Noumea, Province Sud, New Caledonia 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
Noumea, Province Sud, New Caledonia
AQI Trends: Highest and Lowest
Same Day Analysis (16th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 20 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 17th Sep - 18th Sep 2025
Noumea, Province Sud, New Caledonia
6 AM17th Sep 2025
5 PM
5 AM18th Sep 2025
28AQI
15AQI
41AQI
21AQI
In the last 24 hours,
Noumea's AQI reached its highest point of 41 at 11 PM during the Night, while the lowest point, 15, was recorded at 1 PM during the Day between 17th Sep and 18th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Noumea, Province Sud, New Caledonia
20°C18/21°C
19°C19/20°C
19°C18/19°C
19°C18/21°C
20°C18/23°C
21°C18/24°C
21°C19/22°C
20°C18/22°C
20°C19/22°C
20°C18/21°C
20°C18/22°C
21°C18/22°C
20°C19/21°C
20°C18/23°C
21°C18/24°C
22°C19/25°C
23°C20/26°C
23°C21/25°C
21°C18/21°C
19°C18/20°C
19°C18/21°C
19°C17/22°C
20°C17/23°C
21°C18/24°C
22°C20/24°C
20°C19/22°C
20°C18/22°C
20°C18/22°C
21°C18/23°C
21°C18/24°C
--°C/°C
30AQI
21AQI
33AQI
21AQI
2025 Days Vs Air Quality
Noumea, Province Sud, New Caledonia
100%
259
Total number of days with different AQI categories in last 261 days in 2025 (104 days remaining)
Under WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2025, 100% of 261 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
Noumea, Province Sud, New Caledonia
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
30AQI
32AQI
33AQI
32AQI
30AQI
30AQI
30AQI
28AQI
30AQI
28AQI
27AQI
27AQI
28AQI
29AQI
29AQI
26AQI
27AQI
29AQI
29AQI
28AQI
27AQI
28AQI
27AQI
26AQI
28AQI
29AQI
27AQI
27AQI
27AQI
26AQI
27AQI
31AQI
27AQI
26AQI
27AQI
24AQI
26AQI
25AQI
26AQI
25AQI
26AQI
27AQI
26AQI
26AQI
24AQI
25AQI
24AQI
25AQI
25AQI
23AQI
25AQI
25AQI
27AQI
28AQI
28AQI
28AQI
27AQI
25AQI
25AQI
25AQI
24AQI
22AQI
23AQI
22AQI
21AQI
21AQI
21AQI
21AQI
22AQI
21AQI
21AQI
20AQI
22AQI
21AQI
19AQI
19AQI
21AQI
20AQI
21AQI
20AQI
21AQI
21AQI
22AQI
20AQI
21AQI
21AQI
23AQI
22AQI
22AQI
22AQI
23AQI
24AQI
23AQI
26AQI
26AQI
25AQI
23AQI
17AQI
16AQI
15AQI
18AQI
19AQI
19AQI
16AQI
15AQI
16AQI
20AQI
19AQI
19AQI
19AQI
18AQI
17AQI
19AQI
20AQI
19AQI
21AQI
20AQI
25AQI
25AQI
26AQI
25AQI
24AQI
22AQI
22AQI
22AQI
25AQI
27AQI
30AQI
27AQI
25AQI
22AQI
22AQI
20AQI
20AQI
22AQI
23AQI
22AQI
22AQI
23AQI
23AQI
24AQI
20AQI
20AQI
20AQI
20AQI
22AQI
23AQI
24AQI
28AQI
27AQI
28AQI
27AQI
28AQI
29AQI
27AQI
26AQI
25AQI
25AQI
24AQI
25AQI
26AQI
32AQI
31AQI
32AQI
31AQI
30AQI
31AQI
29AQI
30AQI
31AQI
31AQI
29AQI
30AQI
29AQI
32AQI
31AQI
29AQI
29AQI
28AQI
27AQI
24AQI
25AQI
23AQI
21AQI
20AQI
19AQI
20AQI
19AQI
21AQI
21AQI
22AQI
23AQI
25AQI
22AQI
21AQI
22AQI
24AQI
24AQI
26AQI
24AQI
23AQI
22AQI
20AQI
22AQI
24AQI
21AQI
20AQI
19AQI
22AQI
21AQI
22AQI
22AQI
25AQI
24AQI
22AQI
26AQI
27AQI
31AQI
28AQI
27AQI
24AQI
22AQI
23AQI
23AQI
21AQI
21AQI
22AQI
20AQI
20AQI
18AQI
29AQI
23AQI
21AQI
24AQI
25AQI
30AQI
27AQI
25AQI
26AQI
25AQI
24AQI
25AQI
28AQI
40AQI
34AQI
35AQI
25AQI
23AQI
23AQI
23AQI
24AQI
24AQI
25AQI
29AQI
25AQI
26AQI
28AQI
22AQI
20AQI
28AQI
26AQI
21AQI
20AQI
23AQI
29AQI
22AQI
24AQI
27AQI
No. of days
202524AQI
Highest AQI recorded in
June29AQI
Lowest AQI recorded in
April20AQI
202422AQI
Highest AQI recorded in
June32AQI
Lowest AQI recorded in
March14AQI
202317AQI
Highest AQI recorded in
October23AQI
Lowest AQI recorded in
November10AQI
202217AQI
Highest AQI recorded in
October19AQI
Lowest AQI recorded in
August8AQI
202114AQI
Highest AQI recorded in
July20AQI
Lowest AQI recorded in
February6AQI
20208AQI
Highest AQI recorded in
July9AQI
Lowest AQI recorded in
March6AQI
Most & Least Polluted Years Over the Last 6 Years
Noumea's annual 2025 AQI (24) shows an average percentage change of 78.6% (worsened AQI) compared to previous years: 2020 (8), 2021 (14), 2022 (17), 2023 (17), 2024 (22).