Name: Pollen forecast for Sendai (2026-09-07)
Creator: Pollen Count
Published: 2026-09-07T16:34:39Z
License: https://pollencount.org/terms/

The pollen count in Sendai today is MED, driven mainly by Giant Ragweed.

MED

16 active species

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4-Day Forecast:

Morning

Grass LOW

Tree LOW

Weed X.HI

Afternoon

Grass LOW

Tree LOW

Weed MED

Evening

Grass MED

Tree LOW

Weed HIGH

Species	Level	Count
🌿 Giant Ragweed	MED	7 grains/m³
🌿 Western Ragweed	LOW	3 grains/m³
🌿 Mugwort	LOW	2 grains/m³
🌿 Pigweed	LOW	1 grains/m³
🌿 Common Ragweed	LOW	1 grains/m³
+35 more tracked Fat Hen Cock's-foot Perennial Ryegrass Pellitory-of-the-wall Upright Pellitory Timothy Grass Ribwort Plantain Grass (mixed) Common Sorrel Russian Thistle Stinging Nettle Box Elder Alder Sagebrush 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	LOW	3 grains/m³
🌿 Western Ragweed	LOW	1 grains/m³
🌿 Mugwort	LOW	1 grains/m³
🌳 Box Elder	LOW	-
🌳 Alder	LOW	-
+35 more tracked Pigweed Common Ragweed Sagebrush 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 Olive 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
🌿 Giant Ragweed	LOW	2 grains/m³
🌿 Western Ragweed	LOW	1 grains/m³
🌿 Mugwort	LOW	1 grains/m³
🌳 Box Elder	LOW	-
🌳 Alder	LOW	-
+35 more tracked Pigweed Common Ragweed Sagebrush 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 Olive 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
🌿 Giant Ragweed	MED	7 grains/m³
🌿 Western Ragweed	LOW	3 grains/m³
🌿 Mugwort	LOW	2 grains/m³
🌿 Pigweed	LOW	1 grains/m³
🌿 Common Ragweed	LOW	1 grains/m³
+35 more tracked Fat Hen Bermuda Grass Cock's-foot Perennial Ryegrass Pellitory-of-the-wall Upright Pellitory Timothy Grass Ribwort Plantain Grass (mixed) Common Sorrel Russian Thistle Stinging Nettle Box Elder Alder 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: 16:34 UTC

4-Day Forecast	Tree	Grass	Weed
Mon 7 Sep	LOW	LOW	MED
Tue 8 Sep	LOW	LOW	LOW
Wed 9 Sep	LOW	LOW	LOW
Thu 10 Sep	LOW	LOW	MED

Map of Sendai (38.2682°, 140.8694°)

More in Japan

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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