Ikeda, Osaka, Japan Historical Air Quality Analysis

Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

September Air Quality Analysis
Ikeda, Osaka, Japan

2021

2022

2023

2024

2025

AQI

Days

Days	2025	2024	2023	2022	2021
Sep. 1	41	23	22		54
Sep. 2	35	38	30	67	52
Sep. 3	38	34	36	23	22
Sep. 4	27	35	39	24	26
Sep. 5	23	42	21	20	33
Sep. 6	28	49	20	15	30
Sep. 7	35	65	28	35	33
Sep. 8	37	53	30	29	29
Sep. 9	38	37	34		26
Sep. 10	36	17	38	31	39
Sep. 11	30	18	25	39	54
Sep. 12	31	30	23	37	57
Sep. 13	28	24	30	41	40
Sep. 14	40	25	26	50	27
Sep. 15	37	23	25	44	27
Sep. 16	45	30	26	40	38
Sep. 17	52	28	26	29	27
Sep. 18	33	20	29	24	28
Sep. 19	33	25	38	26	30
Sep. 20	38	19	52	28	32
Sep. 21		18	34	26	37
Sep. 22		26	28	26	30
Sep. 23		27	30	16	61
Sep. 24		28	33	34	34
Sep. 25		38	35	39	38
Sep. 26		41	42	47	30
Sep. 27		32	45	45	36
Sep. 28		31	35	34	37
Sep. 29		32	36	30	36
Sep. 30		37	47	40	31

AQI Trends: Highest and Lowest

Highest AQI recorded on

2nd Sep 2022

67AQI

Lowest AQI recorded on

6th Sep 2022

15AQI

Same Day Analysis (20th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 38 of Good air quality, showing improvement over 2023 on the same day.

Day & Night AQI Trend: 20th Sep - 21st Sep 2025
Ikeda, Osaka, Japan

AQI

Day

Night

5 AM20th Sep 2025

6 PM

4 AM21st Sep 2025

Day time

Avg. Highest Time

5AM20th Sep

40AQI

Avg. Lowest Time

1PM20th Sep

20AQI

Night time

Avg. Highest Time

10PM20th Sep

59AQI

Avg. Lowest Time

4AM21st Sep

40AQI

In the last 24 hours,

Ikeda's AQI reached its highest point of 59 at 10 PM during the Night, while the lowest point, 20, was recorded at 1 PM during the Day between 20th Sep and 21st Sep 2025.

Day & Night AQI Trend : Aug - Sep 2025
Ikeda, Osaka, Japan

AugSep

22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st

Day

Night

29°C26/33°C

29°C26/34°C

29°C26/33°C

29°C26/32°C

28°C26/32°C

28°C24/33°C

29°C26/33°C

30°C26/35°C

29°C26/33°C

29°C26/34°C

26°C24/27°C

26°C24/29°C

27°C22/33°C

28°C25/32°C

29°C26/32°C

29°C26/33°C

28°C25/33°C

26°C24/30°C

28°C25/31°C

28°C25/32°C

29°C26/33°C

29°C25/33°C

29°C27/33°C

27°C24/31°C

25°C22/29°C

25°C23/28°C

5 AM

11 AM

6 PM

11 PM

4 AM

--°C/°C

Day time

Avg. Highest Time

1 PM - 6 PM

44AQI

6 hours / Day

180 hours / Month

Avg. Lowest Time

9 AM

38AQI

1 hours / Day

30 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 1 PM to 6 PM (Avg. 44), while the lowest AQI was between 9 AM to 9 AM (Avg. 38).

Night time

Avg. Highest Time

12 AM - 11 PM

41AQI

10 hours / Day

300 hours / Month

Avg. Lowest Time

12 AM - 11 PM

41AQI

10 hours / Day

300 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 41), while the lowest AQI was between 12 AM to 11 PM (Avg. 41).

2025 Days Vs Air Quality
Ikeda, Osaka, Japan

2025

75%

197

25%

Total number of days with different AQI categories in last 264 days in 2025 (101 days remaining)

Good

197 Days

Moderate

66 Days

Poor

0 Days

Unhealthy

0 Days

Severe

0 Days

Hazardous

0 Days

Under WHO’s Safe Air Quality Limits: 75%

Health Risk Level:

Low

In 2025, 75% of 264 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.

Annual Air Quality Insights
Ikeda, Osaka, Japan

AQI levels in 2025

AQI

PM2.5

PM10

SO2

NO2

Sun.Mon.Tue.Wed.Thu.Fri.Sat.

Jan.

Feb.

Mar.

Apr.

May

Jun.

Jul.

Aug.

Sep.

Oct.

Nov.

Dec.

38AQI

37AQI

44AQI

43AQI

40AQI

43AQI

51AQI

49AQI

35AQI

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202543AQI

197

Highest AQI recorded in

July

51AQI

Lowest AQI recorded in

September

35AQI

202436AQI

332

Highest AQI recorded in

April

46AQI

Lowest AQI recorded in

December

29AQI

202338AQI

231

Highest AQI recorded in

April

47AQI

Lowest AQI recorded in

August

26AQI

202238AQI

234

Highest AQI recorded in

May

48AQI

Lowest AQI recorded in

August

22AQI

202135AQI

319

Highest AQI recorded in

June

43AQI

Lowest AQI recorded in

January

29AQI

202031AQI

225

Highest AQI recorded in

August

50AQI

Lowest AQI recorded in

October

24AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded

2025(Avg.)

43AQI

Least Polluted Year Recorded

2020(Avg.)

31AQI

Ikeda's annual 2025 AQI (43) shows an average percentage change of 20.2% (worsened AQI) compared to previous years: 2020 (31), 2021 (35), 2022 (38), 2023 (38), 2024 (36).


5 AM	40
6 AM	39
7 AM	39
8 AM	40
9 AM	30
10 AM	30
11 AM	28
12 PM	22
1 PM	20
2 PM	23
3 PM	29
4 PM	38
5 PM	36
6 PM	51
7 PM	54
8 PM	56
9 PM	54
10 PM	59
11 PM	58
12 AM	58
1 AM	48
2 AM	42
3 AM	42
4 AM	40

Ikeda, Osaka, Japan Historical Air Quality Analysis

September Air Quality AnalysisIkeda, Osaka, Japan

Day & Night AQI Trend: 20th Sep - 21st Sep 2025Ikeda, Osaka, Japan

Day & Night AQI Trend : Aug - Sep 2025Ikeda, Osaka, Japan

2025 Days Vs Air Quality Ikeda, Osaka, Japan

Annual Air Quality InsightsIkeda, Osaka, Japan

AQI levels in 2025

No. of days

September Air Quality Analysis
Ikeda, Osaka, Japan

Day & Night AQI Trend: 20th Sep - 21st Sep 2025
Ikeda, Osaka, Japan

Day & Night AQI Trend : Aug - Sep 2025
Ikeda, Osaka, Japan

2025 Days Vs Air Quality
Ikeda, Osaka, Japan

Annual Air Quality Insights
Ikeda, Osaka, Japan