Johannesburg, Gauteng, South Africa Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Johannesburg, Gauteng, South Africa
AQI Trends: Highest and Lowest
Same Day Analysis (5th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks the most lowest AQI at 57 of Moderate air quality, showing improvement over 2024, 2023, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 5th Oct - 6th Oct 2025
Johannesburg, Gauteng, South Africa
6 AM5th Oct 2025
6 PM
5 AM6th Oct 2025
60AQI
49AQI
67AQI
52AQI
In the last 24 hours,
Johannesburg's AQI reached its highest point of 67 at 11 PM during the Night, while the lowest point, 49, was recorded at 6 AM during the Day between 5th Oct and 6th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Johannesburg, Gauteng, South Africa
21°C16/26°C
19°C13/24°C
21°C15/26°C
20°C16/26°C
20°C15/26°C
21°C16/27°C
23°C18/28°C
20°C15/26°C
21°C17/26°C
20°C15/26°C
21°C16/28°C
18°C10/26°C
20°C13/27°C
21°C15/28°C
20°C14/26°C
22°C16/27°C
22°C17/28°C
24°C19/29°C
20°C16/24°C
15°C12/19°C
19°C12/25°C
19°C15/23°C
19°C15/26°C
18°C14/23°C
17°C11/23°C
17°C12/23°C
21°C14/28°C
21°C16/26°C
18°C12/23°C
20°C13/26°C
--°C/°C
65AQI
59AQI
67AQI
66AQI
2025 Days Vs Air Quality
Johannesburg, Gauteng, South Africa
0.3%
1
97%
269
3%
8
Total number of days with different AQI categories in last 279 days in 2025 (86 days remaining)
Under WHO’s Safe Air Quality Limits: 0.36%
Health Risk Level:
Extreme
In 2025, 0.36% of 279 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
Johannesburg, Gauteng, South Africa
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
89AQI
89AQI
86AQI
85AQI
84AQI
88AQI
86AQI
89AQI
88AQI
87AQI
87AQI
87AQI
88AQI
86AQI
85AQI
86AQI
85AQI
85AQI
86AQI
84AQI
83AQI
83AQI
82AQI
83AQI
83AQI
83AQI
81AQI
84AQI
83AQI
83AQI
83AQI
83AQI
85AQI
84AQI
87AQI
86AQI
88AQI
90AQI
92AQI
89AQI
89AQI
88AQI
89AQI
79AQI
67AQI
67AQI
65AQI
63AQI
62AQI
60AQI
59AQI
58AQI
58AQI
58AQI
59AQI
58AQI
60AQI
59AQI
57AQI
59AQI
59AQI
59AQI
57AQI
53AQI
52AQI
52AQI
53AQI
53AQI
55AQI
56AQI
52AQI
59AQI
69AQI
69AQI
70AQI
73AQI
72AQI
77AQI
72AQI
76AQI
78AQI
78AQI
80AQI
82AQI
83AQI
82AQI
81AQI
78AQI
77AQI
78AQI
76AQI
77AQI
76AQI
75AQI
73AQI
75AQI
73AQI
74AQI
73AQI
74AQI
74AQI
76AQI
75AQI
74AQI
74AQI
76AQI
72AQI
74AQI
78AQI
75AQI
75AQI
75AQI
74AQI
73AQI
71AQI
73AQI
73AQI
71AQI
72AQI
75AQI
70AQI
64AQI
70AQI
72AQI
76AQI
81AQI
83AQI
85AQI
85AQI
87AQI
80AQI
75AQI
86AQI
82AQI
80AQI
83AQI
85AQI
84AQI
84AQI
82AQI
74AQI
71AQI
73AQI
78AQI
79AQI
85AQI
84AQI
88AQI
89AQI
89AQI
90AQI
94AQI
89AQI
93AQI
88AQI
87AQI
87AQI
95AQI
88AQI
81AQI
73AQI
73AQI
84AQI
92AQI
105AQI
92AQI
86AQI
87AQI
88AQI
91AQI
90AQI
90AQI
96AQI
83AQI
84AQI
82AQI
83AQI
73AQI
79AQI
81AQI
84AQI
82AQI
89AQI
87AQI
79AQI
88AQI
82AQI
79AQI
82AQI
85AQI
89AQI
105AQI
106AQI
95AQI
84AQI
82AQI
82AQI
94AQI
96AQI
88AQI
73AQI
65AQI
76AQI
67AQI
74AQI
70AQI
65AQI
65AQI
58AQI
61AQI
69AQI
69AQI
60AQI
69AQI
70AQI
85AQI
77AQI
77AQI
64AQI
68AQI
77AQI
78AQI
68AQI
65AQI
71AQI
82AQI
87AQI
80AQI
66AQI
53AQI
57AQI
69AQI
72AQI
83AQI
81AQI
83AQI
94AQI
99AQI
90AQI
112AQI
108AQI
102AQI
106AQI
97AQI
97AQI
106AQI
72AQI
91AQI
81AQI
72AQI
76AQI
66AQI
63AQI
66AQI
72AQI
68AQI
74AQI
73AQI
69AQI
62AQI
68AQI
62AQI
64AQI
64AQI
64AQI
70AQI
69AQI
50AQI
56AQI
66AQI
66AQI
77AQI
61AQI
59AQI
63AQI
54AQI
51AQI
57AQI
85AQI
73AQI
68AQI
74AQI
80AQI
87AQI
80AQI
79AQI
71AQI
57AQI
No. of days
202577AQI
Highest AQI recorded in
June87AQI
Lowest AQI recorded in
October57AQI
202467AQI
Highest AQI recorded in
November89AQI
Lowest AQI recorded in
January49AQI
202369AQI
Highest AQI recorded in
August90AQI
Lowest AQI recorded in
December34AQI
202274AQI
Highest AQI recorded in
August100AQI
Lowest AQI recorded in
January54AQI
202181AQI
Highest AQI recorded in
July101AQI
Lowest AQI recorded in
December54AQI
202069AQI
Highest AQI recorded in
June97AQI
Lowest AQI recorded in
November38AQI
Most & Least Polluted Years Over the Last 6 Years
Johannesburg's annual 2025 AQI (77) shows an average percentage change of 7.5% (worsened AQI) compared to previous years: 2020 (69), 2021 (81), 2022 (74), 2023 (69), 2024 (67).