Okayama: Air Pollution Today — AQI Index, PM2.5/PM10, Smog Alerts and Forecast

Latest air quality data: Okayama

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Pollution and air quality forecast for Okayama. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Okayama:

particulate matter (PM2.5) dust - 9 (Good)
particulate matter (PM10) suspended dust - 13 (Good)
ozone (O3) - 51 (Good)
nitrogen dioxide (NO2) - 11 (Good)
sulfur dioxide (SO2) - 7 (Good)
carbon monoxide (CO) - 287 (Good)

Real-time Air Quality Index (AQI) for Okayama, Thursday, August 27, 2026: 1.

AQI 1 Good

What is the air quality in Okayama today? Is the air polluted in Okayama?. Is there smog?

Today (Thursday, August 27, 2026) air quality is good. The air quality has no effect on health. Everyone can continue their outdoor activities normally in Okayama.

What is the current level of PM2.5 in Okayama? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 9 (Good) For comparison, the highest level of PM2.5 in Okayama in the last 7 days was: 19 (Saturday, August 22, 2026) and the lowest: 11 (Wednesday, August 26, 2026).

What is the level of PM10 today in Okayama? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Okayama is: 13 (Good)

How is the O3 level today in Okayama? (ozone (O3))
51 (Good)

How high is the level of NO2? (nitrogen dioxide (NO2))
11 (Good)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
7 (Good)

How high is the CO level? (carbon monoxide (CO))
287 (Good)

Current data Thursday, August 27, 2026 at 10:00 AM

PM2,5 9 (Good)

PM10 13 (Good)

O3 51 (Good)

NO2 11 (Good)

SO2 7 (Good)

CO 287 (Good)

Data on air pollution from recent days in Okayama

index	2026-08-27	2026-08-26	2026-08-25	2026-08-24	2026-08-23	2026-08-22	2026-08-21	2026-08-20
pm25	12 Good	11 Good	12 Good	11 Good	16 Moderate	19 Moderate	15 Moderate	14 Moderate
pm10	15 Good	15 Good	16 Good	13 Good	17 Good	21 Moderate	17 Good	18 Good
o3	50 Good	61 Good	84 Moderate	87 Moderate	90 Moderate	96 Moderate	81 Moderate	80 Moderate
no2	16 Good	12 Good	12 Good	10 Good	10 Good	11 Good	14 Good	13 Good
so2	6 Good	4 Good	5 Good	4 Good	4 Good	5 Good	5 Good	5 Good
co	233 Good	174 Good	168 Good	154 Good	171 Good	210 Good	166 Good	159 Good

data source »

Okayama

Thursday, August 27, 2026 at 10:00 AM

PM2,5 9.3 (Good)

particulate matter (PM2.5) dust

PM10 13 (Good)

particulate matter (PM10) suspended dust

O3 51 (Good)

ozone (O3)

NO2 11 (Good)

nitrogen dioxide (NO2)

SO2 7.3 (Good)

sulfur dioxide (SO2)

CO 287 (Good)

carbon monoxide (CO)

Okayama

index	2026-08-20	2026-08-21	2026-08-22	2026-08-23	2026-08-24	2026-08-25	2026-08-26	2026-08-27
pm25	14	15	19	16	11	12	11	12
pm10	18	17	21	17	13	16	15	15
o3	80	81	96	90	87	84	61	50
no2	13	14	11	9.7	9.8	12	12	16
so2	4.8	5.2	4.8	4.1	4.4	4.9	4.1	6.1
co	159	166	210	171	154	168	174	233

* Pollution data source: https://openaq.org () The data is licensed under CC-By 4.0

🌦️ Weather · 16-day Forecast — Japan

16-day weather forecast for Japan: today around 32°C (rain), lows near 21°C. Daily temperature and conditions, updated every day. Wind is light today (about 6 km/h) — pollutants can build up near the ground.

☀️ UV Index · 16-day Forecast — Japan

The UV index in Japan today is 7.1 (high) — unprotected fair skin can burn in about 30 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Okayama — compare nearby locations.

Tokyo 30 µg/m³
Yokohama 30 µg/m³
Osaka City 8 µg/m³
Nagoya 17 µg/m³
Sapporo 6 µg/m³
Kōbe Shi 7 µg/m³
Kyoto 6 µg/m³
Fukuoka City 6 µg/m³

Frequently asked questions

Is the air safe to breathe in Okayama today?

The current average PM2.5 across Okayama is about 9 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.

What is the current PM2.5 level in Okayama?

Right now PM2.5 in Okayama averages about 9 µg/m³ (“Good”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.

Which day last week had the worst air in Okayama?

Over the past week, the highest daily PM2.5 in Okayama was recorded on Saturday, August 22 (about 19 µg/m³).

What is the UV index in Okayama today?

The UV index in Okayama today is 7.1 (high) — unprotected fair skin can burn in about 30 minutes.

Does today's wind help disperse smog in Okayama?

Wind is light today (about 6 km/h) — pollutants can build up near the ground.

How is air quality measured?

Air quality here is based on PM2.5 — the concentration of fine particulate matter in µg/m³. Lower values mean cleaner air. Data is updated daily from Open-Meteo.