Eltham, Greenwich, United Kingdom Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
July Air Quality Analysis
Eltham, Greenwich, United Kingdom
AQI Trends: Highest and Lowest
Same Day Analysis (29th July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 30 of Good air quality, showing improvement over 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 29th Jul - 30th Jul 2025
Eltham, Greenwich, United Kingdom
5 AM29th Jul 2025
9 PM
4 AM30th Jul 2025
31AQI
25AQI
37AQI
30AQI
In the last 24 hours,
Eltham's AQI reached its highest point of 37 at 2 AM during the Night, while the lowest point, 25, was recorded at 10 AM during the Day between 29th Jul and 30th Jul 2025.
Day & Night AQI Trend : Jun - Jul 2025
Eltham, Greenwich, United Kingdom
26°C18/33°C
27°C21/34°C
20°C16/25°C
20°C13/26°C
21°C15/27°C
18°C16/20°C
19°C16/22°C
17°C13/22°C
18°C11/24°C
20°C14/25°C
24°C19/30°C
24°C18/30°C
23°C18/29°C
22°C16/29°C
22°C17/27°C
19°C14/23°C
21°C16/27°C
21°C17/26°C
24°C19/31°C
19°C17/22°C
19°C16/23°C
18°C15/23°C
19°C15/24°C
19°C15/23°C
17°C16/21°C
21°C17/26°C
20°C17/23°C
19°C16/23°C
19°C14/23°C
18°C15/22°C
--°C/°C
33AQI
32AQI
34AQI
33AQI
2025 Days Vs Air Quality
Eltham, Greenwich, United Kingdom
73%
154
26%
55
0.4%
1
Total number of days with different AQI categories in last 211 days in 2025 (154 days remaining)
Under WHO’s Safe Air Quality Limits: 73%
Health Risk Level:
Low
In 2025, 73% of 211 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
Eltham, Greenwich, United Kingdom
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
30AQI
31AQI
41AQI
46AQI
22AQI
21AQI
23AQI
34AQI
48AQI
67AQI
100AQI
85AQI
45AQI
50AQI
52AQI
45AQI
54AQI
72AQI
63AQI
60AQI
63AQI
72AQI
45AQI
42AQI
40AQI
36AQI
30AQI
27AQI
30AQI
30AQI
29AQI
37AQI
53AQI
54AQI
29AQI
38AQI
46AQI
41AQI
63AQI
55AQI
82AQI
69AQI
63AQI
65AQI
65AQI
76AQI
65AQI
64AQI
73AQI
78AQI
52AQI
43AQI
32AQI
28AQI
26AQI
33AQI
30AQI
36AQI
48AQI
48AQI
58AQI
66AQI
65AQI
78AQI
65AQI
53AQI
58AQI
80AQI
108AQI
53AQI
38AQI
32AQI
43AQI
33AQI
27AQI
34AQI
50AQI
64AQI
60AQI
74AQI
50AQI
78AQI
87AQI
81AQI
54AQI
46AQI
30AQI
26AQI
34AQI
35AQI
40AQI
49AQI
63AQI
80AQI
41AQI
31AQI
35AQI
55AQI
39AQI
39AQI
58AQI
71AQI
45AQI
29AQI
46AQI
24AQI
31AQI
43AQI
46AQI
29AQI
45AQI
28AQI
23AQI
48AQI
42AQI
57AQI
66AQI
50AQI
57AQI
61AQI
70AQI
57AQI
50AQI
24AQI
23AQI
23AQI
26AQI
26AQI
39AQI
40AQI
47AQI
39AQI
46AQI
42AQI
39AQI
43AQI
35AQI
46AQI
39AQI
33AQI
40AQI
36AQI
33AQI
30AQI
24AQI
26AQI
25AQI
22AQI
24AQI
25AQI
27AQI
29AQI
26AQI
25AQI
25AQI
22AQI
19AQI
17AQI
20AQI
53AQI
38AQI
40AQI
51AQI
43AQI
41AQI
31AQI
30AQI
33AQI
35AQI
46AQI
55AQI
45AQI
38AQI
25AQI
27AQI
26AQI
27AQI
25AQI
26AQI
26AQI
32AQI
48AQI
42AQI
25AQI
25AQI
26AQI
26AQI
24AQI
29AQI
28AQI
29AQI
40AQI
37AQI
41AQI
41AQI
33AQI
33AQI
37AQI
34AQI
34AQI
30AQI
24AQI
24AQI
37AQI
48AQI
42AQI
38AQI
30AQI
31AQI
30AQI
46AQI
52AQI
55AQI
46AQI
35AQI
33AQI
33AQI
No. of days
202543AQI
Highest AQI recorded in
March55AQI
Lowest AQI recorded in
June33AQI
202434AQI
Highest AQI recorded in
November44AQI
Lowest AQI recorded in
July26AQI
202336AQI
Highest AQI recorded in
September48AQI
Lowest AQI recorded in
August27AQI
202234AQI
Highest AQI recorded in
March66AQI
Lowest AQI recorded in
September23AQI
202133AQI
Highest AQI recorded in
March44AQI
Lowest AQI recorded in
October24AQI
202036AQI
Highest AQI recorded in
April53AQI
Lowest AQI recorded in
July24AQI
Most & Least Polluted Years Over the Last 6 Years
Eltham's annual 2025 AQI (43) shows an average percentage change of 24.1% (worsened AQI) compared to previous years: 2020 (36), 2021 (33), 2022 (34), 2023 (36), 2024 (34).