Name: Pollen forecast for Grimsby (2026-09-01)
Creator: Pollen Count
Published: 2026-09-01T15:30:31Z
License: https://pollencount.org/terms/

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About Pollen in Grimsby

Grimsby experiences peak tree pollen from March to May, primarily Birch and Oak, originating from People’s Park, Grant Thorold Park, and residential street trees; Grass pollen dominates May through July, sourced from River Freshney embankments, surrounding agricultural fields, and urban green verges.

Grimsby’s coastal proximity and flat landscape modify pollen dispersal; sea breezes can clear, yet urban corridors and sheltered areas accumulate. Late autumn brings heightened mould spore counts, September-November, due to damp leaf decomposition in Grimsby’s parklands and shaded urban areas.

The pollen count in Grimsby 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 HIGH

Species	Level	Count
🌿 Mugwort	HIGH	24 grains/m³
🌿 Sagebrush	HIGH	21 grains/m³
🌿 Common Ragweed	MED	14 grains/m³
🌿 Giant Ragweed	MED	13 grains/m³
🌾 Grass (mixed)	MED	11 grains/m³
+35 more tracked Timothy Grass Perennial Ryegrass Russian Thistle Fat Hen Cock's-foot Stinging Nettle 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	25 grains/m³
🌿 Sagebrush	HIGH	22 grains/m³
🌿 Common Ragweed	HIGH	15 grains/m³
🌿 Giant Ragweed	MED	14 grains/m³
🌾 Grass (mixed)	MED	14 grains/m³
+35 more tracked Timothy Grass Cock's-foot Perennial Ryegrass Russian Thistle Stinging Nettle Fat Hen 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	19 grains/m³
🌿 Sagebrush	HIGH	17 grains/m³
🌿 Common Ragweed	MED	11 grains/m³
🌿 Giant Ragweed	MED	11 grains/m³
🌾 Grass (mixed)	MED	9 grains/m³
+35 more tracked Timothy Grass Russian Thistle Cock's-foot Perennial Ryegrass Stinging Nettle Fat Hen 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	15 grains/m³
🌿 Sagebrush	MED	13 grains/m³
🌾 Grass (mixed)	MED	10 grains/m³
🌿 Common Ragweed	MED	9 grains/m³
🌿 Giant Ragweed	MED	8 grains/m³
+35 more tracked Timothy Grass Cock's-foot Perennial Ryegrass Russian Thistle Fat Hen Stinging Nettle Pigweed Ribwort Plantain Western Ragweed 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: 15:30 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 Grimsby (53.561068°, -0.095959°)

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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