Roskilde, Sj Lland, Denmark 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
Roskilde, Sj Lland, Denmark
AQI Trends: Highest and Lowest
Same Day Analysis (1st October):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 53 of Moderate air quality on the same day.
Day & Night AQI Trend: 1st Oct - 2nd Oct 2026
Roskilde, Sj Lland, Denmark
6 AM1st Oct 2026
7 PM
5 AM2nd Oct 2026
60AQI
48AQI
78AQI
53AQI
In the last 24 hours,
Roskilde's AQI reached its highest point of 78 at 4 AM during the Night, while the lowest point, 48, was recorded at 8 AM during the Day between 1st Oct and 2nd Oct 2026.
Day & Night AQI Trend : Sep - Oct 2026
Roskilde, Sj Lland, Denmark
16°C14/20°C
15°C14/17°C
15°C14/18°C
16°C14/18°C
18°C14/21°C
17°C15/20°C
16°C13/19°C
14°C12/17°C
15°C11/19°C
16°C13/19°C
16°C14/19°C
14°C11/17°C
16°C13/20°C
16°C13/18°C
14°C12/17°C
15°C12/18°C
15°C14/17°C
15°C13/17°C
13°C12/15°C
14°C11/17°C
14°C12/16°C
14°C12/17°C
14°C12/17°C
14°C12/17°C
14°C12/16°C
16°C14/18°C
16°C15/17°C
16°C15/16°C
16°C14/17°C
15°C13/17°C
36AQI
30AQI
36AQI
32AQI
2026 Days Vs Air Quality
Roskilde, Sj Lland, Denmark
90%
244
9%
24
1%
3
Total number of days with different AQI categories in last 275 days in 2026 (90 days remaining)
Under WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2026, 90% of 275 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Roskilde, Sj Lland, Denmark
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
23AQI (US)
11AQI (US)
12AQI (US)
15AQI (US)
29AQI (US)
69AQI (US)
50AQI (US)
51AQI (US)
23AQI (US)
10AQI (US)
22AQI (US)
40AQI (US)
41AQI (US)
27AQI (US)
28AQI (US)
52AQI (US)
59AQI (US)
64AQI (US)
78AQI (US)
72AQI (US)
65AQI (US)
63AQI (US)
32AQI (US)
24AQI (US)
64AQI (US)
16AQI (US)
25AQI (US)
19AQI (US)
28AQI (US)
44AQI (US)
41AQI (US)
39AQI (US)
26AQI (US)
39AQI (US)
36AQI (US)
49AQI (US)
45AQI (US)
27AQI (US)
32AQI (US)
50AQI (US)
74AQI (US)
62AQI (US)
22AQI (US)
15AQI (US)
21AQI (US)
13AQI (US)
25AQI (US)
43AQI (US)
28AQI (US)
25AQI (US)
32AQI (US)
24AQI (US)
20AQI (US)
21AQI (US)
32AQI (US)
33AQI (US)
34AQI (US)
47AQI (US)
43AQI (US)
17AQI (US)
25AQI (US)
13AQI (US)
18AQI (US)
32AQI (US)
28AQI (US)
80AQI (US)
112AQI (US)
101AQI (US)
109AQI (US)
65AQI (US)
22AQI (US)
17AQI (US)
15AQI (US)
27AQI (US)
16AQI (US)
25AQI (US)
14AQI (US)
52AQI (US)
33AQI (US)
27AQI (US)
38AQI (US)
57AQI (US)
81AQI (US)
36AQI (US)
14AQI (US)
20AQI (US)
31AQI (US)
22AQI (US)
21AQI (US)
18AQI (US)
12AQI (US)
27AQI (US)
15AQI (US)
22AQI (US)
41AQI (US)
13AQI (US)
19AQI (US)
20AQI (US)
19AQI (US)
25AQI (US)
35AQI (US)
51AQI (US)
41AQI (US)
16AQI (US)
46AQI (US)
32AQI (US)
35AQI (US)
46AQI (US)
20AQI (US)
23AQI (US)
17AQI (US)
14AQI (US)
12AQI (US)
18AQI (US)
25AQI (US)
35AQI (US)
48AQI (US)
55AQI (US)
29AQI (US)
21AQI (US)
