Valparaiso, Valparaiso, Chile 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
Valparaiso, Valparaiso, Chile
AQI Trends: Highest and Lowest
Same Day Analysis (10th March):
On this day, AQI across the 5 years varied significantly: 2026 ranks the most lowest AQI at 33 of Good air quality, showing improvement over 2025, 2024, 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 9th Mar - 10th Mar 2026
Valparaiso, Valparaiso, Chile
7 AM9th Mar 2026
8 PM
6 AM10th Mar 2026
50AQI
32AQI
38AQI
18AQI
In the last 24 hours,
Valparaiso's AQI reached its highest point of 50 at 4 PM during the Day, while the lowest point, 18, was recorded at 5 AM during the Night between 9th Mar and 10th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Valparaiso, Valparaiso, Chile
19°C15/24°C
19°C15/23°C
19°C15/23°C
19°C14/25°C
20°C17/26°C
19°C16/23°C
18°C14/22°C
18°C13/22°C
20°C16/26°C
19°C15/24°C
18°C14/23°C
17°C14/20°C
18°C14/21°C
18°C15/21°C
18°C15/21°C
18°C15/21°C
18°C15/21°C
18°C15/23°C
19°C16/22°C
20°C16/24°C
19°C16/23°C
19°C16/22°C
18°C15/23°C
18°C16/22°C
17°C15/20°C
18°C15/21°C
17°C14/20°C
18°C15/20°C
19°C15/24°C
19°C16/22°C
61AQI
35AQI
55AQI
35AQI
2026 Days Vs Air Quality
Valparaiso, Valparaiso, Chile
84%
58
16%
11
Total number of days with different AQI categories in last 70 days in 2026 (295 days remaining)
Under WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2026, 84% of 70 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
Valparaiso, Valparaiso, Chile
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
59AQI (US)
24AQI (US)
28AQI (US)
28AQI (US)
29AQI (US)
38AQI (US)
25AQI (US)
35AQI (US)
46AQI (US)
47AQI (US)
39AQI (US)
44AQI (US)
41AQI (US)
42AQI (US)
33AQI (US)
49AQI (US)
52AQI (US)
64AQI (US)
72AQI (US)
76AQI (US)
49AQI (US)
54AQI (US)
53AQI (US)
47AQI (US)
50AQI (US)
47AQI (US)
40AQI (US)
46AQI (US)
46AQI (US)
49AQI (US)
44AQI (US)
46AQI (US)
54AQI (US)
50AQI (US)
51AQI (US)
49AQI (US)
43AQI (US)
41AQI (US)
47AQI (US)
47AQI (US)
43AQI (US)
46AQI (US)
46AQI (US)
53AQI (US)
54AQI (US)
44AQI (US)
45AQI (US)
46AQI (US)
47AQI (US)
47AQI (US)
44AQI (US)
41AQI (US)
35AQI (US)
40AQI (US)
42AQI (US)
41AQI (US)
33AQI (US)
32AQI (US)
33AQI (US)
40AQI (US)
48AQI (US)
42AQI (US)
40AQI (US)
38AQI (US)
33AQI (US)
35AQI (US)
35AQI (US)
39AQI (US)
33AQI (US)
45AQI (US)
44AQI (US)
38AQI (US)
No. of days
202644AQI (US)
Highest AQI (US) recorded in
January45AQI (US)
Lowest AQI (US) recorded in
March38AQI (US)
202553AQI (US)
Highest AQI (US) recorded in
June81AQI (US)
Lowest AQI (US) recorded in
January39AQI (US)
202449AQI (US)
Highest AQI (US) recorded in
May73AQI (US)
Lowest AQI (US) recorded in
November39AQI (US)
202354AQI (US)
Highest AQI (US) recorded in
May73AQI (US)
Lowest AQI (US) recorded in
December39AQI (US)
202251AQI (US)
Highest AQI (US) recorded in
May73AQI (US)
Lowest AQI (US) recorded in
November38AQI (US)
202155AQI (US)
Highest AQI (US) recorded in
July74AQI (US)
Lowest AQI (US) recorded in
February42AQI (US)
202049AQI (US)
Highest AQI (US) recorded in
May63AQI (US)
Lowest AQI (US) recorded in
November40AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Valparaiso's annual 2026 AQI (US) (44) shows an average percentage change of -15.2% (improved AQI (US)) compared to previous years: 2020 (49), 2021 (55), 2022 (51), 2023 (54), 2024 (49), 2025 (53).