Name: Pollen forecast for Nantes (2026-08-31)
Creator: Pollen Count
Published: 2026-09-01T09:02:00Z
License: https://pollencount.org/terms/

The pollen count in Nantes today is V.HI, driven mainly by Giant Ragweed.

V.HI

17 active species

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4-Day Forecast:

Morning

Grass MED

Tree LOW

Weed HIGH

Afternoon

Grass MED

Tree LOW

Weed V.HI

Evening

Grass LOW

Tree LOW

Weed HIGH

Species	Level	Count
🌿 Giant Ragweed	V.HI	34 grains/m³
🌿 Common Ragweed	HIGH	28 grains/m³
🌿 Mugwort	HIGH	18 grains/m³
🌿 Western Ragweed	MED	12 grains/m³
🌾 Perennial Ryegrass	MED	10 grains/m³
+35 more tracked Grass (mixed) Cock's-foot Pellitory-of-the-wall Upright Pellitory Timothy Grass Stinging Nettle Fat Hen Russian Thistle Pigweed Ribwort Plantain Common Sorrel Sagebrush 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 Parthenium Weed London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Field Elm All species in the app: Android iOS
🌿 Giant Ragweed	HIGH	22 grains/m³
🌿 Common Ragweed	HIGH	18 grains/m³
🌿 Mugwort	MED	12 grains/m³
🌿 Western Ragweed	MED	8 grains/m³
🌾 Perennial Ryegrass	MED	8 grains/m³
+35 more tracked Grass (mixed) Cock's-foot Timothy Grass Pellitory-of-the-wall Upright Pellitory Russian Thistle Stinging Nettle Pigweed Fat Hen Ribwort Plantain Common Sorrel Sagebrush 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 Parthenium Weed London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Field Elm All species in the app: Android iOS
🌿 Giant Ragweed	V.HI	43 grains/m³
🌿 Common Ragweed	V.HI	35 grains/m³
🌿 Mugwort	HIGH	22 grains/m³
🌿 Western Ragweed	HIGH	16 grains/m³
🌿 Pellitory-of-the-wall	MED	12 grains/m³
+35 more tracked Perennial Ryegrass Upright Pellitory Grass (mixed) Cock's-foot Timothy Grass Stinging Nettle Russian Thistle Pigweed Fat Hen Ribwort Plantain Common Sorrel Sagebrush 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 Parthenium Weed London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Field Elm All species in the app: Android iOS
🌿 Giant Ragweed	V.HI	48 grains/m³
🌿 Common Ragweed	V.HI	39 grains/m³
🌿 Mugwort	HIGH	25 grains/m³
🌿 Western Ragweed	HIGH	17 grains/m³
🌿 Pellitory-of-the-wall	MED	13 grains/m³
+35 more tracked Upright Pellitory Stinging Nettle Fat Hen Perennial Ryegrass Grass (mixed) Russian Thistle Pigweed Cock's-foot Timothy Grass Ribwort Plantain Common Sorrel Sagebrush 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 Parthenium Weed London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Field Elm All species in the app: Android iOS

Last updated: 09:02 UTC

4-Day Forecast	Tree	Grass	Weed
Mon 31 Aug	LOW	MED	V.HI
Tue 1 Sep	LOW	MED	HIGH
Wed 2 Sep	LOW	MED	V.HI
Thu 3 Sep	LOW	MED	V.HI

Map of Nantes (47.2184°, -1.5536°)

More in France

Bordeaux Grenoble Lille Lyon Marseille Montpellier

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