55AQI (US)
30AQI (US)
14AQI (US)
13AQI (US)
14AQI (US)
14AQI (US)
20AQI (US)
22AQI (US)
21AQI (US)
23AQI (US)
12AQI (US)
23AQI (US)
36AQI (US)
40AQI (US)
34AQI (US)
34AQI (US)
33AQI (US)
35AQI (US)
33AQI (US)
38AQI (US)
51AQI (US)
43AQI (US)
34AQI (US)
20AQI (US)
19AQI (US)
21AQI (US)
18AQI (US)
15AQI (US)
25AQI (US)
28AQI (US)
20AQI (US)
18AQI (US)
14AQI (US)
18AQI (US)
12AQI (US)
18AQI (US)
14AQI (US)
19AQI (US)
18AQI (US)
17AQI (US)
16AQI (US)
20AQI (US)
10AQI (US)
18AQI (US)
22AQI (US)
21AQI (US)
22AQI (US)
29AQI (US)
16AQI (US)
20AQI (US)
18AQI (US)
36AQI (US)
20AQI (US)
18AQI (US)
26AQI (US)
30AQI (US)
13AQI (US)
20AQI (US)
17AQI (US)
15AQI (US)
19AQI (US)
14AQI (US)
11AQI (US)
14AQI (US)
11AQI (US)
17AQI (US)
14AQI (US)
12AQI (US)
14AQI (US)
14AQI (US)
17AQI (US)
21AQI (US)
18AQI (US)
16AQI (US)
28AQI (US)
47AQI (US)
32AQI (US)
18AQI (US)
22AQI (US)
25AQI (US)
24AQI (US)
25AQI (US)
27AQI (US)
33AQI (US)
27AQI (US)
29AQI (US)
24AQI (US)
40AQI (US)
37AQI (US)
25AQI (US)
27AQI (US)
33AQI (US)
31AQI (US)
34AQI (US)
29AQI (US)
26AQI (US)
26AQI (US)
26AQI (US)
29AQI (US)
28AQI (US)
28AQI (US)
33AQI (US)
31AQI (US)
29AQI (US)
31AQI (US)
19AQI (US)
20AQI (US)
24AQI (US)
20AQI (US)
23AQI (US)
21AQI (US)
19AQI (US)
22AQI (US)
21AQI (US)
28AQI (US)
29AQI (US)
45AQI (US)
38AQI (US)
24AQI (US)
25AQI (US)
26AQI (US)
24AQI (US)
19AQI (US)
25AQI (US)
25AQI (US)
26AQI (US)
26AQI (US)
33AQI (US)
25AQI (US)
25AQI (US)
30AQI (US)
24AQI (US)
26AQI (US)
34AQI (US)
30AQI (US)
31AQI (US)
23AQI (US)
30AQI (US)
41AQI (US)
38AQI (US)
36AQI (US)
40AQI (US)
30AQI (US)
27AQI (US)
27AQI (US)
33AQI (US)
31AQI (US)
40AQI (US)
62AQI (US)
52AQI (US)
53AQI (US)
39AQI (US)
34AQI (US)
38AQI (US)
28AQI (US)
27AQI (US)
20AQI (US)
22AQI (US)
27AQI (US)
31AQI (US)
53AQI (US)
No. of days
202630AQI (US)
Highest AQI (US) recorded in
October53AQI (US)
Lowest AQI (US) recorded in
June20AQI (US)
202533AQI (US)
Highest AQI (US) recorded in
March52AQI (US)
Lowest AQI (US) recorded in
May20AQI (US)
202427AQI (US)
Highest AQI (US) recorded in
May32AQI (US)
Lowest AQI (US) recorded in
February23AQI (US)
202326AQI (US)
Highest AQI (US) recorded in
May33AQI (US)
Lowest AQI (US) recorded in
November19AQI (US)
202225AQI (US)
Highest AQI (US) recorded in
April30AQI (US)
Lowest AQI (US) recorded in
December18AQI (US)
202125AQI (US)
Highest AQI (US) recorded in
April32AQI (US)
Lowest AQI (US) recorded in
January18AQI (US)
202025AQI (US)
Highest AQI (US) recorded in
March31AQI (US)
Lowest AQI (US) recorded in
December17AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Roskilde's annual 2026 AQI (US) (30) shows an average percentage change of 12.9% (worsened AQI (US)) compared to previous years: 2020 (25), 2021 (25), 2022 (25), 2023 (26), 2024 (27), 2025 (33).