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

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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.

The pollen count in Perth today is moderate, driven mainly by Grass (mixed).

MED

10 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 LOW

Species	Level	Count
🌾 Grass (mixed)	MED	12 grains/m³
🌿 Stinging Nettle	MED	12 grains/m³
🌿 Fat Hen	MED	11 grains/m³
🌾 Timothy Grass	MED	11 grains/m³
🌾 Cock's-foot	MED	9 grains/m³
+35 more tracked Perennial Ryegrass Mugwort Ribwort Plantain Common Sorrel Sagebrush Box Elder Alder Pigweed Common Ragweed Western Ragweed Giant 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 Russian Thistle Field Elm All species in the app: Android iOS
🌾 Grass (mixed)	MED	10 grains/m³
🌿 Stinging Nettle	MED	10 grains/m³
🌿 Fat Hen	MED	9 grains/m³
🌾 Timothy Grass	MED	9 grains/m³
🌾 Cock's-foot	MED	8 grains/m³
+35 more tracked Perennial Ryegrass Mugwort Ribwort Plantain Common Sorrel Sagebrush Box Elder Alder Pigweed Common Ragweed Western Ragweed Giant 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 Russian Thistle Field Elm All species in the app: Android iOS
🌾 Grass (mixed)	MED	10 grains/m³
🌿 Stinging Nettle	MED	10 grains/m³
🌿 Fat Hen	MED	9 grains/m³
🌾 Timothy Grass	MED	9 grains/m³
🌾 Cock's-foot	MED	8 grains/m³
+35 more tracked Perennial Ryegrass Mugwort Ribwort Plantain Common Sorrel Sagebrush Box Elder Alder Pigweed Common Ragweed Western Ragweed Giant 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 Russian Thistle Field Elm All species in the app: Android iOS
🌿 Fat Hen	LOW	1 grains/m³
🌾 Grass (mixed)	LOW	1 grains/m³
🌿 Stinging Nettle	LOW	1 grains/m³
🌳 Box Elder	LOW	-
🌳 Alder	LOW	-
+35 more tracked Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress 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 London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Common Sorrel Russian Thistle 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	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