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Live

Yamaguchi Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in Yamaguchi

Last Updated: 2025-07-18 01:54:08 PM (Local Time)

location image
Live AQI
21
Air Quality is
Good
pm10 :  11 µg/m³
PM2.5 :  4 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi good level.webp in Yamaguchi
light rain

26 °C

Light rain
Humidity
Humidity89 %
Wind Speed
Wind Speed29 km/h
UV Index
UV Index1
Last Updated: 2025-07-18 01:54:08 PM (Local Time)
AQI LogoMap

Yamaguchi

Major Air Pollutants

Yamaguchi

PM2.5's Icon

Particulate Matter(PM2.5)

4µg/m³

PM10's Icon

Particulate Matter(PM10)

11µg/m³

CO's Icon

Carbon Monoxide(CO)

158ppb

SO2's Icon

Sulfur Dioxide(SO2)

1ppb

NO2's Icon

Nitrogen Dioxide(NO2)

2ppb

O3's Icon

Ozone(O3)

12ppb

Trending in Japan

Is Poor Air Quality in Gyms Holding Back Your Fitness Goals?

Is Poor Air Quality in Gyms Holding Back Your Fitness Goals?

City Climate Change Severity Analysis is NOW LIVE on AQI.in!📢

City Climate Change Severity Analysis is NOW LIVE on AQI.in!📢

AQI Graph

Historical Air Quality Data

Yamaguchi

24 Hours
AQI
Yamaguchi
AQI
.
17-07-2025Time18-07-2025
TimeYamaguchi
02 PM37
03 PM33
04 PM29
05 PM28
06 PM26
07 PM22
08 PM31
09 PM44
10 PM44
11 PM44
12 AM44
01 AM50
02 AM55
03 AM55
04 AM54
05 AM54
06 AM53
07 AM54
08 AM53
09 AM25
10 AM19
11 AM21
12 PM18
01 PM21
18
Min.at 12:09 PM on 18th Jul
55
Max.at 2:09 AM on 18th Jul

Want air quality data?

AQI Logo

Download 2024 Annual Data

World Air Quality Report

Globe

AQI Trends - Annual Air Quality Changes

Yamaguchi, Yamaguchi, Japan

AQI
Year
.
AQI
AQI AQI
Mar 202036
Apr 202041
May 202037
Jun 202043
Jul 202027
Aug 202045
Sep 202027
Oct 202030
Nov 202034
Dec 202031
Jan 202132
Feb 202137
Mar 202134
Apr 202135
May 202143
Jun 202145
Jul 202133
Aug 202131
Sep 202134
Oct 202132
Nov 202137
Dec 202134
Jan 202235
Feb 202237
Mar 202244
Apr 202243
May 202248
Jun 202242
Jul 202238
Aug 202251
Sep 202230
Oct 202232
Nov 202237
Dec 202231
Jan 202338
Feb 202334
Mar 202345
Apr 202348
May 202343
Jun 202343
Jul 202331
Aug 202329
Sep 202335
Oct 202336
Nov 202339
Dec 202334
Jan 202430
Feb 202434
Mar 202441
Apr 202445
May 202442
Jun 202438
Jul 202428
Aug 202431
Sep 202433
Oct 202429
Nov 202434
Dec 202432
Jan 202539
Feb 202538
Mar 202548
Apr 202546
May 202543
Jun 202547
Jul 202563

Annual AQI Trends

2020
34AQI
2021
36AQI
6%
Rise
2022
38AQI
6%
Rise
2023
38AQI
0%
No Change
2024
35AQI
-8%
Fall
2025
45AQI
29%
Rise
Overall Annual Percentage (%) change of AQI in (2020 to 2025)
6%
Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedJuly, 202563AQI
Least PollutedSeptember, 202027AQI

* This data analysis is from year 2020 - 2025

Yamaguchi's Locations

Real-time Air Pollution Level

Location
Status
AQI
PM2.5(µg/m³)
PM10(µg/m³)
Temp.(°C)
Humi.(%)
Nakagawaracho
Good
21
4
11
26
90

