Cato Ridge, Pietermaritzburg, KwaZulu Natal, 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
Cato Ridge, Pietermaritzburg, KwaZulu Natal, South Africa
AQI Trends: Highest and Lowest
Same Day Analysis (21st October ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 2nd highest AQI at 72 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 21st Oct - 22nd Oct 2025
Cato Ridge, Pietermaritzburg, KwaZulu Natal, South Africa
5 AM21st Oct 2025
6 PM
4 AM22nd Oct 2025
AQI
AQI
82AQI
26AQI
In the last 24 hours,
Cato Ridge's AQI reached its highest point of 82 at 12 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 21st Oct and 22nd Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Cato Ridge, Pietermaritzburg, KwaZulu Natal, South Africa
21°C15/33°C
16°C13/19°C
13°C11/15°C
13°C8/17°C
15°C10/21°C
19°C10/29°C
19°C14/25°C
12°C11/13°C
12°C11/16°C
16°C9/26°C
15°C12/18°C
12°C11/14°C
16°C11/24°C
19°C14/24°C
18°C14/29°C
17°C13/24°C
19°C13/26°C
19°C17/23°C
23°C15/32°C
23°C17/30°C
20°C16/26°C
19°C15/26°C
23°C17/36°C
17°C16/20°C
15°C13/18°C
15°C11/20°C
20°C12/31°C
14°C14/15°C
13°C12/15°C
--°C/°C
--°C/°C
73AQI
64AQI
76AQI
68AQI
2025 Days Vs Air Quality
Cato Ridge, Pietermaritzburg, KwaZulu Natal, South Africa
0.6%
2
48%
142
51%
150
Total number of days with different AQI categories in last 294 days in 2025 (71 days remaining)
Under WHO’s Safe Air Quality Limits: 0.68%
Health Risk Level:
Extreme
In 2025, 0.68% of 294 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
Cato Ridge, Pietermaritzburg, KwaZulu Natal, South Africa
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
116AQI
123AQI
119AQI
120AQI
120AQI
123AQI
116AQI
125AQI
117AQI
116AQI
121AQI
121AQI
120AQI
117AQI
116AQI
124AQI
126AQI
117AQI
120AQI
121AQI
117AQI
121AQI
118AQI
120AQI
121AQI
117AQI
120AQI
117AQI
118AQI
113AQI
120AQI
114AQI
116AQI
118AQI
121AQI
126AQI
120AQI
115AQI
117AQI
117AQI
118AQI
109AQI
111AQI
117AQI
116AQI
108AQI
117AQI
111AQI
103AQI
107AQI
105AQI
105AQI
105AQI
113AQI
117AQI
108AQI
118AQI
116AQI
114AQI
110AQI
116AQI
109AQI
105AQI
102AQI
108AQI
107AQI
103AQI
102AQI
104AQI
115AQI
115AQI
115AQI
108AQI
112AQI
106AQI
110AQI
112AQI
107AQI
109AQI
110AQI
112AQI
116AQI
122AQI
124AQI
121AQI
119AQI
119AQI
108AQI
107AQI
109AQI
109AQI
120AQI
115AQI
123AQI
111AQI
113AQI
108AQI
124AQI
124AQI
118AQI
115AQI
112AQI
133AQI
106AQI
99AQI
101AQI
101AQI
108AQI
110AQI
113AQI
112AQI
105AQI
106AQI
105AQI
102AQI
100AQI
104AQI
108AQI
102AQI
114AQI
94AQI
88AQI
89AQI
94AQI
89AQI
93AQI
98AQI
115AQI
105AQI
115AQI
101AQI
98AQI
98AQI
104AQI
112AQI
113AQI
108AQI
116AQI
120AQI
121AQI
109AQI
102AQI
97AQI
103AQI
98AQI
107AQI
104AQI
111AQI
114AQI
117AQI
118AQI
118AQI
119AQI
123AQI
115AQI
115AQI
114AQI
118AQI
110AQI
106AQI
97AQI
82AQI
88AQI
92AQI
102AQI
98AQI
91AQI
87AQI
82AQI
80AQI
80AQI
78AQI
75AQI
79AQI
81AQI
82AQI
88AQI
83AQI
80AQI
79AQI
77AQI
76AQI
85AQI
96AQI
98AQI
93AQI
84AQI
87AQI
82AQI
83AQI
88AQI
94AQI
100AQI
90AQI
80AQI
81AQI
82AQI
82AQI
92AQI
78AQI
63AQI
61AQI
64AQI
65AQI
66AQI
66AQI
62AQI
60AQI
59AQI
60AQI
59AQI
75AQI
63AQI
61AQI
64AQI
74AQI
82AQI
73AQI
60AQI
61AQI
62AQI
65AQI
63AQI
64AQI
70AQI
86AQI
86AQI
72AQI
65AQI
65AQI
64AQI
61AQI
62AQI
66AQI
67AQI
67AQI
73AQI
71AQI
74AQI
81AQI
89AQI
86AQI
70AQI
69AQI
74AQI
95AQI
79AQI
80AQI
73AQI
69AQI
70AQI
68AQI
64AQI
71AQI
67AQI
66AQI
64AQI
66AQI
67AQI
63AQI
63AQI
62AQI
55AQI
62AQI
68AQI
67AQI
64AQI
48AQI
55AQI
70AQI
96AQI
51AQI
45AQI
57AQI
71AQI
59AQI
64AQI
71AQI
92AQI
70AQI
88AQI
85AQI
104AQI
101AQI
82AQI
74AQI
89AQI
70AQI
70AQI
60AQI
69AQI
61AQI
59AQI
72AQI
119AQI
114AQI
111AQI
111AQI
105AQI
94AQI
78AQI
70AQI
67AQI
75AQI
No. of days
202595AQI
Highest AQI recorded in
January119AQI
Lowest AQI recorded in
September67AQI
202470AQI
Highest AQI recorded in
December114AQI
Lowest AQI recorded in
January41AQI
202342AQI
Highest AQI recorded in
November57AQI
Lowest AQI recorded in
December41AQI
202241AQI
Highest AQI recorded in
May73AQI
Lowest AQI recorded in
March30AQI
Most & Least Polluted Years Over the Last 4 Years
Cato Ridge's annual 2025 AQI (95) shows an average percentage change of 97.7% (worsened AQI) compared to previous years: 2022 (41), 2023 (42), 2024 (70).