Port Isabel, Texas, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Port Isabel, Texas, United States
AQI Trends: Highest and Lowest
Same Day Analysis (9th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 60 of Moderate air quality on the same day.
Day & Night AQI Trend: 8th Aug - 9th Aug 2026
Port Isabel, Texas, United States
6 AM8th Aug 2026
8 PM
5 AM9th Aug 2026
52AQI
38AQI
73AQI
38AQI
In the last 24 hours,
Port Isabel's AQI reached its highest point of 73 at 5 AM during the Night, while the lowest point, 38, was recorded at 11 PM during the Night between 8th Aug and 9th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Port Isabel, Texas, United States
28°C27/28°C
27°C27/28°C
27°C27/28°C
27°C27/28°C
27°C27/28°C
28°C27/28°C
28°C27/29°C
28°C27/28°C
28°C27/29°C
28°C27/29°C
27°C27/28°C
27°C27/28°C
27°C27/29°C
27°C27/28°C
27°C27/28°C
27°C27/28°C
27°C27/28°C
27°C27/28°C
27°C27/28°C
27°C27/28°C
27°C27/28°C
27°C27/28°C
28°C27/29°C
28°C27/28°C
28°C28/29°C
28°C27/29°C
27°C27/28°C
27°C27/28°C
27°C27/28°C
27°C27/28°C
59AQI
52AQI
57AQI
52AQI
2026 Days Vs Air Quality
Port Isabel, Texas, United States
81%
177
18%
40
0.4%
1
Total number of days with different AQI categories in last 221 days in 2026 (144 days remaining)
Under WHO’s Safe Air Quality Limits: 81%
Health Risk Level:
Low
In 2026, 81% of 221 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Port Isabel, Texas, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
47AQI (US)
43AQI (US)
83AQI (US)
56AQI (US)
60AQI (US)
97AQI (US)
77AQI (US)
71AQI (US)
106AQI (US)
68AQI (US)
21AQI (US)
21AQI (US)
27AQI (US)
26AQI (US)
32AQI (US)
41AQI (US)
49AQI (US)
39AQI (US)
46AQI (US)
42AQI (US)
41AQI (US)
34AQI (US)
30AQI (US)
25AQI (US)
51AQI (US)
26AQI (US)
23AQI (US)
28AQI (US)
32AQI (US)
43AQI (US)
30AQI (US)
29AQI (US)
33AQI (US)
33AQI (US)
29AQI (US)
28AQI (US)
40AQI (US)
32AQI (US)
27AQI (US)
33AQI (US)
33AQI (US)
28AQI (US)
34AQI (US)
41AQI (US)
53AQI (US)
37AQI (US)
41AQI (US)
49AQI (US)
42AQI (US)
62AQI (US)
53AQI (US)
46AQI (US)
53AQI (US)
39AQI (US)
35AQI (US)
37AQI (US)
40AQI (US)
37AQI (US)
38AQI (US)
41AQI (US)
44AQI (US)
41AQI (US)
38AQI (US)
39AQI (US)
38AQI (US)
40AQI (US)
32AQI (US)
30AQI (US)
44AQI (US)
30AQI (US)
28AQI (US)
28AQI (US)
29AQI (US)
36AQI (US)
65AQI (US)
26AQI (US)
28AQI (US)
32AQI (US)
28AQI (US)
26AQI (US)
24AQI (US)
38AQI (US)
30AQI (US)
35AQI (US)
31AQI (US)
27AQI (US)
23AQI (US)
34AQI (US)
45AQI (US)
33AQI (US)
33AQI (US)
41AQI (US)
35AQI (US)
27AQI (US)
31AQI (US)
24AQI (US)
23AQI (US)
29AQI (US)
24AQI (US)
28AQI (US)
32AQI (US)
27AQI (US)
29AQI (US)
28AQI (US)
36AQI (US)
34AQI (US)
35AQI (US)
31AQI (US)
20AQI (US)
25AQI (US)
28AQI (US)
36AQI (US)
52AQI (US)
38AQI (US)
42AQI (US)
49AQI (US)
34AQI (US)
34AQI (US)
21AQI (US)
26AQI (US)
21AQI (US)
26AQI (US)
35AQI (US)
46AQI (US)
37AQI (US)
35AQI (US)
30AQI (US)
25AQI (US)
28AQI (US)
32AQI (US)
23AQI (US)
42AQI (US)
50AQI (US)
58AQI (US)
58AQI (US)
59AQI (US)
52AQI (US)
43AQI (US)
51AQI (US)
46AQI (US)
44AQI (US)
45AQI (US)
20AQI (US)
20AQI (US)
25AQI (US)
18AQI (US)
15AQI (US)
15AQI (US)
24AQI (US)
33AQI (US)
17AQI (US)
14AQI (US)
15AQI (US)
27AQI (US)
30AQI (US)
28AQI (US)
29AQI (US)
20AQI (US)
19AQI (US)
22AQI (US)
25AQI (US)
23AQI (US)
20AQI (US)
16AQI (US)
15AQI (US)
36AQI (US)
29AQI (US)
25AQI (US)
24AQI (US)
30AQI (US)
42AQI (US)
50AQI (US)
38AQI (US)
45AQI (US)
41AQI (US)
38AQI (US)
55AQI (US)
43AQI (US)
29AQI (US)
28AQI (US)
21AQI (US)
20AQI (US)
20AQI (US)
27AQI (US)
33AQI (US)
30AQI (US)
32AQI (US)
27AQI (US)
38AQI (US)
31AQI (US)
41AQI (US)
66AQI (US)
56AQI (US)
53AQI (US)
51AQI (US)
67AQI (US)
71AQI (US)
64AQI (US)
62AQI (US)
67AQI (US)
62AQI (US)
65AQI (US)
59AQI (US)
46AQI (US)
51AQI (US)
61AQI (US)
52AQI (US)
52AQI (US)
48AQI (US)
49AQI (US)
50AQI (US)
59AQI (US)
68AQI (US)
51AQI (US)
48AQI (US)
49AQI (US)
46AQI (US)
60AQI (US)
46AQI (US)
39AQI (US)
34AQI (US)
32AQI (US)
35AQI (US)
29AQI (US)
46AQI (US)
53AQI (US)
No. of days
202638AQI (US)
Highest AQI (US) recorded in
August53AQI (US)
Lowest AQI (US) recorded in
June29AQI (US)
202552AQI (US)
Highest AQI (US) recorded in
October76AQI (US)
Lowest AQI (US) recorded in
February38AQI (US)
202462AQI (US)
Highest AQI (US) recorded in
May123AQI (US)
Lowest AQI (US) recorded in
August38AQI (US)
202343AQI (US)
Highest AQI (US) recorded in
July57AQI (US)
Lowest AQI (US) recorded in
September24AQI (US)
202240AQI (US)
Highest AQI (US) recorded in
May56AQI (US)
Lowest AQI (US) recorded in
October28AQI (US)
202142AQI (US)
Highest AQI (US) recorded in
April58AQI (US)
Lowest AQI (US) recorded in
November26AQI (US)
202045AQI (US)
Highest AQI (US) recorded in
April68AQI (US)
Lowest AQI (US) recorded in
December31AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Port Isabel's annual 2026 AQI (US) (38) shows an average percentage change of -17.8% (improved AQI (US)) compared to previous years: 2020 (45), 2021 (42), 2022 (40), 2023 (43), 2024 (62), 2025 (52).