Magong, Penghu, Taiwan 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
Magong, Penghu, Taiwan

2021

2022

2023

2024

2025

AQI

Days

Days	2025	2024	2023	2022	2021
Sep. 1	47	55	39		55
Sep. 2	47	56	45	66	45
Sep. 3	51	52	50	46	32
Sep. 4	47	48	49	56	31
Sep. 5	50	40	39	60	43
Sep. 6	52	40	44	56	32
Sep. 7	43	27	41	52	37
Sep. 8	40	27	34	59	42
Sep. 9	39	33	31		43
Sep. 10	41	54	38	54	47
Sep. 11	40	72	45	56	43
Sep. 12	45	60	44	65	41
Sep. 13	42	40	45	71	36
Sep. 14	46	33	39	83	33
Sep. 15	45	41	47	89	38
Sep. 16	44	40	51	72	81
Sep. 17	48	42	38	55	63
Sep. 18		49	34	58	60
Sep. 19		40	43	86	49
Sep. 20		29	43	68	48
Sep. 21		30	48	53	30
Sep. 22		27	40	49	31
Sep. 23		33	36	53	38
Sep. 24		26	37	60	48
Sep. 25		30	38	53	63
Sep. 26		40	45	50	67
Sep. 27		47	51	45	55
Sep. 28		45	50	42	50
Sep. 29		39	54	50	55
Sep. 30		43	50	57	50

AQI Trends: Highest and Lowest

Highest AQI recorded on

15th Sep 2022

89AQI

Lowest AQI recorded on

24th Sep 2024

26AQI

Same Day Analysis (17th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 48 of Good air quality, showing improvement over 2022 and 2021 on the same day.

Day & Night AQI Trend: 17th Sep - 18th Sep 2025
Magong, Penghu, Taiwan

AQI

Day

Night

5 AM17th Sep 2025

6 PM

4 AM18th Sep 2025

Day time

Avg. Highest Time

3PM17th Sep

57AQI

Avg. Lowest Time

5PM17th Sep

35AQI

Night time

Avg. Highest Time

8PM17th Sep

53AQI

Avg. Lowest Time

11PM17th Sep

42AQI

In the last 24 hours,

Magong's AQI reached its highest point of 57 at 3 PM during the Day, while the lowest point, 35, was recorded at 5 PM during the Day between 17th Sep and 18th Sep 2025.

Day & Night AQI Trend : Aug - Sep 2025
Magong, Penghu, Taiwan

AugSep

19th - 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 - 18th18th

Day

Night

28°C27/29°C

27°C26/28°C

28°C28/29°C

29°C28/30°C

29°C28/29°C

28°C28/29°C

28°C27/28°C

28°C28/28°C

28°C28/29°C

28°C27/28°C

28°C28/28°C

28°C28/29°C

28°C28/28°C

29°C28/29°C

28°C28/29°C

29°C28/29°C

28°C27/29°C

28°C28/29°C

29°C28/29°C

28°C28/29°C

29°C28/29°C

5 AM

11 AM

6 PM

11 PM

4 AM

--°C/°C

Day time

Avg. Highest Time

5 AM - 7 AM

49AQI

3 hours / Day

90 hours / Month

Avg. Lowest Time

4 PM - 5 PM

38AQI

2 hours / Day

60 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 5 AM to 7 AM (Avg. 49), while the lowest AQI was between 4 PM to 5 PM (Avg. 38).

Night time

Avg. Highest Time

1 AM - 4 AM

50AQI

4 hours / Day

120 hours / Month

Avg. Lowest Time

7 PM

44AQI

1 hours / Day

30 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 1 AM to 4 AM (Avg. 50), while the lowest AQI was between 7 PM to 7 PM (Avg. 44).

2025 Days Vs Air Quality
Magong, Penghu, Taiwan

2025

54%

141

46%

119

Total number of days with different AQI categories in last 261 days in 2025 (104 days remaining)

Good

141 Days

Moderate

119 Days

Poor

0 Days

Unhealthy

0 Days

Severe

0 Days

Hazardous

0 Days

Under WHO’s Safe Air Quality Limits: 54%

Health Risk Level:

Considerable

In 2025, 54% of 261 days were within WHO’s safe air quality limits, and 46% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.

Annual Air Quality Insights
Magong, Penghu, Taiwan

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.

63AQI

60AQI

54AQI

59AQI

50AQI

34AQI

43AQI

45AQI

No. of days

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

202550AQI

141

119

Highest AQI recorded in

January

63AQI

Lowest AQI recorded in

June

34AQI

202448AQI

220

145

Highest AQI recorded in

January

61AQI

Lowest AQI recorded in

July

35AQI

202351AQI

169

194

Highest AQI recorded in

April

63AQI

Lowest AQI recorded in

July

34AQI

202249AQI

173

146

Highest AQI recorded in

March

60AQI

Lowest AQI recorded in

July

30AQI

202151AQI

187

172

Highest AQI recorded in

February

71AQI

Lowest AQI recorded in

June

36AQI

202050AQI

132

134

Highest AQI recorded in

October

63AQI

Lowest AQI recorded in

July

33AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded

2021(Avg.)

51AQI

Least Polluted Year Recorded

2024(Avg.)

48AQI

Magong's annual 2025 AQI (50) shows an average percentage change of 1.1% (worsened AQI) compared to previous years: 2020 (50), 2021 (51), 2022 (49), 2023 (51), 2024 (48).


5 AM	48
6 AM	48
7 AM	48
8 AM	49
9 AM	46
10 AM	41
11 AM	38
12 PM	47
1 PM	54
2 PM	45
3 PM	57
4 PM	48
5 PM	35
6 PM	45
7 PM	48
8 PM	53
9 PM	48
10 PM	45
11 PM	42
12 AM	47
1 AM	51
2 AM	51
3 AM	51
4 AM	52

Magong, Penghu, Taiwan Historical Air Quality Analysis

September Air Quality AnalysisMagong, Penghu, Taiwan

Day & Night AQI Trend: 17th Sep - 18th Sep 2025Magong, Penghu, Taiwan

Day & Night AQI Trend : Aug - Sep 2025Magong, Penghu, Taiwan

2025 Days Vs Air Quality Magong, Penghu, Taiwan

Annual Air Quality InsightsMagong, Penghu, Taiwan

AQI levels in 2025

No. of days

September Air Quality Analysis
Magong, Penghu, Taiwan

Day & Night AQI Trend: 17th Sep - 18th Sep 2025
Magong, Penghu, Taiwan

Day & Night AQI Trend : Aug - Sep 2025
Magong, Penghu, Taiwan

2025 Days Vs Air Quality
Magong, Penghu, Taiwan

Annual Air Quality Insights
Magong, Penghu, Taiwan