Florence, Tuscany, Italy Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Florence, Tuscany, Italy
AQI Trends: Highest and Lowest
Same Day Analysis (21st September ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 2nd highest AQI at 32 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 21st Sep - 22nd Sep 2025
Florence, Tuscany, Italy
6 AM21st Sep 2025
7 PM
5 AM22nd Sep 2025
39AQI
36AQI
39AQI
31AQI
In the last 24 hours,
Florence's AQI reached its highest point of 39 at 6 AM during the Night, while the lowest point, 31, was recorded at 5 AM during the Night between 21st Sep and 22nd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Florence, Tuscany, Italy
24°C19/30°C
23°C19/29°C
23°C19/29°C
24°C19/30°C
25°C21/32°C
26°C20/33°C
23°C20/27°C
20°C17/24°C
21°C16/27°C
23°C18/29°C
21°C19/26°C
21°C18/26°C
23°C18/30°C
22°C18/28°C
23°C17/30°C
24°C18/30°C
23°C18/28°C
22°C20/27°C
19°C17/20°C
20°C16/25°C
21°C17/26°C
21°C18/27°C
21°C17/24°C
22°C18/28°C
22°C20/27°C
22°C18/28°C
24°C18/31°C
25°C19/32°C
26°C20/32°C
25°C20/30°C
--°C/°C
33AQI
32AQI
34AQI
33AQI
2025 Days Vs Air Quality
Florence, Tuscany, Italy
74%
196
24%
63
2%
4
0.3%
1
Total number of days with different AQI categories in last 265 days in 2025 (100 days remaining)
Under WHO’s Safe Air Quality Limits: 74%
Health Risk Level:
Low
In 2025, 74% of 265 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
Florence, Tuscany, Italy
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
107AQI
66AQI
80AQI
90AQI
85AQI
76AQI
76AQI
88AQI
64AQI
49AQI
46AQI
41AQI
40AQI
42AQI
42AQI
35AQI
43AQI
59AQI
59AQI
55AQI
54AQI
59AQI
56AQI
54AQI
56AQI
50AQI
50AQI
43AQI
40AQI
36AQI
36AQI
34AQI
38AQI
46AQI
49AQI
49AQI
48AQI
51AQI
49AQI
54AQI
60AQI
58AQI
59AQI
54AQI
47AQI
48AQI
50AQI
55AQI
57AQI
61AQI
57AQI
60AQI
67AQI
89AQI
125AQI
146AQI
152AQI
127AQI
70AQI
39AQI
38AQI
43AQI
45AQI
47AQI
53AQI
56AQI
55AQI
55AQI
53AQI
52AQI
42AQI
36AQI
42AQI
44AQI
33AQI
34AQI
34AQI
36AQI
41AQI
45AQI
50AQI
45AQI
33AQI
33AQI
35AQI
32AQI
31AQI
40AQI
31AQI
31AQI
26AQI
30AQI
35AQI
40AQI
39AQI
39AQI
36AQI
41AQI
38AQI
44AQI
49AQI
47AQI
46AQI
43AQI
38AQI
39AQI
41AQI
29AQI
25AQI
28AQI
26AQI
31AQI
36AQI
30AQI
22AQI
22AQI
24AQI
29AQI
32AQI
35AQI
41AQI
49AQI
48AQI
44AQI
36AQI
29AQI
31AQI
29AQI
35AQI
32AQI
33AQI
32AQI
33AQI
34AQI
40AQI
43AQI
40AQI
40AQI
39AQI
39AQI
39AQI
36AQI
33AQI
31AQI
34AQI
37AQI
38AQI
41AQI
35AQI
29AQI
35AQI
38AQI
36AQI
41AQI
44AQI
43AQI
45AQI
46AQI
50AQI
56AQI
61AQI
68AQI
69AQI
70AQI
67AQI
65AQI
60AQI
57AQI
53AQI
53AQI
54AQI
51AQI
49AQI
50AQI
52AQI
54AQI
54AQI
53AQI
50AQI
47AQI
48AQI
45AQI
44AQI
42AQI
46AQI
48AQI
49AQI
39AQI
32AQI
32AQI
32AQI
30AQI
33AQI
34AQI
37AQI
34AQI
36AQI
38AQI
34AQI
34AQI
37AQI
35AQI
29AQI
27AQI
25AQI
25AQI
25AQI
23AQI
24AQI
22AQI
22AQI
24AQI
30AQI
33AQI
33AQI
32AQI
32AQI
33AQI
36AQI
35AQI
40AQI
46AQI
53AQI
57AQI
59AQI
59AQI
56AQI
54AQI
56AQI
54AQI
53AQI
51AQI
45AQI
37AQI
34AQI
31AQI
31AQI
33AQI
39AQI
45AQI
37AQI
33AQI
25AQI
22AQI
22AQI
22AQI
21AQI
26AQI
24AQI
25AQI
28AQI
33AQI
36AQI
30AQI
25AQI
24AQI
23AQI
25AQI
26AQI
24AQI
27AQI
30AQI
35AQI
32AQI
57AQI
66AQI
41AQI
35AQI
37AQI
53AQI
33AQI
42AQI
27AQI
No. of days
202544AQI
Highest AQI recorded in
February66AQI
Lowest AQI recorded in
September27AQI
202440AQI
Highest AQI recorded in
November55AQI
Lowest AQI recorded in
May27AQI
202349AQI
Highest AQI recorded in
November72AQI
Lowest AQI recorded in
March31AQI
202252AQI
Highest AQI recorded in
January65AQI
Lowest AQI recorded in
April42AQI
202144AQI
Highest AQI recorded in
December61AQI
Lowest AQI recorded in
May28AQI
202043AQI
Highest AQI recorded in
December61AQI
Lowest AQI recorded in
May33AQI
Most & Least Polluted Years Over the Last 6 Years
Florence's annual 2025 AQI (44) shows an average percentage change of -3.2% (improved AQI) compared to previous years: 2020 (43), 2021 (44), 2022 (52), 2023 (49), 2024 (40).