Heyuan, Guangdong Province, China 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
Heyuan, Guangdong Province, China
AQI Trends: Highest and Lowest
Same Day Analysis (3rd August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 52 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Heyuan, Guangdong Province, China
5 AM3rd Aug 2025
7 PM
4 AM4th Aug 2025
56AQI
38AQI
57AQI
51AQI
In the last 24 hours,
Heyuan's AQI reached its highest point of 57 at 2 AM during the Night, while the lowest point, 38, was recorded at 5 PM during the Day between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Heyuan, Guangdong Province, China
29°C25/35°C
28°C22/35°C
28°C22/36°C
29°C22/36°C
28°C23/35°C
24°C22/27°C
23°C21/25°C
27°C22/31°C
27°C22/33°C
27°C23/33°C
28°C23/33°C
30°C26/35°C
30°C25/36°C
29°C24/35°C
27°C22/32°C
25°C24/28°C
25°C23/28°C
25°C22/28°C
27°C24/32°C
28°C23/34°C
29°C24/36°C
29°C23/35°C
29°C23/35°C
27°C24/32°C
28°C23/34°C
28°C24/36°C
27°C23/33°C
27°C22/32°C
28°C23/34°C
25°C23/29°C
--°C/°C
56AQI
51AQI
55AQI
55AQI
2025 Days Vs Air Quality
Heyuan, Guangdong Province, China
45%
30
55%
37
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Under WHO’s Safe Air Quality Limits: 45%
Health Risk Level:
Significant
In 2025, 45% of 216 days were within WHO’s safe air quality limits, and 55% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
Heyuan, Guangdong Province, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
32AQI
48AQI
53AQI
58AQI
56AQI
45AQI
60AQI
59AQI
64AQI
65AQI
59AQI
61AQI
59AQI
54AQI
53AQI
50AQI
47AQI
44AQI
43AQI
40AQI
46AQI
44AQI
42AQI
39AQI
37AQI
40AQI
42AQI
46AQI
46AQI
44AQI
43AQI
43AQI
42AQI
43AQI
42AQI
46AQI
52AQI
55AQI
53AQI
59AQI
60AQI
61AQI
54AQI
50AQI
52AQI
53AQI
55AQI
57AQI
58AQI
61AQI
59AQI
56AQI
50AQI
48AQI
46AQI
47AQI
49AQI
52AQI
54AQI
56AQI
53AQI
54AQI
54AQI
52AQI
56AQI
52AQI
52AQI
44AQI
49AQI
53AQI
53AQI
No. of days
202551AQI
Highest AQI recorded in
August53AQI
Lowest AQI recorded in
May44AQI
Most & Least Polluted Years Over the Last 1 Years
Heyuan's annual 2025 AQI (51) shows an average percentage change of NaN% (improved AQI) compared to previous years: .