Kamigoto, Nagasaki, 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
Kamigoto, Nagasaki, Japan

2021

2022

2023

2024

2025

AQI

Days

Days	2025	2024	2023	2022	2021
Sep. 1	34	31	24		37
Sep. 2	32	32	31	25	34
Sep. 3	36	44	44	18	30
Sep. 4	31	49	36	27	28
Sep. 5	32	64	38	41	31
Sep. 6	31	82	38	42	35
Sep. 7	34	74	40	50	23
Sep. 8	30	71	32	44	32
Sep. 9	27	66	31	43	31
Sep. 10	27	30	36	38	26
Sep. 11	32	22	59	54	30
Sep. 12	29	25	68	53	24
Sep. 13	33	47	42	43	27
Sep. 14	30	46	15	46	31
Sep. 15	32	22	16	41	32
Sep. 16	30	26	15	34	38
Sep. 17		31	12	34	44
Sep. 18		39	24	31	33
Sep. 19		25	29	48	34
Sep. 20		31	42	38	31
Sep. 21		30	34	30	31
Sep. 22		24	27	45	50
Sep. 23		30	33	47	60
Sep. 24		34	36	41	35
Sep. 25		30	36	46	44
Sep. 26		44	30	59	52
Sep. 27		35	40	37	44
Sep. 28		39	49	35	40
Sep. 29		38	47	33	38
Sep. 30		43	49	29	35

AQI Trends: Highest and Lowest

Highest AQI recorded on

6th Sep 2024

82AQI

Lowest AQI recorded on

17th Sep 2023

12AQI

Same Day Analysis (16th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 30 of Good air quality, showing improvement over 2022 and 2021 on the same day.

Day & Night AQI Trend: 16th Sep - 17th Sep 2025
Kamigoto, Nagasaki, Japan

AQI

Day

Night

6 AM16th Sep 2025

6 PM

5 AM17th Sep 2025

Day time

Avg. Highest Time

10AM16th Sep

41AQI

Avg. Lowest Time

6PM16th Sep

22AQI

Night time

Avg. Highest Time

5AM17th Sep

37AQI

Avg. Lowest Time

7PM16th Sep

20AQI

In the last 24 hours,

Kamigoto's AQI reached its highest point of 41 at 10 AM during the Day, while the lowest point, 20, was recorded at 7 PM during the Night between 16th Sep and 17th Sep 2025.

Day & Night AQI Trend : Aug - Sep 2025
Kamigoto, Nagasaki, 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

28°C27/29°C

28°C28/29°C

28°C28/28°C

28°C27/29°C

29°C28/29°C

28°C28/29°C

29°C28/30°C

29°C28/29°C

28°C28/29°C

29°C28/30°C

29°C28/29°C

28°C28/29°C

28°C27/29°C

28°C28/29°C

28°C27/29°C

29°C28/30°C

29°C27/29°C

28°C27/29°C

28°C27/28°C

28°C28/29°C

29°C28/29°C

6 AM

12 PM

6 PM

12 AM

5 AM

--°C/°C

Day time

Avg. Highest Time

6 AM - 8 AM

39AQI

3 hours / Day

90 hours / Month

Avg. Lowest Time

9 AM

31AQI

1 hours / Day

30 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 6 AM to 8 AM (Avg. 39), while the lowest AQI was between 9 AM to 9 AM (Avg. 31).

Night time

Avg. Highest Time

2 AM - 5 AM

40AQI

4 hours / Day

120 hours / Month

Avg. Lowest Time

7 PM - 11 PM

35AQI

5 hours / Day

150 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 2 AM to 5 AM (Avg. 40), while the lowest AQI was between 7 PM to 11 PM (Avg. 35).

2025 Days Vs Air Quality
Kamigoto, Nagasaki, Japan

2025

72%

187

28%

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

Good

187 Days

Moderate

72 Days

Poor

0 Days

Unhealthy

0 Days

Severe

0 Days

Hazardous

0 Days

Under WHO’s Safe Air Quality Limits: 72%

Health Risk Level:

Low

In 2025, 72% 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
Kamigoto, Nagasaki, 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.

49AQI

43AQI

51AQI

49AQI

48AQI

42AQI

45AQI

43AQI

31AQI

No. of days

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

202545AQI

187

Highest AQI recorded in

March

51AQI

Lowest AQI recorded in

September

31AQI

202440AQI

312

Highest AQI recorded in

April

52AQI

Lowest AQI recorded in

July

23AQI

202342AQI

281

Highest AQI recorded in

March

53AQI

Lowest AQI recorded in

September

35AQI

202241AQI

262

Highest AQI recorded in

March

48AQI

Lowest AQI recorded in

June

35AQI

202141AQI

263

Highest AQI recorded in

May

50AQI

Lowest AQI recorded in

August

33AQI

202042AQI

133

Highest AQI recorded in

August

60AQI

Lowest AQI recorded in

July

31AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded

2025(Avg.)

45AQI

Least Polluted Year Recorded

2024(Avg.)

40AQI

Kamigoto's annual 2025 AQI (45) shows an average percentage change of 10.03% (worsened AQI) compared to previous years: 2020 (42), 2021 (41), 2022 (41), 2023 (42), 2024 (40).


6 AM	32
7 AM	33
8 AM	32
9 AM	38
10 AM	41
11 AM	36
12 PM	28
1 PM	23
2 PM	25
3 PM	22
4 PM	22
5 PM	22
6 PM	22
7 PM	20
8 PM	25
9 PM	29
10 PM	26
11 PM	28
12 AM	26
1 AM	33
2 AM	36
3 AM	36
4 AM	36
5 AM	37

Kamigoto, Nagasaki, Japan Historical Air Quality Analysis

September Air Quality AnalysisKamigoto, Nagasaki, Japan

Day & Night AQI Trend: 16th Sep - 17th Sep 2025Kamigoto, Nagasaki, Japan

Day & Night AQI Trend : Aug - Sep 2025Kamigoto, Nagasaki, Japan

2025 Days Vs Air Quality Kamigoto, Nagasaki, Japan

Annual Air Quality InsightsKamigoto, Nagasaki, Japan

AQI levels in 2025

No. of days

September Air Quality Analysis
Kamigoto, Nagasaki, Japan

Day & Night AQI Trend: 16th Sep - 17th Sep 2025
Kamigoto, Nagasaki, Japan

Day & Night AQI Trend : Aug - Sep 2025
Kamigoto, Nagasaki, Japan

2025 Days Vs Air Quality
Kamigoto, Nagasaki, Japan

Annual Air Quality Insights
Kamigoto, Nagasaki, Japan