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About Pollen in Gloucester

Birch pollen, late March-April, originates from Gloucester Park and city’s mature trees; Oak pollen follows, April-May, prevalent near Robinswood Hill Country Park fringes and River Severn banks. Grass pollen dominates May-July, primarily from Alney Island’s open spaces, urban green verges, and riverside meadows.

Gloucester’s basin topography and urban structures trap airborne pollen, intensifying local concentrations; prevailing south-westerly winds from rural areas increase overall load. Autumn/Winter, mould spores rise from decaying leaf litter in areas like Barnwood Park and damp canal-side vegetation, persisting through mild, wet periods.

V.HI

11 active species

Refreshing live forecast…

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4-Day Forecast:

Morning

Grass LOW

Tree V.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	102 grains/m³
🌳 Ash	HIGH	72 grains/m³
🌳 Downy Birch	HIGH	67 grains/m³
🌳 Black Poplar	HIGH	54 grains/m³
🌳 Box Elder	HIGH	53 grains/m³
+35 more tracked Paper Birch Field Elm English Oak 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	123 grains/m³
🌳 Ash	HIGH	88 grains/m³
🌳 Downy Birch	HIGH	82 grains/m³
🌳 Black Poplar	HIGH	66 grains/m³
🌳 Box Elder	HIGH	64 grains/m³
+35 more tracked Paper Birch Field Elm English Oak 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	120 grains/m³
🌳 Ash	HIGH	85 grains/m³
🌳 Downy Birch	HIGH	79 grains/m³
🌳 Black Poplar	HIGH	64 grains/m³
🌳 Box Elder	HIGH	62 grains/m³
+35 more tracked Paper Birch Field Elm English Oak 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	151 grains/m³
🌳 Ash	V.HI	108 grains/m³
🌳 Downy Birch	V.HI	100 grains/m³
🌳 Black Poplar	HIGH	81 grains/m³
🌳 Box Elder	HIGH	79 grains/m³
+35 more tracked Paper Birch Field Elm English Oak 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	V.HI	LOW	LOW
Sat 23 May	V.HI	LOW	LOW

Map of Gloucester (51.857222°, -2.22845°)

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