Name: Pollen forecast for Seoul (2026-10-17)
Creator: Pollen Count
Published: 2026-10-16T15:26:38Z
License: https://pollencount.org/terms/

The pollen count in Seoul today is moderate, driven mainly by Perennial Ryegrass.

MED

14 active species

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4-Day Forecast:

Morning

Grass MED

Tree LOW

Weed MED

Afternoon

Grass MED

Tree LOW

Weed MED

Evening

Grass LOW

Tree LOW

Weed MED

Species	Level	Count
🌾 Perennial Ryegrass	MED	12 grains/m³
🌾 Grass (mixed)	MED	12 grains/m³
🌾 Cock's-foot	MED	11 grains/m³
🌾 Timothy Grass	MED	11 grains/m³
🌿 Mugwort	MED	10 grains/m³
+35 more tracked Bermuda Grass Upright Pellitory Pellitory-of-the-wall Stinging Nettle Pigweed Fat Hen Ribwort Plantain Common Sorrel Russian Thistle Box Elder Alder Common Ragweed Western Ragweed Giant Ragweed Sagebrush Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress 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
🌿 Mugwort	MED	6 grains/m³
🌿 Pellitory-of-the-wall	LOW	4 grains/m³
🌿 Upright Pellitory	LOW	4 grains/m³
🌿 Stinging Nettle	LOW	4 grains/m³
🌿 Pigweed	LOW	3 grains/m³
+35 more tracked Fat Hen Ribwort Plantain Perennial Ryegrass Timothy Grass Grass (mixed) Common Sorrel Russian Thistle Bermuda Grass Cock's-foot Box Elder Alder Common Ragweed Western Ragweed Giant Ragweed Sagebrush Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress 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
🌾 Perennial Ryegrass	MED	11 grains/m³
🌾 Timothy Grass	MED	11 grains/m³
🌾 Grass (mixed)	MED	11 grains/m³
🌿 Mugwort	MED	10 grains/m³
🌾 Cock's-foot	MED	10 grains/m³
+35 more tracked Bermuda Grass Upright Pellitory Pellitory-of-the-wall Stinging Nettle Pigweed Fat Hen Ribwort Plantain Common Sorrel Russian Thistle Box Elder Alder Common Ragweed Western Ragweed Giant Ragweed Sagebrush Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress 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: 15:26 UTC

4-Day Forecast	Tree	Grass	Weed
Sat 17 Oct	LOW	MED	MED
Sun 18 Oct	LOW	LOW	MED
Mon 19 Oct	LOW	MED	MED

Map of Seoul (37.5665°, 126.978°)

More in South Korea

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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