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

Latest air quality data: Saitama-shi

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

particulate matter (PM2.5) dust - 37 (Unhealthy for Sensitive Groups)
particulate matter (PM10) suspended dust - 39 (Moderate)
ozone (O3) - 71 (Moderate)
nitrogen dioxide (NO2) - 40 (Moderate)
sulfur dioxide (SO2) - 33 (Good)
carbon monoxide (CO) - 255 (Good)

Real-time Air Quality Index (AQI) for Saitama-shi, Thursday, August 27, 2026: 3.

AQI 3 Unhealthy for Sensitive Groups

What is the air quality in Saitama-shi today? Is the air polluted in Saitama-shi?. Is there smog?

Today (Thursday, August 27, 2026) air quality is moderately polluted in Saitama-shi. Healthy people may experience slight irritations and sensitive persons will be slightly affected to a larger extent by the pollutions in Saitama-shi.

What is the current level of PM2.5 in Saitama-shi? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 37 (Unhealthy for Sensitive Groups) For comparison, the highest level of PM2.5 in Saitama-shi in the last 7 days was: 42 (Tuesday, August 25, 2026) and the lowest: 15 (Sunday, August 23, 2026).

What is the level of PM10 today in Saitama-shi? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Saitama-shi is: 39 (Moderate)

How is the O3 level today in Saitama-shi? (ozone (O3))
71 (Moderate)

How high is the level of NO2? (nitrogen dioxide (NO2))
40 (Moderate)

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

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

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

PM2,5 37 (Unhealthy for Sensitive Groups)

PM10 39 (Moderate)

O3 71 (Moderate)

NO2 40 (Moderate)

SO2 33 (Good)

CO 255 (Good)

Data on air pollution from recent days in Saitama-shi

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	36 Unhealthy for Sensitive Groups	36 Unhealthy for Sensitive Groups	42 Unhealthy for Sensitive Groups	29 Moderate	15 Moderate	23 Moderate	25 Moderate	28 Moderate
pm10	37 Moderate	38 Moderate	43 Moderate	29 Moderate	15 Good	23 Moderate	27 Moderate	32 Moderate
o3	68 Good	113 Moderate	109 Moderate	107 Moderate	87 Moderate	92 Moderate	53 Good	47 Good
no2	36 Good	37 Good	35 Good	31 Good	13 Good	20 Good	40 Moderate	42 Moderate
so2	23 Good	26 Good	23 Good	22 Good	7 Good	12 Good	27 Good	27 Good
co	261 Good	282 Good	344 Good	283 Good	188 Good	238 Good	286 Good	343 Good

data source »

Quality of life in Saitama-shi

Green and Parks in the City

Saitama-shi 63%

South Korea: 61% Taiwan: 53% Northern Mariana Islands: 83% Guam: 29%

particulate matter PM2.5

Saitama-shi 17 (Moderate)

Pleasure of spending time in the city

Saitama-shi 66%

South Korea: 43% North Korea: 44% Taiwan: 47% Northern Mariana Islands: 81% Guam: 62%

particulate matter PM10

Saitama-shi 35 (Moderate)

Air Pollution

Saitama-shi 37%

South Korea: 69% North Korea: 44% Taiwan: 61% Northern Mariana Islands: 11% Guam: 33%

Garbage Disposal

Saitama-shi 68%

South Korea: 62% North Korea: 47% Taiwan: 65% Northern Mariana Islands: 42% Guam: 35%

Availability and quality of drinking water

Saitama-shi 71%

South Korea: 72% North Korea: 47% Taiwan: 54% Northern Mariana Islands: 56% Guam: 52%

Cleanliness and tidiness

Saitama-shi 72%

South Korea: 63% North Korea: 58% Taiwan: 56% Northern Mariana Islands: 56% Guam: 37%

Noise and Light pollution

Saitama-shi 45%

North Korea: 33% Taiwan: 59% Northern Mariana Islands: 42% Guam: 54%

Water Pollution

Saitama-shi 37%

South Korea: 38% North Korea: 56% Taiwan: 58% Northern Mariana Islands: 58% Guam: 46%

Source: Numbeo

Saitama-shi

Thursday, August 27, 2026 at 10:00 AM

PM2,5 37 (Unhealthy for Sensitive Groups)

particulate matter (PM2.5) dust

PM10 39 (Moderate)

particulate matter (PM10) suspended dust

O3 71 (Moderate)

ozone (O3)

NO2 40 (Good)

nitrogen dioxide (NO2)

SO2 33 (Good)

sulfur dioxide (SO2)

CO 255 (Good)

carbon monoxide (CO)

Saitama-shi

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	28	25	23	15	29	42	36	36
pm10	32	27	23	15	29	43	38	37
o3	47	53	92	87	107	109	113	68
no2	42	40	20	13	31	35	37	36
so2	27	27	12	7.5	22	23	26	23
co	343	286	238	188	283	344	282	261

* 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 Saitama-shi — 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 Saitama-shi today?

The current average PM2.5 across Saitama-shi is about 37 µg/m³, rated “Unhealthy for Sensitive Groups”. Air quality is acceptable, but unusually sensitive people should limit prolonged outdoor exertion.

What is the current PM2.5 level in Saitama-shi?

Right now PM2.5 in Saitama-shi averages about 37 µg/m³ (“Unhealthy for Sensitive Groups”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.

Which day last week had the worst air in Saitama-shi?

Over the past week, the highest daily PM2.5 in Saitama-shi was recorded on Tuesday, August 25 (about 42 µg/m³).

What is the UV index in Saitama-shi today?

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

Does today's wind help disperse smog in Saitama-shi?

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.