Japan's Metro Cities

Air Quality Index

Aomori City AQI

Aomori

35

temp.28°C
hum.74%
Higashi Hiroshima City AQI

Higashi Hiroshima

24

temp.26°C
hum.84%
Higashi Osaka City AQI

Higashi Osaka

29

temp.32°C
hum.56%
Kyoto City AQI

Kyoto

38

temp.33°C
hum.49%
Saitama City AQI

Saitama

26

temp.32°C
hum.59%
Sendai City AQI

Sendai

45

temp.25°C
hum.79%
Tokyo City AQI

Tokyo

30

temp.32°C
hum.59%
Yokohama City AQI

Yokohama

30

temp.30°C
hum.65%

Air Quality Calendar 2025

Yamaguchi

2025
AQI
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
29 Dec
-
30 Dec
-
31 Dec
-
1 Jan
30
2 Jan
37
3 Jan
32
4 Jan
32
5 Jan
28
6 Jan
42
7 Jan
30
8 Jan
34
9 Jan
28
10 Jan
28
11 Jan
28
12 Jan
30
13 Jan
39
14 Jan
44
15 Jan
37
16 Jan
36
17 Jan
36
18 Jan
33
19 Jan
43
20 Jan
42
21 Jan
48
22 Jan
60
23 Jan
67
24 Jan
61
25 Jan
44
26 Jan
39
27 Jan
34
28 Jan
35
29 Jan
31
30 Jan
40
31 Jan
48
1 Feb
45
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
26 Jan
39
27 Jan
34
28 Jan
35
29 Jan
31
30 Jan
40
31 Jan
48
1 Feb
45
2 Feb
34
3 Feb
45
4 Feb
32
5 Feb
39
6 Feb
31
7 Feb
35
8 Feb
30
9 Feb
29
10 Feb
30
11 Feb
38
12 Feb
36
13 Feb
31
14 Feb
40
15 Feb
31
16 Feb
40
17 Feb
39
18 Feb
34
19 Feb
35
20 Feb
31
21 Feb
34
22 Feb
38
23 Feb
37
24 Feb
39
25 Feb
36
26 Feb
48
27 Feb
59
28 Feb
62
1 Mar
65
March
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
23 Feb
37
24 Feb
39
25 Feb
36
26 Feb
48
27 Feb
59
28 Feb
62
1 Mar
65
2 Mar
53
3 Mar
42
4 Mar
35
5 Mar
32
6 Mar
34
7 Mar
35
8 Mar
37
9 Mar
40
10 Mar
40
11 Mar
43
12 Mar
49
13 Mar
50
14 Mar
39
15 Mar
33
16 Mar
21
17 Mar
35
18 Mar
36
19 Mar
44
20 Mar
51
21 Mar
59
22 Mar
68
23 Mar
71
24 Mar
62
25 Mar
71
26 Mar
75
27 Mar
60
28 Mar
59
29 Mar
52
30 Mar
44
31 Mar
42
1 Apr
44
2 Apr
37
3 Apr
28
4 Apr
36
5 Apr
42
April
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
30 Mar
44
31 Mar
42
1 Apr
44
2 Apr
37
3 Apr
28
4 Apr
36
5 Apr
42
6 Apr
45
7 Apr
43
8 Apr
43
9 Apr
58
10 Apr
54
11 Apr
57
12 Apr
55
13 Apr
50
14 Apr
46
15 Apr
34
16 Apr
51
17 Apr
48
18 Apr
56
19 Apr
57
20 Apr
41
21 Apr
40
22 Apr
37
23 Apr
23
24 Apr
38
25 Apr
62
26 Apr
52
27 Apr
58
28 Apr
48
29 Apr
50
30 Apr
53
1 May
49
2 May
42
3 May
47
May
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
27 Apr
58
28 Apr
48
29 Apr
50
30 Apr
53
1 May
49
2 May
42
3 May
47
4 May
41
5 May
42
6 May
32
7 May
35
8 May
36
9 May
32
10 May
35
11 May
44
12 May
51
13 May
56
14 May
60
15 May
55
16 May
52
17 May
39
18 May
52
19 May
58
20 May
58
21 May
40
22 May
36
23 May
44
24 May
29
25 May
30
26 May
31
27 May
39
28 May
42
29 May
40
30 May
41
31 May
36
June
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jun
44
2 Jun
51
3 Jun
30
4 Jun
44
5 Jun
44
6 Jun
53
7 Jun
61
8 Jun
61
9 Jun
55
10 Jun
33
11 Jun
44
12 Jun
49
13 Jun
47
14 Jun
33
15 Jun
34
16 Jun
32
17 Jun
35
18 Jun
45
19 Jun
46
20 Jun
53
21 Jun
59
22 Jun
67
23 Jun
45
24 Jun
45
25 Jun
42
26 Jun
50
27 Jun
54
28 Jun
47
29 Jun
50
30 Jun
56
1 Jul
65
2 Jul
71
3 Jul
73
4 Jul
78
5 Jul
72
July
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
29 Jun
50
30 Jun
56
1 Jul
65
2 Jul
71
3 Jul
73
4 Jul
78
5 Jul
72
6 Jul
58
7 Jul
59
8 Jul
63
9 Jul
75
10 Jul
79
11 Jul
64
12 Jul
57
13 Jul
47
14 Jul
40
15 Jul
53
16 Jul
57
17 Jul
-
18 Jul
-
19 Jul
-
20 Jul
-
21 Jul
-
22 Jul
-
23 Jul
-
24 Jul
-
25 Jul
-
26 Jul
-
27 Jul
-
28 Jul
-
29 Jul
-
30 Jul
-
31 Jul
-
1 Aug
-
2 Aug
-
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

