LOW

1 active species

Refreshing live forecast…

.forecast-refresh-status{display:none!important}.date-tab{cursor:default;opacity:.55}Showing today's cached forecast. Enable JavaScript to switch days and load live data.

4-Day Forecast:

Morning

Grass LOW

Tree LOW

Weed LOW

Afternoon

Grass LOW

Tree LOW

Weed LOW

Evening

Grass LOW

Tree MED

Weed LOW

Species	Level	Count
🌳 Olive	LOW	1 grains/m³
🌳 Box Elder	LOW	-
🌳 Alder	LOW	-
🌿 Pigweed	LOW	-
🌿 Common Ragweed	LOW	-
+35 more tracked Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Ash Mountain Cedar Perennial Ryegrass White Mulberry Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain London Plane Grass (mixed) Black Poplar Mesquite White Oak Holm Oak English Oak Common Sorrel Russian Thistle Field Elm Stinging Nettle All species in the app: Android iOS
🌳 Olive	LOW	2 grains/m³
🌳 Box Elder	LOW	-
🌳 Alder	LOW	-
🌿 Pigweed	LOW	-
🌿 Common Ragweed	LOW	-
+35 more tracked Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Ash Mountain Cedar Perennial Ryegrass White Mulberry Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain London Plane Grass (mixed) Black Poplar Mesquite White Oak Holm Oak English Oak Common Sorrel Russian Thistle Field Elm Stinging Nettle All species in the app: Android iOS
🌳 Olive	MED	15 grains/m³
🌾 Perennial Ryegrass	MED	6 grains/m³
🌾 Cock's-foot	MED	5 grains/m³
🌾 Bermuda Grass	LOW	4 grains/m³
🌾 Grass (mixed)	LOW	4 grains/m³
+35 more tracked Pellitory-of-the-wall Upright Pellitory Timothy Grass Pigweed Ribwort Plantain Common Sorrel Stinging Nettle Fat Hen Russian Thistle Box Elder Alder Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress Ash Mountain Cedar White Mulberry Parthenium Weed London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Field Elm All species in the app: Android iOS
🌳 Olive	LOW	8 grains/m³
🌾 Perennial Ryegrass	LOW	2 grains/m³
🌿 Pellitory-of-the-wall	LOW	2 grains/m³
🌿 Upright Pellitory	LOW	2 grains/m³
🌿 Ribwort Plantain	LOW	2 grains/m³
+35 more tracked Common Sorrel Stinging Nettle Pigweed Fat Hen Bermuda Grass Cock's-foot Timothy Grass Grass (mixed) Box Elder Alder Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress Ash Mountain Cedar White Mulberry Parthenium Weed London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Russian Thistle Field Elm All species in the app: Android iOS

Last updated: 14:03 UTC

4-Day Forecast	Tree	Grass	Weed
Wed 20 May	LOW	LOW	LOW
Thu 21 May	LOW	LOW	LOW
Fri 22 May	MED	MED	LOW
Sat 23 May	LOW	LOW	LOW

Map of Seoul (37.5665°, 126.978°)

More in South Korea

Busan Daegu Daejeon Incheon Jeju

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