Newcastle, New South Wales, Australia 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
Newcastle, New South Wales, Australia
AQI Trends: Highest and Lowest
Same Day Analysis (10th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 46 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 11th Oct - 12th Oct 2025
Newcastle, New South Wales, Australia
5 AM11th Oct 2025
5 PM
4 AM12th Oct 2025
AQI
AQI
69AQI
48AQI
In the last 24 hours,
Newcastle's AQI reached its highest point of 69 at 8 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 11th Oct and 12th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Newcastle, New South Wales, Australia
14°C10/17°C
14°C10/20°C
16°C11/22°C
17°C11/23°C
19°C14/24°C
19°C15/24°C
16°C11/19°C
17°C11/23°C
17°C13/23°C
15°C9/21°C
15°C10/21°C
13°C10/16°C
15°C9/22°C
17°C11/24°C
19°C15/25°C
20°C16/25°C
20°C16/24°C
18°C17/20°C
20°C15/25°C
20°C15/24°C
17°C12/25°C
16°C10/21°C
16°C12/20°C
19°C12/28°C
21°C16/30°C
20°C16/24°C
23°C18/30°C
23°C20/28°C
22°C17/29°C
--°C/°C
--°C/°C
35AQI
31AQI
36AQI
31AQI
2025 Days Vs Air Quality
Newcastle, New South Wales, Australia
99%
281
0.7%
2
Total number of days with different AQI categories in last 284 days in 2025 (81 days remaining)
Under WHO’s Safe Air Quality Limits: 99%
Health Risk Level:
Very Low
In 2025, 99% of 284 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
Newcastle, New South Wales, Australia
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
29AQI
30AQI
27AQI
26AQI
28AQI
32AQI
25AQI
22AQI
21AQI
22AQI
21AQI
23AQI
23AQI
24AQI
28AQI
23AQI
26AQI
31AQI
27AQI
27AQI
31AQI
37AQI
28AQI
30AQI
27AQI
29AQI
32AQI
37AQI
36AQI
29AQI
25AQI
23AQI
21AQI
22AQI
26AQI
34AQI
29AQI
29AQI
27AQI
30AQI
25AQI
27AQI
27AQI
30AQI
28AQI
29AQI
25AQI
26AQI
29AQI
26AQI
25AQI
24AQI
22AQI
24AQI
28AQI
20AQI
24AQI
22AQI
28AQI
29AQI
29AQI
27AQI
30AQI
30AQI
30AQI
29AQI
25AQI
26AQI
21AQI
20AQI
18AQI
21AQI
25AQI
31AQI
27AQI
28AQI
26AQI
25AQI
26AQI
24AQI
22AQI
21AQI
21AQI
20AQI
23AQI
20AQI
21AQI
18AQI
19AQI
18AQI
21AQI
22AQI
26AQI
35AQI
26AQI
28AQI
23AQI
20AQI
20AQI
21AQI
30AQI
23AQI
24AQI
28AQI
25AQI
24AQI
22AQI
28AQI
30AQI
29AQI
25AQI
23AQI
24AQI
22AQI
21AQI
22AQI
18AQI
18AQI
19AQI
17AQI
17AQI
17AQI
20AQI
18AQI
18AQI
21AQI
22AQI
22AQI
19AQI
17AQI
16AQI
16AQI
17AQI
23AQI
18AQI
18AQI
20AQI
17AQI
18AQI
21AQI
19AQI
19AQI
15AQI
17AQI
20AQI
24AQI
37AQI
20AQI
26AQI
24AQI
24AQI
26AQI
28AQI
25AQI
20AQI
21AQI
22AQI
19AQI
17AQI
17AQI
15AQI
16AQI
20AQI
19AQI
20AQI
21AQI
24AQI
28AQI
30AQI
34AQI
40AQI
38AQI
43AQI
33AQI
30AQI
29AQI
27AQI
25AQI
23AQI
30AQI
28AQI
23AQI
21AQI
18AQI
21AQI
30AQI
26AQI
22AQI
22AQI
23AQI
26AQI
20AQI
24AQI
23AQI
25AQI
28AQI
27AQI
30AQI
27AQI
31AQI
31AQI
32AQI
28AQI
26AQI
25AQI
27AQI
25AQI
21AQI
19AQI
20AQI
20AQI
20AQI
22AQI
23AQI
25AQI
24AQI
22AQI
27AQI
23AQI
22AQI
19AQI
18AQI
18AQI
21AQI
23AQI
21AQI
20AQI
19AQI
19AQI
20AQI
20AQI
18AQI
18AQI
19AQI
19AQI
20AQI
21AQI
23AQI
22AQI
19AQI
18AQI
18AQI
19AQI
23AQI
21AQI
21AQI
26AQI
30AQI
22AQI
24AQI
24AQI
25AQI
23AQI
20AQI
20AQI
23AQI
22AQI
22AQI
29AQI
27AQI
25AQI
27AQI
20AQI
21AQI
21AQI
18AQI
21AQI
26AQI
37AQI
36AQI
53AQI
28AQI
41AQI
33AQI
36AQI
36AQI
32AQI
49AQI
49AQI
45AQI
50AQI
55AQI
46AQI
28AQI
26AQI
24AQI
24AQI
20AQI
26AQI
25AQI
21AQI
26AQI
43AQI
No. of days
202525AQI
Highest AQI recorded in
October43AQI
Lowest AQI recorded in
May20AQI
202428AQI
Highest AQI recorded in
December34AQI
Lowest AQI recorded in
July21AQI
202330AQI
Highest AQI recorded in
September36AQI
Lowest AQI recorded in
April23AQI
202225AQI
Highest AQI recorded in
January30AQI
Lowest AQI recorded in
October22AQI
202128AQI
Highest AQI recorded in
August34AQI
Lowest AQI recorded in
November24AQI
202029AQI
Highest AQI recorded in
March35AQI
Lowest AQI recorded in
October25AQI
Most & Least Polluted Years Over the Last 6 Years
Newcastle's annual 2025 AQI (25) shows an average percentage change of -10.003% (improved AQI) compared to previous years: 2020 (29), 2021 (28), 2022 (25), 2023 (30), 2024 (28).