Colombo, Western, Sri Lanka Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
June Air Quality Analysis
Colombo, Western, Sri Lanka
AQI Trends: Highest and Lowest
Same Day Analysis (3rd June):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 40 of Good air quality, showing improvement over 2025 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Jun - 4th Jun 2026
Colombo, Western, Sri Lanka
5 AM3rd Jun 2026
6 PM
4 AM4th Jun 2026
51AQI
19AQI
47AQI
21AQI
In the last 24 hours,
Colombo's AQI reached its highest point of 51 at 5 AM during the Day, while the lowest point, 19, was recorded at 3 PM during the Day between 3rd Jun and 4th Jun 2026.
Day & Night AQI Trend : May - Jun 2026
Colombo, Western, Sri Lanka
28°C26/31°C
28°C26/30°C
28°C26/31°C
28°C25/30°C
27°C26/28°C
28°C26/30°C
28°C26/30°C
27°C26/28°C
27°C26/29°C
27°C26/28°C
28°C27/29°C
28°C27/29°C
28°C27/29°C
28°C27/30°C
28°C27/30°C
28°C27/29°C
28°C27/29°C
28°C27/29°C
28°C27/29°C
28°C27/29°C
28°C27/29°C
28°C27/29°C
28°C27/29°C
28°C27/29°C
28°C27/29°C
28°C27/29°C
28°C27/30°C
28°C27/29°C
28°C27/29°C
28°C27/29°C
61AQI
46AQI
57AQI
51AQI
2026 Days Vs Air Quality
Colombo, Western, Sri Lanka
26%
39
52%
78
23%
34
Total number of days with different AQI categories in last 155 days in 2026 (210 days remaining)
Under WHO’s Safe Air Quality Limits: 26%
Health Risk Level:
Very high
In 2026, 26% of 155 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.
Annual Air Quality Insights
Colombo, Western, Sri Lanka
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
75AQI (US)
64AQI (US)
73AQI (US)
76AQI (US)
75AQI (US)
87AQI (US)
105AQI (US)
77AQI (US)
59AQI (US)
77AQI (US)
77AQI (US)
75AQI (US)
61AQI (US)
73AQI (US)
80AQI (US)
111AQI (US)
132AQI (US)
130AQI (US)
106AQI (US)
101AQI (US)
94AQI (US)
87AQI (US)
89AQI (US)
105AQI (US)
79AQI (US)
72AQI (US)
86AQI (US)
122AQI (US)
111AQI (US)
103AQI (US)
81AQI (US)
57AQI (US)
77AQI (US)
107AQI (US)
100AQI (US)
102AQI (US)
88AQI (US)
86AQI (US)
124AQI (US)
121AQI (US)
111AQI (US)
90AQI (US)
107AQI (US)
124AQI (US)
102AQI (US)
113AQI (US)
117AQI (US)
108AQI (US)
97AQI (US)
83AQI (US)
78AQI (US)
79AQI (US)
47AQI (US)
62AQI (US)
61AQI (US)
72AQI (US)
87AQI (US)
108AQI (US)
115AQI (US)
122AQI (US)
134AQI (US)
135AQI (US)
135AQI (US)
117AQI (US)
101AQI (US)
109AQI (US)
121AQI (US)
116AQI (US)
126AQI (US)
108AQI (US)
85AQI (US)
61AQI (US)
82AQI (US)
73AQI (US)
66AQI (US)
61AQI (US)
59AQI (US)
62AQI (US)
58AQI (US)
55AQI (US)
64AQI (US)
69AQI (US)
67AQI (US)
68AQI (US)
84AQI (US)
72AQI (US)
81AQI (US)
83AQI (US)
81AQI (US)
81AQI (US)
72AQI (US)
70AQI (US)
67AQI (US)
42AQI (US)
42AQI (US)
41AQI (US)
44AQI (US)
44AQI (US)
43AQI (US)
64AQI (US)
66AQI (US)
60AQI (US)
57AQI (US)
62AQI (US)
40AQI (US)
50AQI (US)
35AQI (US)
25AQI (US)
40AQI (US)
30AQI (US)
41AQI (US)
34AQI (US)
37AQI (US)
35AQI (US)
46AQI (US)
38AQI (US)
32AQI (US)
21AQI (US)
43AQI (US)
49AQI (US)
56AQI (US)
48AQI (US)
36AQI (US)
65AQI (US)
60AQI (US)
63AQI (US)
31AQI (US)
60AQI (US)
76AQI (US)
78AQI (US)
66AQI (US)
41AQI (US)
85AQI (US)
79AQI (US)
63AQI (US)
45AQI (US)
40AQI (US)
51AQI (US)
51AQI (US)
45AQI (US)
47AQI (US)
56AQI (US)
68AQI (US)
44AQI (US)
47AQI (US)
48AQI (US)
42AQI (US)
49AQI (US)
36AQI (US)
36AQI (US)
40AQI (US)
88AQI (US)
94AQI (US)
88AQI (US)
46AQI (US)
54AQI (US)
37AQI (US)
No. of days
202674AQI (US)
Highest AQI (US) recorded in
February94AQI (US)
Lowest AQI (US) recorded in
June37AQI (US)
202572AQI (US)
Highest AQI (US) recorded in
February101AQI (US)
Lowest AQI (US) recorded in
July55AQI (US)
202462AQI (US)
Highest AQI (US) recorded in
March96AQI (US)
Lowest AQI (US) recorded in
August36AQI (US)
202366AQI (US)
Highest AQI (US) recorded in
January100AQI (US)
Lowest AQI (US) recorded in
September43AQI (US)
202273AQI (US)
Highest AQI (US) recorded in
December106AQI (US)
Lowest AQI (US) recorded in
June47AQI (US)
202154AQI (US)
Highest AQI (US) recorded in
February96AQI (US)
Lowest AQI (US) recorded in
August35AQI (US)
202052AQI (US)
Highest AQI (US) recorded in
March80AQI (US)
Lowest AQI (US) recorded in
August35AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Colombo's annual 2026 AQI (US) (74) shows an average percentage change of 19.1% (worsened AQI (US)) compared to previous years: 2020 (52), 2021 (54), 2022 (73), 2023 (66), 2024 (62), 2025 (72).