 Sep	LOW	MED	HIGH
Sun 6 Sep	LOW	MED	X.HI
Mon 7 Sep	LOW	MED	HIGH

Map of Leeds (53.810492°, -1.546336°)

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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