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About Pollen in Perth

Perth’s spring allergy season (March-May) is dominated by Birch and Alder pollen, originating from North Inch, South Inch, and Kinnoull Hill’s deciduous woodlands; Oak and Willow follow from urban green spaces and River Tay riparian zones. Summer (June-August) brings peak Grass pollen from extensive Tay floodplains and the expansive North Inch parkland.

The city’s valley topography, nestled between Moncreiffe Hill and Kinnoull Hill, frequently traps airborne pollen, amplifying local concentrations; late autumn/winter (September-November+) sees prevalent Mould spores due to damp conditions, decomposing leaf litter in local parks and near the River Tay.

MED

6 active species

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4-Day Forecast:

Morning

Grass LOW

Tree HIGH

Weed LOW

Afternoon

Grass LOW

Tree MED

Weed LOW

Evening

Grass LOW

Tree MED

Weed LOW

Species	Level	Count
🌳 Alder	MED	40 grains/m³
🌳 Hazel	MED	38 grains/m³
🌳 Field Elm	MED	20 grains/m³
🌳 Ash	LOW	8 grains/m³
🌳 Box Elder	LOW	4 grains/m³
+35 more tracked Black Poplar Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Fat Hen 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 London Plane Grass (mixed) Mesquite White Oak Holm Oak English Oak Common Sorrel Russian Thistle Stinging Nettle All species in the app: Android iOS
🌳 Alder	MED	33 grains/m³
🌳 Hazel	MED	31 grains/m³
🌳 Field Elm	MED	16 grains/m³
🌳 Ash	LOW	7 grains/m³
🌳 Box Elder	LOW	3 grains/m³
+35 more tracked Black Poplar Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Fat Hen 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 London Plane Grass (mixed) Mesquite White Oak Holm Oak English Oak Common Sorrel Russian Thistle Stinging Nettle All species in the app: Android iOS
🌳 Alder	MED	40 grains/m³
🌳 Hazel	MED	38 grains/m³
🌳 Field Elm	MED	20 grains/m³
🌳 Ash	LOW	8 grains/m³
🌳 Box Elder	LOW	4 grains/m³
+35 more tracked Black Poplar Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Fat Hen 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 London Plane Grass (mixed) Mesquite White Oak Holm Oak English Oak Common Sorrel Russian Thistle Stinging Nettle All species in the app: Android iOS
🌳 Alder	MED	37 grains/m³
🌳 Hazel	MED	35 grains/m³
🌳 Field Elm	MED	18 grains/m³
🌳 Ash	LOW	7 grains/m³
🌳 Box Elder	LOW	4 grains/m³
+35 more tracked Black Poplar Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Fat Hen 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 London Plane Grass (mixed) Mesquite White Oak Holm Oak English Oak 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	MED	LOW	LOW
Thu 21 May	MED	LOW	LOW
Fri 22 May	MED	LOW	LOW
Sat 23 May	MED	LOW	LOW

Map of Perth (56.3997°, -3.457645°)

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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