Pollen Count in Japan

4-Day Chart
Annual Overview

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Japan's pollen season usually starts in February. Cedar and cypress trees release a lot of pollen. It lasts until April or May. Spring is a beautiful but difficult time.

Updated: 4/27/2026

People wear masks outside to help. They also wash their hands and face often. Windows are kept closed to keep pollen out.

In Montenegro, pollen season starts in March. Oak, beech, and pine trees release pollen. It ends in May. Summer arrives with warm weather.

People in Montenegro enjoy nature. They visit parks and forests. But some days, they stay inside when pollen counts are high. Pollen counts are usually higher in the morning.

Pollen Forecast Chart

Recommendations

When pollen concentrations reach a peak, we suggest these simple steps to help with hay fever. These tips are extra important on windy days when plants are in peak anthesis (the time when they release the most pollen).

Wear masks if necessary
Shower after going out
Wear sunglasses if windy
Close windows and doors
Use an indoor air purifier
Avoid wearing woolen clothes outside
Limit outdoor activities

Annual Pollen Overview

Check out this month-by-month overview of the daily average pollen count in Japan 🌾. This data is based on previous years and serves as a guideline to help you understand when different pollen seasons typically occur in your city.

	Alder	Birch	Grass	Mugwort	Olive	Ragweed
Jan	0	0	0	0	0	0
Feb	0.8	0	0	0	0	0
Mar	26	12.5	2.8	0	0	0
Apr	90.2	291.4	12	0	0.6	0
May	0.6	419.2	71.9	0	58.2	0
Jun	0	104.1	217	0	158.3	0
Jul	0	0	100.2	0.8	8.6	0.2
Aug	0	0	40.3	7.3	0.1	53.2
Sep	0	0	10.1	2.8	0	55.9
Oct	0	0	1	0	0	0.1
Nov	0	0	0.1	0	0	0
Dec	0	0	0	0	0	0

Nearby Places

Disclaimer * The pollen count information provided for Japan is for educational purposes only, sourced from the CAMS European air quality database. We cannot guarantee its accuracy or reliability. This information is not a substitute for professional medical advice. Consult a qualified healthcare provider for medical concerns. We are not medical professionals.