Japan: Air Quality Today — AQI Index, Smog, Pollen, UV and City Forecasts

Locations

Tokyo
30 PM2.5 µg/m³
Moderate
PM10 36 NO₂ 34 O₃ 38
Yokohama
30 PM2.5 µg/m³
Moderate
PM10 36 NO₂ 34 O₃ 38
Osaka City
7.5 PM2.5 µg/m³
Good
PM10 9.7 NO₂ 12 O₃ 28
Nagoya
17 PM2.5 µg/m³
Moderate
PM10 21 NO₂ 24 O₃ 37
Sapporo
6.1 PM2.5 µg/m³
Good
PM10 8.4 NO₂ 2.4 O₃ 110
Kōbe Shi
6.8 PM2.5 µg/m³
Good
PM10 9.3 NO₂ 9.4 O₃ 33
Kyoto
6.4 PM2.5 µg/m³
Good
PM10 8.4 NO₂ 12 O₃ 29
Fukuoka City
5.7 PM2.5 µg/m³
Good
PM10 6.8 NO₂ 6.4 O₃ 82
Saitama-shi
37 PM2.5 µg/m³
Unhealthy for Sensitive Groups
PM10 39 NO₂ 40 O₃ 71
Hiroshima City
4.4 PM2.5 µg/m³
Good
PM10 6.6 NO₂ 2 O₃ 32
Sendai
7.3 PM2.5 µg/m³
Good
PM10 7.5 NO₂ 4.8 O₃ 83
Kitakyushu City
4.5 PM2.5 µg/m³
Good
PM10 6 NO₂ 7.4 O₃ 42
Chiba
18 PM2.5 µg/m³
Moderate
PM10 22 NO₂ 29 O₃ 24
Sakai
6.1 PM2.5 µg/m³
Good
PM10 8.4 NO₂ 5.6 O₃ 33
Shizuoka-shi
6.3 PM2.5 µg/m³
Good
PM10 9.6 NO₂ 4 O₃ 34
Kumamoto
2.9 PM2.5 µg/m³
Good
PM10 3.4 NO₂ 2.5 O₃ 68
Ōta-ku
30 PM2.5 µg/m³
Moderate
PM10 36 NO₂ 34 O₃ 38
Edogawa-ku
18 PM2.5 µg/m³
Moderate
PM10 22 NO₂ 29 O₃ 24
Sagamihara-shi
31 PM2.5 µg/m³
Moderate
PM10 33 NO₂ 17 O₃ 92
Okayama
9.3 PM2.5 µg/m³
Good
PM10 13 NO₂ 11 O₃ 51

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

PM2,5 14 (Moderate)

PM10 17 (Good)

O3 49 (Good)

NO2 16 (Good)

SO2 14 (Good)

CO 226 (Good)


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
PM2,5 16
Moderate
13
Moderate
13
Moderate
15
Moderate
16
Moderate
21
Moderate
15
Moderate
15
Moderate
PM10 18
Good
15
Good
16
Good
16
Good
17
Good
23
Moderate
17
Good
19
Good
O3 41
Good
52
Good
64
Good
83
Moderate
81
Moderate
72
Moderate
63
Good
60
Good
NO2 24
Good
18
Good
17
Good
21
Good
20
Good
23
Good
20
Good
20
Good
SO2 15
Good
12
Good
10
Good
14
Good
12
Good
14
Good
13
Good
13
Good
CO 230
Good
228
Good
214
Good
236
Good
192
Good
227
Good
218
Good
226
Good
data source »

Quality of life in Japan

Green and Parks in the City

Japan 65%

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

Pleasure of spending time in the city

Japan 69%

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

Air Pollution

Japan 33%

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

Garbage Disposal

Japan 71%

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

Availability and quality of drinking water

Japan 73%

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

Cleanliness and tidiness

Japan 74%

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

Noise and Light pollution

Japan 44%

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

Water Pollution

Japan 36%

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



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

Frequently asked questions

Is the air safe to breathe in Japan today?
The current average PM2.5 across Japan is about 14 µg/m³, rated “Moderate”. Air quality is good — outdoor activities are fine for everyone.
What is the current PM2.5 level in Japan?
Right now PM2.5 in Japan averages about 14 µg/m³ (“Moderate”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.
Which cities in Japan have the best and worst air quality now?
Saitama-shi currently has the highest PM2.5 (37 µg/m³), while Kumamoto has the cleanest air (3 µg/m³).
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.

☀️ UV Index · 16-day Forecast — Japan

☀️ UV INDEX · 16-DAY FORECASTJapan03681111+7.1UV HIGHtoday, day maxSPF 30-50, hat and sunglasses are a must. Better tostay in the shade 11:00-15:00.⏱ Unprotected fair skin can burn in about 30 min7Wed26.083Thu27.085Fri28.083Sat29.087Sun30.087Mon31.087Tue1.097Wed2.097Thu3.095Fri4.097Sat5.093Sun6.097Mon7.096Tue8.092Wed9.097Thu10.090-2 low3-5 moderate6-7 high8-10 very high11+ extremepollution-alert.com · August 27, 2026

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

🌦️ Weather · 16-day Forecast — Japan

🌦️ WEATHER · 16-DAY FORECASTJapan🌧️29°RainToday · ↑32° ↓21°💨 2 km/h · 💧 55%Tue25.08🌧️32°21°Wed26.08🌧️31°22°Thu27.08🌧️24°19°Fri28.08🌧️26°18°Sat29.08🌧️24°19°Sun30.08🌧️22°19°Mon31.08🌧️23°19°Tue1.09🌧️24°19°Wed2.09☁️29°18°Thu3.09☀️31°18°Fri4.09🌧️25°18°Sat5.09🌧️21°18°Sun6.09🌧️29°18°Mon7.09🌧️21°17°Tue8.09🌧️22°17°Wed9.09🌧️28°19°pollution-alert.com · August 27, 2026

16-day weather forecast for Japan: today around 32°C (rain), lows near 21°C. Daily temperature and conditions, updated every day.