Jiaxing, Zhejiang, China 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
Jiaxing, Zhejiang, China

2021

2022

2023

2024

2025

AQI

Days

Days	2025	2024	2023	2022	2021
Sep. 1	57	65	41		95
Sep. 2	55	76	61	52	88
Sep. 3	58	65	72	37	66
Sep. 4	61	56	44	42	55
Sep. 5	62	48	55	35	85
Sep. 6	63	81	60	101	124
Sep. 7	72	96	69	123	65
Sep. 8	59	71	62	109	52
Sep. 9	58	41	48	59	62
Sep. 10	54	71	61	61	58
Sep. 11	58	34	84	61	41
Sep. 12	58	52	60	61	25
Sep. 13	62	25	54	40	19
Sep. 14	57	42	62	35	45
Sep. 15	61	49	58	29	71
Sep. 16	62	35	51	62	63
Sep. 17	61	30	93	99	80
Sep. 18		40	85	70	78
Sep. 19		42	67	73	83
Sep. 20		42	49	48	77
Sep. 21		40	45	47	64
Sep. 22		43	49	63	83
Sep. 23		53	40	85	87
Sep. 24		66	48	45	72
Sep. 25		121	83	52	64
Sep. 26		57	104	61	54
Sep. 27		54	87	59	73
Sep. 28		74	94	61	107
Sep. 29		63	75	60	95
Sep. 30		59	72	61	52

AQI Trends: Highest and Lowest

Highest AQI recorded on

6th Sep 2021

124AQI

Lowest AQI recorded on

13th Sep 2021

19AQI

Same Day Analysis (17th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 61 of Moderate air quality, showing improvement over 2023, 2022 and 2021 on the same day.

Day & Night AQI Trend: 17th Sep - 18th Sep 2025
Jiaxing, Zhejiang, China

AQI

Day

Night

5 AM17th Sep 2025

6 PM

4 AM18th Sep 2025

Day time

Avg. Highest Time

11AM17th Sep

69AQI

Avg. Lowest Time

6PM17th Sep

60AQI

Night time

Avg. Highest Time

9PM17th Sep

66AQI

Avg. Lowest Time

1AM18th Sep

59AQI

In the last 24 hours,

Jiaxing's AQI reached its highest point of 69 at 11 AM during the Day, while the lowest point, 59, was recorded at 1 AM during the Night between 17th Sep and 18th Sep 2025.

Day & Night AQI Trend : Aug - Sep 2025
Jiaxing, Zhejiang, China

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

29°C26/34°C

30°C26/35°C

29°C25/34°C

30°C25/35°C

31°C27/37°C

29°C24/36°C

28°C24/34°C

29°C25/34°C

29°C25/33°C

29°C26/34°C

28°C24/34°C

27°C24/33°C

27°C25/32°C

28°C24/33°C

28°C25/34°C

29°C25/34°C

29°C25/35°C

25°C23/30°C

25°C23/29°C

25°C22/29°C

28°C24/34°C

27°C25/30°C

27°C25/32°C

28°C25/33°C

29°C25/34°C

28°C24/33°C

5 AM

11 AM

6 PM

11 PM

4 AM

--°C/°C

Day time

Avg. Highest Time

5 PM - 6 PM

59AQI

2 hours / Day

60 hours / Month

Avg. Lowest Time

5 AM - 10 AM

57AQI

6 hours / Day

180 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 5 PM to 6 PM (Avg. 59), while the lowest AQI was between 5 AM to 10 AM (Avg. 57).

Night time

Avg. Highest Time

12 AM - 11 PM

57AQI

10 hours / Day

300 hours / Month

Avg. Lowest Time

12 AM - 11 PM

57AQI

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. 57), while the lowest AQI was between 12 AM to 11 PM (Avg. 57).

2025 Days Vs Air Quality
Jiaxing, Zhejiang, China

2025

13%

69%

179

16%

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

Good

34 Days

Moderate

179 Days

Poor

41 Days

Unhealthy

6 Days

Severe

0 Days

Hazardous

0 Days

Under WHO’s Safe Air Quality Limits: 13%

Health Risk Level:

Extreme

In 2025, 13% of 261 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.

Annual Air Quality Insights
Jiaxing, Zhejiang, China

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.

112AQI

101AQI

86AQI

92AQI

75AQI

57AQI

50AQI

54AQI

60AQI

No. of days

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

202577AQI

179

Highest AQI recorded in

January

112AQI

Lowest AQI recorded in

July

50AQI

202477AQI

209

Highest AQI recorded in

January

127AQI

Lowest AQI recorded in

July

53AQI

202385AQI

203

Highest AQI recorded in

December

122AQI

Lowest AQI recorded in

July

55AQI

202280AQI

207

Highest AQI recorded in

January

111AQI

Lowest AQI recorded in

October

60AQI

202182AQI

235

Highest AQI recorded in

January

115AQI

Lowest AQI recorded in

October

63AQI

202078AQI

184

Highest AQI recorded in

December

113AQI

Lowest AQI recorded in

March

65AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded

2023(Avg.)

85AQI

Least Polluted Year Recorded

2025(Avg.)

77AQI

Jiaxing's annual 2025 AQI (77) shows an average percentage change of -4.1% (improved AQI) compared to previous years: 2020 (78), 2021 (82), 2022 (80), 2023 (85), 2024 (77).


5 AM	60
6 AM	60
7 AM	61
8 AM	60
9 AM	62
10 AM	62
11 AM	69
12 PM	69
1 PM	66
2 PM	61
3 PM	61
4 PM	60
5 PM	62
6 PM	60
7 PM	61
8 PM	59
9 PM	66
10 PM	65
11 PM	64
12 AM	66
1 AM	59
2 AM	60
3 AM	60
4 AM	61

Jiaxing, Zhejiang, China Historical Air Quality Analysis

September Air Quality AnalysisJiaxing, Zhejiang, China

Day & Night AQI Trend: 17th Sep - 18th Sep 2025Jiaxing, Zhejiang, China

Day & Night AQI Trend : Aug - Sep 2025Jiaxing, Zhejiang, China

2025 Days Vs Air Quality Jiaxing, Zhejiang, China

Annual Air Quality InsightsJiaxing, Zhejiang, China

AQI levels in 2025

No. of days

September Air Quality Analysis
Jiaxing, Zhejiang, China

Day & Night AQI Trend: 17th Sep - 18th Sep 2025
Jiaxing, Zhejiang, China

Day & Night AQI Trend : Aug - Sep 2025
Jiaxing, Zhejiang, China

2025 Days Vs Air Quality
Jiaxing, Zhejiang, China

Annual Air Quality Insights
Jiaxing, Zhejiang, China