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About Pollen in Plymouth

Plymouth’s spring (March-May) sees dominant tree pollen: Birch, prevalent in Central Park and streetscapes; Oak, widespread across Saltram Estate and Plym Valley woodlands. Summer (May-July) brings high Grass pollen from urban green spaces, roadside verges, and the extensive Plym and Tamar river valleys.

The city’s topography and coastal winds modulate pollen exposure; urban canyons and sheltered areas can concentrate allergens despite periodic sea breeze dispersion. Autumn (August-November) exhibits elevated Mould spore levels, fostered by Plymouth’s prevalent damp conditions and decaying leaf litter in parks and wooded fringes.

HIGH

9 active species

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4-Day Forecast:

Morning

Grass LOW

Tree V.HI

Weed LOW

Afternoon

Grass LOW

Tree HIGH

Weed LOW

Evening

Grass LOW

Tree MED

Weed LOW

Species	Level	Count
🌳 Paper Birch	HIGH	79 grains/m³
🌳 Downy Birch	HIGH	78 grains/m³
🌳 English Oak	HIGH	73 grains/m³
🌳 Silver Birch	HIGH	66 grains/m³
🌳 White Oak	HIGH	51 grains/m³
+35 more tracked Holm Oak London Plane Box Elder Black Poplar 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 Ash 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 Field Elm Stinging Nettle All species in the app: Android iOS
🌳 Paper Birch	V.HI	174 grains/m³
🌳 Downy Birch	V.HI	172 grains/m³
🌳 English Oak	V.HI	162 grains/m³
🌳 Silver Birch	V.HI	145 grains/m³
🌳 White Oak	V.HI	113 grains/m³
+35 more tracked Holm Oak London Plane Black Poplar Box Elder 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 Ash 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 Field Elm Stinging Nettle All species in the app: Android iOS
🌳 Paper Birch	X.HI	201 grains/m³
🌳 Downy Birch	V.HI	199 grains/m³
🌳 English Oak	V.HI	187 grains/m³
🌳 Silver Birch	V.HI	168 grains/m³
🌳 White Oak	V.HI	131 grains/m³
+35 more tracked Holm Oak London Plane Black Poplar Box Elder 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 Ash 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 Field Elm Stinging Nettle All species in the app: Android iOS
🌳 Paper Birch	V.HI	123 grains/m³
🌳 Downy Birch	V.HI	121 grains/m³
🌳 English Oak	V.HI	114 grains/m³
🌳 Silver Birch	V.HI	102 grains/m³
🌳 White Oak	HIGH	80 grains/m³
+35 more tracked Holm Oak London Plane Box Elder Black Poplar 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 Ash 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 Field Elm Stinging Nettle All species in the app: Android iOS

Last updated: 14:02 UTC

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

Map of Plymouth (50.388732°, -4.142787°)

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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