Name: Pollen forecast for Norwich (2026-10-17)
Creator: Pollen Count
Published: 2026-10-17T14:18:26Z
License: https://pollencount.org/terms/

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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.

The pollen count in Norwich today is moderate, driven mainly by Mugwort.

MED

14 active species

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4-Day Forecast:

Morning

Grass MED

Tree LOW

Weed LOW

Afternoon

Grass MED

Tree LOW

Weed MED

Evening

Grass LOW

Tree LOW

Weed MED

Species	Level	Count
🌿 Mugwort	MED	8 grains/m³
🌾 Perennial Ryegrass	MED	6 grains/m³
🌾 Grass (mixed)	MED	6 grains/m³
🌿 Western Ragweed	MED	5 grains/m³
🌿 Sagebrush	MED	5 grains/m³
+35 more tracked Cock's-foot Timothy Grass Pigweed Fat Hen Russian Thistle Stinging Nettle Giant Ragweed Ribwort Plantain Common Sorrel Box Elder Alder Common Ragweed 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	MED	8 grains/m³
🌾 Cock's-foot	MED	6 grains/m³
🌾 Perennial Ryegrass	MED	6 grains/m³
🌾 Timothy Grass	MED	6 grains/m³
🌾 Grass (mixed)	MED	6 grains/m³
+35 more tracked Western Ragweed Sagebrush Pigweed Fat Hen Russian Thistle Stinging Nettle Giant Ragweed Ribwort Plantain Common Sorrel Box Elder Alder Common Ragweed 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	MED	13 grains/m³
🌿 Western Ragweed	MED	8 grains/m³
🌿 Sagebrush	MED	8 grains/m³
🌾 Grass (mixed)	MED	6 grains/m³
🌾 Cock's-foot	MED	5 grains/m³
+35 more tracked Perennial Ryegrass Timothy Grass Russian Thistle Stinging Nettle Pigweed Fat Hen Ribwort Plantain Giant Ragweed Common Sorrel Box Elder Alder Common Ragweed 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	MED	13 grains/m³
🌿 Western Ragweed	MED	8 grains/m³
🌿 Sagebrush	MED	8 grains/m³
🌾 Perennial Ryegrass	MED	8 grains/m³
🌾 Timothy Grass	MED	8 grains/m³
+35 more tracked Grass (mixed) Cock's-foot Russian Thistle Stinging Nettle Pigweed Fat Hen Ribwort Plantain Giant Ragweed Common Sorrel Box Elder Alder Common Ragweed 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: 14:18 UTC

4-Day Forecast	Tree	Grass	Weed
Sat 17 Oct	LOW	MED	MED
Sun 18 Oct	LOW	MED	MED
Mon 19 Oct	LOW	MED	MED
Tue 20 Oct	LOW	MED	MED

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