Name: Pollen forecast for Southampton (2026-09-01)
Creator: Pollen Count
Published: 2026-09-01T15:30:42Z
License: https://pollencount.org/terms/

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About Pollen in Southampton

Southampton’s allergy profile sees peak Birch and Oak pollen March-May, originating from mature trees across Southampton Common and urban parkland; late-May through July brings high grass pollen from River Itchen/Test floodplains and Eastleigh’s surrounding meadows. Coastal proximity and urban density can concentrate airborne allergens, intensifying local pollen counts; autumn (September-November) introduces elevated mould spores from decaying leaf litter in damp parkland and humid riverine environments.

The pollen count in Southampton today is V.HI, driven mainly by Mugwort.

V.HI

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 V.HI

Evening

Grass LOW

Tree LOW

Weed HIGH

Species	Level	Count
🌿 Mugwort	V.HI	34 grains/m³
🌿 Giant Ragweed	HIGH	27 grains/m³
🌿 Common Ragweed	HIGH	22 grains/m³
🌾 Grass (mixed)	MED	11 grains/m³
🌾 Perennial Ryegrass	MED	10 grains/m³
+35 more tracked Cock's-foot Timothy Grass Russian Thistle Stinging Nettle Western Ragweed Pigweed Fat Hen Ribwort Plantain Sagebrush 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
🌿 Mugwort	V.HI	33 grains/m³
🌿 Giant Ragweed	HIGH	26 grains/m³
🌿 Common Ragweed	HIGH	22 grains/m³
🌾 Grass (mixed)	MED	13 grains/m³
🌾 Perennial Ryegrass	MED	11 grains/m³
+35 more tracked Timothy Grass Cock's-foot Russian Thistle Stinging Nettle Western Ragweed Pigweed Fat Hen Ribwort Plantain Sagebrush 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
🌿 Mugwort	V.HI	35 grains/m³
🌿 Giant Ragweed	HIGH	28 grains/m³
🌿 Common Ragweed	HIGH	24 grains/m³
🌾 Grass (mixed)	MED	8 grains/m³
🌿 Russian Thistle	MED	8 grains/m³
+35 more tracked Stinging Nettle Western Ragweed Fat Hen Perennial Ryegrass Timothy Grass Pigweed Cock's-foot Ribwort Plantain Sagebrush 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
🌿 Mugwort	V.HI	30 grains/m³
🌿 Giant Ragweed	HIGH	24 grains/m³
🌿 Common Ragweed	HIGH	20 grains/m³
🌿 Russian Thistle	MED	7 grains/m³
🌿 Stinging Nettle	MED	7 grains/m³
+35 more tracked Pigweed Western Ragweed Fat Hen Ribwort Plantain Grass (mixed) Sagebrush Cock's-foot Perennial Ryegrass Timothy Grass 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	V.HI
Wed 2 Sep	LOW	MED	V.HI
Thu 3 Sep	LOW	MED	V.HI
Fri 4 Sep	LOW	MED	V.HI

Map of Southampton (50.95073°, -1.357649°)

More in United Kingdom

Aberdeen Ashford Aylesbury Banbury Barking and Dagenham Barnet

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