Hong Kong Island, Hong Kong, China Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
March Air Quality Analysis
Hong Kong Island, Hong Kong, China
AQI Trends: Highest and Lowest
Same Day Analysis (7th March):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 64 of Moderate air quality, showing improvement over 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 6th Mar - 7th Mar 2026
Hong Kong Island, Hong Kong, China
6 AM6th Mar 2026
6 PM
5 AM7th Mar 2026
64AQI
36AQI
64AQI
48AQI
In the last 24 hours,
Hong Kong Island's AQI reached its highest point of 64 at 3 PM during the Day, while the lowest point, 36, was recorded at 7 AM during the Day between 6th Mar and 7th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Hong Kong Island, Hong Kong, China
21°C19/22°C
19°C18/20°C
16°C14/17°C
16°C15/16°C
18°C16/19°C
20°C18/21°C
18°C18/19°C
19°C18/21°C
20°C18/21°C
21°C20/22°C
21°C20/23°C
19°C18/20°C
19°C18/19°C
18°C17/19°C
19°C18/21°C
20°C19/21°C
21°C19/22°C
20°C20/21°C
21°C20/22°C
21°C20/23°C
20°C20/20°C
21°C20/22°C
20°C19/21°C
20°C19/21°C
22°C21/24°C
20°C18/21°C
18°C17/19°C
19°C18/20°C
20°C18/21°C
19°C18/19°C
67AQI
48AQI
66AQI
49AQI
2026 Days Vs Air Quality
Hong Kong Island, Hong Kong, China
14%
9
83%
55
3%
2
Total number of days with different AQI categories in last 67 days in 2026 (298 days remaining)
Under WHO’s Safe Air Quality Limits: 14%
Health Risk Level:
Extreme
In 2026, 14% of 67 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.
Annual Air Quality Insights
Hong Kong Island, Hong Kong, China
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
67AQI (US)
72AQI (US)
57AQI (US)
71AQI (US)
80AQI (US)
69AQI (US)
83AQI (US)
63AQI (US)
63AQI (US)
78AQI (US)
64AQI (US)
88AQI (US)
118AQI (US)
81AQI (US)
85AQI (US)
87AQI (US)
73AQI (US)
74AQI (US)
88AQI (US)
57AQI (US)
96AQI (US)
86AQI (US)
99AQI (US)
116AQI (US)
72AQI (US)
49AQI (US)
82AQI (US)
84AQI (US)
76AQI (US)
57AQI (US)
56AQI (US)
55AQI (US)
64AQI (US)
72AQI (US)
86AQI (US)
71AQI (US)
59AQI (US)
67AQI (US)
54AQI (US)
69AQI (US)
60AQI (US)
55AQI (US)
73AQI (US)
75AQI (US)
62AQI (US)
38AQI (US)
45AQI (US)
68AQI (US)
67AQI (US)
70AQI (US)
94AQI (US)
89AQI (US)
78AQI (US)
87AQI (US)
72AQI (US)
68AQI (US)
41AQI (US)
67AQI (US)
35AQI (US)
30AQI (US)
66AQI (US)
33AQI (US)
25AQI (US)
36AQI (US)
52AQI (US)
64AQI (US)
77AQI (US)
66AQI (US)
44AQI (US)
No. of days
202669AQI (US)
Highest AQI (US) recorded in
January77AQI (US)
Lowest AQI (US) recorded in
March44AQI (US)
202563AQI (US)
Highest AQI (US) recorded in
January87AQI (US)
Lowest AQI (US) recorded in
September42AQI (US)
202460AQI (US)
Highest AQI (US) recorded in
December93AQI (US)
Lowest AQI (US) recorded in
July31AQI (US)
202360AQI (US)
Highest AQI (US) recorded in
December77AQI (US)
Lowest AQI (US) recorded in
July40AQI (US)
202259AQI (US)
Highest AQI (US) recorded in
August123AQI (US)
Lowest AQI (US) recorded in
June35AQI (US)
202160AQI (US)
Highest AQI (US) recorded in
January89AQI (US)
Lowest AQI (US) recorded in
July42AQI (US)
202054AQI (US)
Highest AQI (US) recorded in
December85AQI (US)
Lowest AQI (US) recorded in
July27AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Hong Kong Island's annual 2026 AQI (US) (69) shows an average percentage change of 16.009% (worsened AQI (US)) compared to previous years: 2020 (54), 2021 (60), 2022 (59), 2023 (60), 2024 (60), 2025 (63).