Health Advice For People Living In

Yamaguchi

0Cigarettes per day

Weekly 0 Cigarettes
Monthly 0 Cigarettes

Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.

Source:

Berkeley Earth

Solutions for Current AQI

  • Air Purifier
    Air PurifierTurn Off
  • Car Filter
    Car FilterAdvisable
  • N95 Mask
    N95 MaskAdvisable
  • Stay Indoor
    Stay IndoorAdvisable

As per the current AQI, turn off the air purifier.

Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Yamaguchi

  • asthma due to air pollution in YamaguchiAsthma
  • heart due to air pollution in YamaguchiHeart Issues
  • allergy due to air pollution in YamaguchiAllergies
  • sinus due to air pollution in YamaguchiSinus
  • flu due to air pollution in YamaguchiCold/Flu
  • copd due to air pollution in YamaguchiChronic (COPD)
asthma due to air pollution in Yamaguchi

Low Chances of Asthma

Asthma

Risk of Asthma symptoms is Low when AQI is Good (0-50)

Mild symptoms such as slight wheezing, occasional cough, and minor shortness of breath

Do's :

  • Keep track of air quality to plan outdoor activities safely.

  • Drink water to keep airways moist and reduce irritation.

  • Include non-allergenic fruits and vegetables that support overall lung health, like apples, pears, and spinach.

Don'ts :

  • Skip medications that is prescribed by your doctor.

  • Engage in outdoor activities in early morning during high pollen hours.

Most Polluted Cities 2025

Japan

Analyze the real-time most air polluted cities in the country.

Most Polluted Cities Live Ranking 2025
World's Most PollutedCity Rankings (2024)
World's Most PollutedCountry Rankings(2024)
RankCityAQIAQI Status

Standard Value

Follow

1.

Hanamaki Onsen, Japan

57
Moderate
4xabove Standard

2.

Shimotsuke, Japan

55
Moderate
4xabove Standard

3.

Kamaishi, Japan

53
Moderate
4xabove Standard

4.

Rifu, Japan

51
Moderate
3xabove Standard

5.

Tateishi, Japan

51
Moderate
3xabove Standard

6.

Shikama, Japan

51
Moderate
3xabove Standard

7.

Oshu, Japan

51
Moderate
3xabove Standard

8.

Kuji, Japan

51
Moderate
3xabove Standard

9.

Kurihara, Japan

51
Moderate
3xabove Standard

10.

Rikuzen Takata, Japan

50
Good
3xabove Standard

Last Updated: 18 Jul 2025, 05:08 AM

AQI City Rankings

Air Quality Solutions For Yamaguchi

Explore the solutions of air quality monitoring & clean air.

Here are some applications that you can go through to find out the solutions.

Air Quality Monitor

Air Quality Monitor

Monitor the air quality
Air Quality Sensors

Air Quality Sensors

Sensors to measure the air quality
Fresh Air Machine

Fresh Air Machine

Clean the air you breathe
Car Cabin Filter

Car Cabin Filter

Purify the air in your car
N95 Mask

N95 Mask

Shield yourself from pollution
air quality solutions for offices for Yamaguchi

Air Quality Solution For Offices

A complete solution for air quality monitoring, data analysis, and fresh air solutions in workplaces prioritizing employee's health and productivity.

air quality solutions for smart-city for Yamaguchi

Air Quality Solutions For Smart City

Prana Air smart city project provides air quality monitors, drones, outdoor air purifiers, and data dashboards solution to improve air quality.

air quality solutions for institutes for Yamaguchi

Air Quality Solutions for Schools | Institutes

Prana Air provides the air quality solutions for schools by air monitoring & fresh air machine that help the students to breather clean air.

air quality solutions for hotels for Yamaguchi

Air Quality Solutions For Hotels

Prana Air air quality solutions are suited for hotel businesses. The occupancy of hotels is the main reasons for bad air quality.

air quality solutions for restaurants for Yamaguchi

Air Quality Solutions for Restaurants

Prana Air has the air quality solutions for restaurant, cafes, and gives you the power to know what your customers and staff breathe.

