Algiers, Alger, Algeria Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Algiers, Alger, Algeria
AQI Trends: Highest and Lowest
Same Day Analysis (4th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 39 of Good air quality, showing improvement over 2024 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Algiers, Alger, Algeria
5 AM4th Aug 2025
8 PM
4 AM5th Aug 2025
47AQI
36AQI
42AQI
34AQI
In the last 24 hours,
Algiers's AQI reached its highest point of 47 at 11 AM during the Day, while the lowest point, 34, was recorded at 8 PM during the Night between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Algiers, Alger, Algeria
28°C26/30°C
28°C26/30°C
27°C26/29°C
26°C25/28°C
27°C25/29°C
27°C25/30°C
27°C25/28°C
27°C25/29°C
29°C26/31°C
27°C26/29°C
27°C25/29°C
28°C26/31°C
31°C28/34°C
29°C27/32°C
29°C26/32°C
29°C27/30°C
27°C26/29°C
27°C26/29°C
27°C26/28°C
25°C24/26°C
25°C23/27°C
26°C24/28°C
28°C26/30°C
25°C24/27°C
25°C24/27°C
26°C24/28°C
26°C24/27°C
26°C24/28°C
26°C25/28°C
26°C24/28°C
--°C/°C
44AQI
44AQI
45AQI
43AQI
2025 Days Vs Air Quality
Algiers, Alger, Algeria
59%
127
41%
89
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Under WHO’s Safe Air Quality Limits: 59%
Health Risk Level:
Considerable
In 2025, 59% of 217 days were within WHO’s safe air quality limits, and 41% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
Algiers, Alger, Algeria
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
79AQI
77AQI
60AQI
58AQI
63AQI
55AQI
35AQI
51AQI
43AQI
55AQI
52AQI
47AQI
49AQI
55AQI
56AQI
58AQI
65AQI
57AQI
56AQI
58AQI
62AQI
67AQI
95AQI
69AQI
58AQI
61AQI
52AQI
40AQI
35AQI
41AQI
35AQI
44AQI
43AQI
54AQI
56AQI
54AQI
62AQI
57AQI
54AQI
49AQI
53AQI
56AQI
46AQI
46AQI
48AQI
58AQI
63AQI
67AQI
72AQI
59AQI
68AQI
67AQI
62AQI
49AQI
67AQI
56AQI
35AQI
55AQI
59AQI
55AQI
60AQI
63AQI
72AQI
55AQI
57AQI
49AQI
48AQI
41AQI
35AQI
40AQI
34AQI
37AQI
34AQI
27AQI
42AQI
38AQI
37AQI
42AQI
76AQI
69AQI
42AQI
32AQI
33AQI
47AQI
50AQI
44AQI
49AQI
40AQI
39AQI
39AQI
38AQI
39AQI
41AQI
44AQI
41AQI
37AQI
37AQI
39AQI
42AQI
43AQI
43AQI
44AQI
42AQI
41AQI
38AQI
34AQI
33AQI
35AQI
37AQI
33AQI
34AQI
34AQI
36AQI
33AQI
36AQI
40AQI
32AQI
27AQI
33AQI
34AQI
47AQI
60AQI
58AQI
54AQI
40AQI
37AQI
40AQI
42AQI
42AQI
39AQI
41AQI
40AQI
45AQI
42AQI
40AQI
39AQI
41AQI
34AQI
42AQI
37AQI
41AQI
42AQI
42AQI
40AQI
41AQI
40AQI
42AQI
40AQI
41AQI
45AQI
49AQI
51AQI
49AQI
50AQI
54AQI
53AQI
53AQI
51AQI
52AQI
54AQI
59AQI
60AQI
61AQI
66AQI
67AQI
64AQI
60AQI
57AQI
55AQI
55AQI
55AQI
52AQI
52AQI
52AQI
61AQI
55AQI
54AQI
54AQI
54AQI
51AQI
52AQI
51AQI
46AQI
49AQI
51AQI
50AQI
50AQI
52AQI
55AQI
48AQI
45AQI
46AQI
45AQI
39AQI
37AQI
39AQI
45AQI
47AQI
53AQI
54AQI
52AQI
50AQI
43AQI
42AQI
45AQI
34AQI
35AQI
33AQI
38AQI
45AQI
41AQI
40AQI
39AQI
36AQI
34AQI
39AQI
56AQI
56AQI
46AQI
37AQI
43AQI
55AQI
45AQI
37AQI
No. of days
202548AQI
Highest AQI recorded in
January56AQI
Lowest AQI recorded in
August37AQI
202454AQI
Highest AQI recorded in
September71AQI
Lowest AQI recorded in
November36AQI
202354AQI
Highest AQI recorded in
December69AQI
Lowest AQI recorded in
May40AQI
202264AQI
Highest AQI recorded in
January74AQI
Lowest AQI recorded in
October55AQI
202168AQI
Highest AQI recorded in
March98AQI
Lowest AQI recorded in
November40AQI
202065AQI
Highest AQI recorded in
November69AQI
Lowest AQI recorded in
December60AQI
Most & Least Polluted Years Over the Last 6 Years
Algiers's annual 2025 AQI (48) shows an average percentage change of -20.3% (improved AQI) compared to previous years: 2020 (65), 2021 (68), 2022 (64), 2023 (54), 2024 (54).