Maizuru, Kyoto, 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
Maizuru, Kyoto, Japan

2021

2022

2023

2024

2025

AQI

Days

Days	2025	2024	2023	2022	2021
Sep. 1	41	28	22		58
Sep. 2	38	24	25	25	40
Sep. 3	34	29	27	24	27
Sep. 4	31	29	32	21	22
Sep. 5	25	34	25	26	30
Sep. 6	27	43	22	24	28
Sep. 7	32	59	32	35	34
Sep. 8	33	49	25	32	29
Sep. 9	35	28	24		25
Sep. 10	32	24	25	31	28
Sep. 11	28	22	29	39	42
Sep. 12	28	29	26	34	44
Sep. 13	29	30	21	46	32
Sep. 14	32	30	23	46	27
Sep. 15	33	22	26	51	28
Sep. 16		28	42	43	40
Sep. 17		35	32	29	40
Sep. 18		32	22	25	28
Sep. 19		46	39	31	35
Sep. 20		35	38	35	32
Sep. 21		25	23	26	38
Sep. 22		27	29	29	27
Sep. 23		26	26	29	46
Sep. 24		22	32	37	34
Sep. 25		32	37	29	33
Sep. 26		35	39	34	25
Sep. 27		37	41	40	27
Sep. 28		31	38	25	44
Sep. 29		30	35	26	55
Sep. 30		28	42	37	35

AQI Trends: Highest and Lowest

Highest AQI recorded on

7th Sep 2024

59AQI

Lowest AQI recorded on

4th Sep 2022

21AQI

Same Day Analysis (15th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 33 of Good air quality, showing improvement over 2022 on the same day.

Day & Night AQI Trend: 16th Sep - 17th Sep 2025
Maizuru, Kyoto, Japan

AQI

Day

Night

5 AM16th Sep 2025

6 PM

4 AM17th Sep 2025

Day time

Avg. Highest Time

2PM16th Sep

48AQI

Avg. Lowest Time

9AM16th Sep

33AQI

Night time

Avg. Highest Time

10PM16th Sep

37AQI

Avg. Lowest Time

2AM17th Sep

32AQI

In the last 24 hours,

Maizuru's AQI reached its highest point of 48 at 2 PM during the Day, while the lowest point, 32, was recorded at 2 AM during the Night between 16th Sep and 17th Sep 2025.

Day & Night AQI Trend : Aug - Sep 2025
Maizuru, Kyoto, Japan

AugSep

18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 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

Day

Night

26°C22/32°C

27°C23/33°C

27°C23/32°C

26°C22/32°C

27°C23/32°C

27°C23/31°C

27°C24/32°C

27°C24/31°C

25°C23/28°C

25°C23/29°C

26°C23/32°C

27°C23/32°C

27°C23/33°C

28°C24/33°C

27°C23/33°C

26°C23/31°C

24°C23/27°C

24°C22/26°C

24°C21/30°C

26°C22/31°C

25°C23/29°C

25°C22/32°C

24°C22/28°C

25°C23/30°C

25°C24/27°C

26°C23/30°C

26°C22/31°C

5 AM

11 AM

6 PM

11 PM

4 AM

--°C/°C

Day time

Avg. Highest Time

12 PM - 6 PM

43AQI

7 hours / Day

210 hours / Month

Avg. Lowest Time

5 AM - 9 AM

41AQI

5 hours / Day

150 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 12 PM to 6 PM (Avg. 43), while the lowest AQI was between 5 AM to 9 AM (Avg. 41).

Night time

Avg. Highest Time

7 PM

43AQI

1 hours / Day

30 hours / Month

Avg. Lowest Time

12 AM - 4 AM

40AQI

5 hours / Day

150 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 7 PM to 7 PM (Avg. 43), while the lowest AQI was between 12 AM to 4 AM (Avg. 40).

2025 Days Vs Air Quality
Maizuru, Kyoto, Japan

2025

73%

189

26%

0.3%

Total number of days with different AQI categories in last 260 days in 2025 (105 days remaining)

Good

189 Days

Moderate

68 Days

Poor

1 Days

Unhealthy

0 Days

Severe

0 Days

Hazardous

0 Days

Under WHO’s Safe Air Quality Limits: 73%

Health Risk Level:

Low

In 2025, 73% of 260 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
Maizuru, Kyoto, 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.

35AQI

37AQI

46AQI

47AQI

43AQI

45AQI

55AQI

46AQI

32AQI

No. of days

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

202544AQI

189

Highest AQI recorded in

July

55AQI

Lowest AQI recorded in

September

32AQI

202434AQI

346

Highest AQI recorded in

April

43AQI

Lowest AQI recorded in

August

27AQI

202334AQI

332

Highest AQI recorded in

April

48AQI

Lowest AQI recorded in

August

26AQI

202237AQI

262

Highest AQI recorded in

March

47AQI

Lowest AQI recorded in

August

27AQI

202140AQI

296

Highest AQI recorded in

June

48AQI

Lowest AQI recorded in

October

34AQI

202037AQI

214

Highest AQI recorded in

August

56AQI

Lowest AQI recorded in

December

27AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded

2025(Avg.)

44AQI

Least Polluted Year Recorded

2024(Avg.)

34AQI

Maizuru's annual 2025 AQI (44) shows an average percentage change of 21.1% (worsened AQI) compared to previous years: 2020 (37), 2021 (40), 2022 (37), 2023 (34), 2024 (34).


5 AM	34
6 AM	34
7 AM	34
8 AM	33
9 AM	33
10 AM	40
11 AM	42
12 PM	46
1 PM	42
2 PM	48
3 PM	45
4 PM	45
5 PM	36
6 PM	36
7 PM	36
8 PM	32
9 PM	34
10 PM	37
11 PM	32
12 AM	36
1 AM	34
2 AM	32
3 AM	33
4 AM	34

Maizuru, Kyoto, Japan Historical Air Quality Analysis

September Air Quality AnalysisMaizuru, Kyoto, Japan

Day & Night AQI Trend: 16th Sep - 17th Sep 2025Maizuru, Kyoto, Japan

Day & Night AQI Trend : Aug - Sep 2025Maizuru, Kyoto, Japan

2025 Days Vs Air Quality Maizuru, Kyoto, Japan

Annual Air Quality InsightsMaizuru, Kyoto, Japan

AQI levels in 2025

No. of days

September Air Quality Analysis
Maizuru, Kyoto, Japan

Day & Night AQI Trend: 16th Sep - 17th Sep 2025
Maizuru, Kyoto, Japan

Day & Night AQI Trend : Aug - Sep 2025
Maizuru, Kyoto, Japan

2025 Days Vs Air Quality
Maizuru, Kyoto, Japan

Annual Air Quality Insights
Maizuru, Kyoto, Japan