Yonago, Tottori, 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+

July Air Quality Analysis
Yonago, Tottori, Japan

2021

2022

2023

2024

2025

AQI

Days

Days	2025	2024	2023	2022	2021
Jul. 1	66	24	29	40	29
Jul. 2	65	24	35	46	31
Jul. 3		38	39	36	36
Jul. 4		32	42	27	51
Jul. 5		42	46	28	35
Jul. 6		42	45	32	28
Jul. 7		37	51	38	30
Jul. 8		38	40	64	27
Jul. 9		28	20	46	27
Jul. 10		32	30	48	36
Jul. 11		30	32	44	40
Jul. 12		30	27	29	34
Jul. 13		31	31	38	31
Jul. 14		27	30	51	26
Jul. 15		20	36	56	46
Jul. 16		25	35	54	35
Jul. 17		22	37	56	27
Jul. 18		33	42	68	25
Jul. 19		32	24	27	22
Jul. 20		28	28	37	38
Jul. 21		32	23		60
Jul. 22		27	37	44	55
Jul. 23		44	52	29	54
Jul. 24		32	38	68	49
Jul. 25		39	28		37
Jul. 26		33	36		40
Jul. 27		31	41		48
Jul. 28		34	49		43
Jul. 29		29	51		28
Jul. 30		32	34		33
Jul. 31		35	34		33

AQI Trends: Highest and Lowest

Highest AQI recorded on

18th Jul 2022

68AQI

Lowest AQI recorded on

9th Jul 2023

20AQI

Same Day Analysis (2nd July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 65 of Moderate air quality on the same day.

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025
Yonago, Tottori, Japan

AQI

Day

Night

4 AM2nd Jul 2025

7 PM

3 AM3rd Jul 2025

Day time

Avg. Highest Time

10AM2nd Jul

115AQI

Avg. Lowest Time

7PM2nd Jul

48AQI

Night time

Avg. Highest Time

3AM3rd Jul

58AQI

Avg. Lowest Time

8PM2nd Jul

50AQI

In the last 24 hours,

Yonago's AQI reached its highest point of 115 at 10 AM during the Day, while the lowest point, 48, was recorded at 7 PM during the Day between 2nd Jul and 3rd Jul 2025.

Day & Night AQI Trend : Jun - Jul 2025
Yonago, Tottori, Japan

JunJul

03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd

Day

Night

17°C16/19°C

18°C15/23°C

18°C14/23°C

20°C15/26°C

21°C16/26°C

21°C18/25°C

21°C17/24°C

21°C20/24°C

21°C18/25°C

20°C16/23°C

21°C17/25°C

23°C21/24°C

23°C21/26°C

24°C21/29°C

24°C20/28°C

23°C20/29°C

23°C19/27°C

24°C20/29°C

25°C22/29°C

24°C21/27°C

22°C21/24°C

23°C21/24°C

24°C22/28°C

23°C20/28°C

23°C20/27°C

23°C20/26°C

25°C20/28°C

26°C23/30°C

27°C24/31°C

27°C23/31°C

4 AM

11 AM

7 PM

11 PM

3 AM

0°C0/0°C

Day time

Avg. Highest Time

4 AM - 7 PM

51AQI

16 hours / Day

480 hours / Month

Avg. Lowest Time

4 AM - 7 PM

51AQI

16 hours / Day

480 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 4 AM to 7 PM (Avg. 51), while the lowest AQI was between 4 AM to 7 PM (Avg. 51).

Night time

Avg. Highest Time

12 AM - 11 PM

51AQI

8 hours / Day

240 hours / Month

Avg. Lowest Time

12 AM - 11 PM

51AQI

8 hours / Day

240 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 51), while the lowest AQI was between 12 AM to 11 PM (Avg. 51).

2025 Days Vs Air Quality
Yonago, Tottori, Japan

2025

73%

133

27%

Total number of days with different AQI categories in last 184 days in 2025 (181 days remaining)

Good

133 Days

Moderate

50 Days

Poor

0 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 184 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
Yonago, Tottori, 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.

37AQI

45AQI

44AQI

43AQI

50AQI

66AQI

No. of days

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

202543AQI

133

Highest AQI recorded in

July

66AQI

Lowest AQI recorded in

January

37AQI

202434AQI

232

Highest AQI recorded in

April

45AQI

Lowest AQI recorded in

February

13AQI

202339AQI

294

Highest AQI recorded in

April

55AQI

Lowest AQI recorded in

August

28AQI

202246AQI

233

Highest AQI recorded in

September

73AQI

Lowest AQI recorded in

August

29AQI

202141AQI

272

Highest AQI recorded in

February

48AQI

Lowest AQI recorded in

December

36AQI

202045AQI

176

Highest AQI recorded in

August

67AQI

Lowest AQI recorded in

July

34AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded

2022(Avg.)

46AQI

Least Polluted Year Recorded

2024(Avg.)

34AQI

Yonago's annual 2025 AQI (43) shows an average percentage change of 5.6% (worsened AQI) compared to previous years: 2020 (45), 2021 (41), 2022 (46), 2023 (39), 2024 (34).


4 AM	56
5 AM	58
6 AM	58
7 AM	58
8 AM	58
9 AM	109
10 AM	115
11 AM	97
12 PM	82
1 PM	72
2 PM	65
3 PM	60
4 PM	59
5 PM	53
6 PM	52
7 PM	48
8 PM	50
9 PM	53
10 PM	53
11 PM	53
12 AM	53
1 AM	53
2 AM	56
3 AM	58

Yonago, Tottori, Japan Historical Air Quality Analysis

July Air Quality AnalysisYonago, Tottori, Japan

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025Yonago, Tottori, Japan

Day & Night AQI Trend : Jun - Jul 2025Yonago, Tottori, Japan

2025 Days Vs Air Quality Yonago, Tottori, Japan

Annual Air Quality InsightsYonago, Tottori, Japan

AQI levels in 2025

No. of days

July Air Quality Analysis
Yonago, Tottori, Japan

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025
Yonago, Tottori, Japan

Day & Night AQI Trend : Jun - Jul 2025
Yonago, Tottori, Japan

2025 Days Vs Air Quality
Yonago, Tottori, Japan

Annual Air Quality Insights
Yonago, Tottori, Japan