Augusta Air Quality in September
Across 2019–2025, Augusta's September air quality had a median AQI of 52 (Moderate) over 209 monitored days in the Augusta-Richmond County, GA-SC area. 0.0% of September days (0 of 209) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 82.8% of days. The cleanest September on record here was 2022 (median AQI 45, 0 days above 100) and the worst was 2019 (median 56, 0 days above 100, peak AQI 97).
- Good: 44.0%
- Moderate: 56.0%
- Unhealthy for Sensitive Groups: 0.0%
- Unhealthy or worse: 0.0%
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How is the air in Augusta in September?
Moderate on a typical day: median AQI 52 across 2019–2025, with 0.0% of September days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓44.0% of September days were Good (AQI 0–50), 56.0% Moderate (51–100).
- ✓0 days of 209 reached AQI 101+; the September peak was 97.
- ✓Best September: 2022; worst September: 2019.
Frequently asked questions
What is the air quality like in Augusta in September?▾
Across 2019–2025, the median daily AQI in Augusta in September was 52 (Moderate). 44.0% of days were Good, 56.0% Moderate, and 0.0% reached Unhealthy for Sensitive Groups or worse, based on 209 monitored days in EPA's Air Quality System.
Is September a good time for outdoor exercise in Augusta?▾
A typical September day in Augusta is Moderate (median AQI 52): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and fewer than 1% of September days reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes Augusta's September air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 82.8% of September days in Augusta. The highest September AQI recorded in 2019–2025 was 97 (Moderate), in 2019.
Augusta September air quality, year by year
Augusta September air quality by year (Augusta-Richmond County, GA-SC, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019worst | 30 | 56 | 0 | 97 | PM2.5 |
| 2020 | 30 | 51 | 0 | 78 | PM2.5 |
| 2021 | 30 | 53 | 0 | 74 | PM2.5 |
| 2022cleanest | 30 | 45 | 0 | 77 | PM2.5 |
| 2023 | 30 | 52 | 0 | 63 | PM2.5 |
| 2024 | 29 | 48 | 0 | 61 | PM2.5 |
| 2025 | 30 | 53 | 0 | 79 | PM2.5 |
What September air means in Augusta
A typical September day in Augusta is Moderate (median AQI 52): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and fewer than 1% of September days reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
September's median AQI of 52 is in line with Augusta's whole-year median of 52, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median September AQI across every EPA metro area (100,699 metro-days, 2019–2025) is 43, so Augusta runs above the national September norm; 0.0% of its September days topped AQI 100 versus 2.7% nationally (below average).
September is part of Augusta's fall season (September, October, November); the fall page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Augusta
The latest EPA AirNow observation puts Augusta's AQI at 49 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current Augusta air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Augusta-Richmond County, GA-SC), 2019–2025. Daily AQI per CBSA is the highest AQI reported by any monitor in the area that day; the defining parameter is the pollutant that set it. Month and season statistics pool every such day in the period across all years listed. Retrieved 2026-09-09.