air quality solutions for rmc-plants for Yamaguchi

Air Quality Solutions for RMC Plants

Prana Air provides air quality monitoring solutions for RMC plants. Improve compliance, protect workers and community, and reduce emissions.

air quality solutions for fitness-center for Yamaguchi

Air Quality Solutions for Fitness Center

Prana Air provides the air quality solutions of pollution monitoring and fresh air for fitness center - gym.

air quality solutions for parking-lot for Yamaguchi

Air Quality Solutions for Parking Lot

A complete solution for air monitoring, data analysis, and fresh air solutions for enclosed car parking areas and car lots.

air quality solutions for retail-stores for Yamaguchi

Air Quality Solutions for Retail Stores

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets.

air quality solutions for airport for Yamaguchi

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets

Prana Air provides the air quality solutions for airport. Gathering of many passengers is the main reasons of bad air quality in airport.

air quality solutions for construction-sites for Yamaguchi

Air Quality Solutions For Construction Sites

Prana Air offers air quality monitoring solutions for construction sites with data cloud storage, web-dashboard, mobile apps, TV display.

air quality solutions for hospitals for Yamaguchi

Air Quality Solutions For Hospitals

Prana Air provides air quality monitoring and fresh air solutions for hospitals to ensure clean and healthy indoor air.

air quality solutions for bathroom for Yamaguchi

Air Quality Solutions For Washroom | Bathroom

Improve washroom and bathroom air quality with Prana Air air quality monitoring devices and fresh air machine. Breathe easy and stay healthy.

air quality solutions for banks for Yamaguchi

Air Quality Solutions for Banks

Prana Air provides air quality solutions of pollution monitoring and fresh air for banks and financial institutions.

air quality solutions for cinema for Yamaguchi

Air Quality Solutions for Cinema

Air quality solutions for cinema halls or theatres will help the customers to get the good experience, comfort and breathe clean air.

air quality solutions for real-estates for Yamaguchi

Air Quality Solutions For Real Estates

Prana Air provides the air quality solutions of pollution monitoring and fresh air for real estates - residential and commercial.

Yamaguchi's AQI Data Analytics Solutions

Air quality data monitoring platforms

Mobile AppMobile App
Smart TV AppSmart TV App
Web DashboardWeb Dashboard
APIAPI
WidgetsWidgets
aqi air quality app for Yamaguchi
Mobile App

Empower Your Decisions with Reliable Data

Get it onApp Store
Get it onGoogle Play
Your area’s real-time data with detailed parameters.

Your area’s real-time data with detailed parameters.

Personalized health advice as per current AQI.

Personalized health advice as per current AQI.

Analytical data to identify trends and conditions.

Analytical data to identify trends and conditions.

Connect and control your air quality devices.

Connect and control your air quality devices.

Air Quality FAQs

at Yamaguchi

Frequently Asked Questions About Air Quality

What is the current AQI level in Yamaguchi?

The current real-time AQI level in Yamaguchi is 21 (Good) due to recent rainfall by 1.55mm/hr. This was last updated 2025-07-18 01:54:08 PM (Local Time).

When was the best AQI level in Yamaguchi in the last 24 hours?

The best AQI level was 18 (Good) at 12:09 PM (Local Time) during the last 24 hours.

When was the worst AQI level in Yamaguchi in the last 24 hours?

The worst AQI level was 55 (Moderate) at 2:09 AM (Local Time) during the last 24 hours.

What is the current trend of AQI levels in Yamaguchi during last 24 hours?

The AQI levels in Yamaguchi have been fluctuating throughout the last 24 hours. The levels have increased by highest 55 at 2:09 AM (Local Time), lowest 18 at 12:09 PM (Local Time).

What actions are recommended as per the current AQI level in Yamaguchi?

The air quality is satisfactory, and air pollution poses little or no risk. No special precautions are needed; enjoy outdoor activities freely.

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Read the latest news

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Prana Sense

Air Quality Monitor

Air Quality Index depicts the extent of air pollution at a particular location.

Prana Sense Air Quality MonitorPrana Sense Air Quality Monitor
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Pocket PM

Air Quality Monitor

Know the air quality around you wherever you are with the Pocket monitor to get instant air quality insights.

Pocket PM Air Quality MonitorPocket PM Air Quality Monitor
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Cair +

Indoor Air Quality Monitor

Track indoor air quality with advanced connectivity and portability for real-time air quality data.

Cair + Indoor Air Quality MonitorCair + Indoor Air Quality Monitor