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About Pollen in Norwich

Spring in Norwich experiences dominant tree pollen, primarily Birch and Oak, originating from mature specimens within Eaton Park, Earlham Park, and UEA grounds from March through May; summer brings high grass pollen levels, particularly from the extensive meadows bordering the River Wensum and Broadland waterways, peaking June to August.

Norwich’s urban topography can locally concentrate airborne pollen; the Broadland’s damp, low-lying areas, especially along the Wensum valley, elevate late-season fungal spore (mould) counts, peaking with autumnal leaf decomposition.

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	133 grains/m³
🌳 Downy Birch	HIGH	94 grains/m³
🌳 Paper Birch	HIGH	73 grains/m³
🌳 English Oak	HIGH	56 grains/m³
🌳 Ash	MED	47 grains/m³
+35 more tracked Black Poplar Box Elder Holm Oak Field Elm White 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	179 grains/m³
🌳 Downy Birch	V.HI	126 grains/m³
🌳 Paper Birch	HIGH	98 grains/m³
🌳 English Oak	HIGH	75 grains/m³
🌳 Ash	HIGH	64 grains/m³
+35 more tracked Black Poplar Box Elder Holm Oak Field Elm White 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	177 grains/m³
🌳 Downy Birch	V.HI	124 grains/m³
🌳 Paper Birch	HIGH	97 grains/m³
🌳 English Oak	HIGH	74 grains/m³
🌳 Ash	HIGH	63 grains/m³
+35 more tracked Black Poplar Box Elder Holm Oak Field Elm White 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	119 grains/m³
🌳 Downy Birch	HIGH	84 grains/m³
🌳 Paper Birch	HIGH	65 grains/m³
🌳 English Oak	HIGH	50 grains/m³
🌳 Ash	MED	42 grains/m³
+35 more tracked Box Elder Black Poplar Holm Oak Field Elm White 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	V.HI	LOW	LOW
Sat 23 May	V.HI	LOW	LOW

Map of Norwich (52.654396°, 1.320168°)

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