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About Pollen in Chester

Chester experiences peak tree pollen March-May; Birch and Oak are dominant, sourced from Grosvenor Park and the city’s mature urban canopy. Grass pollen then prevails May-July, originating from extensive Chester Meadows and River Dee banks. The city’s walled geography can locally concentrate airborne allergens; rural Cheshire contributes additional pollen drift. Late-season mould spores escalate August-October, exacerbated by damp River Dee environments and decaying leaf litter.

V.HI

11 active species

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4-Day Forecast:

Morning

Grass LOW

Tree X.HI

Weed LOW

Afternoon

Grass LOW

Tree V.HI

Weed LOW

Evening

Grass LOW

Tree MED

Weed LOW

Species	Level	Count
🌳 Silver Birch	V.HI	101 grains/m³
🌳 Downy Birch	HIGH	69 grains/m³
🌳 Paper Birch	HIGH	53 grains/m³
🌳 Ash	MED	45 grains/m³
🌳 English Oak	MED	40 grains/m³
+35 more tracked Black Poplar Box Elder Field Elm White Oak Holm Oak London Plane Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain Grass (mixed) Mesquite Common Sorrel Russian Thistle Stinging Nettle All species in the app: Android iOS
🌳 Silver Birch	V.HI	136 grains/m³
🌳 Downy Birch	HIGH	93 grains/m³
🌳 Paper Birch	HIGH	72 grains/m³
🌳 Ash	HIGH	61 grains/m³
🌳 English Oak	HIGH	54 grains/m³
+35 more tracked Black Poplar Box Elder Field Elm White Oak Holm Oak London Plane Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain Grass (mixed) Mesquite Common Sorrel Russian Thistle Stinging Nettle All species in the app: Android iOS
🌳 Silver Birch	HIGH	98 grains/m³
🌳 Downy Birch	HIGH	67 grains/m³
🌳 Paper Birch	HIGH	51 grains/m³
🌳 Ash	MED	43 grains/m³
🌳 English Oak	MED	39 grains/m³
+35 more tracked Black Poplar Box Elder Field Elm White Oak Holm Oak London Plane Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain Grass (mixed) Mesquite Common Sorrel Russian Thistle Stinging Nettle All species in the app: Android iOS
🌳 Silver Birch	V.HI	152 grains/m³
🌳 Downy Birch	V.HI	104 grains/m³
🌳 Paper Birch	HIGH	80 grains/m³
🌳 Ash	HIGH	68 grains/m³
🌳 English Oak	HIGH	61 grains/m³
+35 more tracked Black Poplar Box Elder Field Elm White Oak Holm Oak London Plane Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain Grass (mixed) Mesquite Common Sorrel Russian Thistle Stinging Nettle All species in the app: Android iOS

Last updated: 14:02 UTC

4-Day Forecast	Tree	Grass	Weed
Wed 20 May	V.HI	LOW	LOW
Thu 21 May	V.HI	LOW	LOW
Fri 22 May	HIGH	LOW	LOW
Sat 23 May	V.HI	LOW	LOW

Map of Chester (53.20114°, -2.880899°)

More in United Kingdom

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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