Tampa Air Quality in September
Across 2019–2025, Tampa's September air quality had a median AQI of 46 (Good) over 210 monitored days in the Tampa-St. Petersburg-Clearwater, FL area. 0.0% of September days (0 of 210) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 59.5% of days. The cleanest September on record here was 2022 (median AQI 40, 0 days above 100) and the worst was 2021 (median 52, 0 days above 100, peak AQI 77).
- Good: 64.3%
- Moderate: 35.7%
- Unhealthy for Sensitive Groups: 0.0%
- Unhealthy or worse: 0.0%
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How is the air in Tampa in September?
Good on a typical day: median AQI 46 across 2019–2025, with 0.0% of September days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓64.3% of September days were Good (AQI 0–50), 35.7% Moderate (51–100).
- ✓0 days of 210 reached AQI 101+; the September peak was 93.
- ✓Best September: 2022; worst September: 2021.
Frequently asked questions
What is the air quality like in Tampa in September?▾
Across 2019–2025, the median daily AQI in Tampa in September was 46 (Good). 64.3% of days were Good, 35.7% Moderate, and 0.0% reached Unhealthy for Sensitive Groups or worse, based on 210 monitored days in EPA's Air Quality System.
Is September a good time for outdoor exercise in Tampa?▾
A typical September day in Tampa sits in the Good range (median AQI 46), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of September days reached AQI 101+ in 2019–2025.
Which pollutant causes Tampa's September air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 59.5% of September days in Tampa. The highest September AQI recorded in 2019–2025 was 93 (Moderate), in 2021.
Tampa September air quality, year by year
Tampa September air quality by year (Tampa-St. Petersburg-Clearwater, FL, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 30 | 48 | 0 | 93 | PM2.5 |
| 2020 | 30 | 45 | 0 | 77 | PM2.5 |
| 2021worst | 30 | 52 | 0 | 77 | PM2.5 |
| 2022cleanest | 30 | 40 | 0 | 73 | PM2.5 |
| 2023 | 30 | 50 | 0 | 90 | O3 |
| 2024 | 30 | 44 | 0 | 58 | PM2.5 |
| 2025 | 30 | 44 | 0 | 77 | O3 |
What September air means in Tampa
A typical September day in Tampa sits in the Good range (median AQI 46), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of September days reached AQI 101+ in 2019–2025.
September's median AQI of 46 is below Tampa's whole-year median of 51, making it one of the area's cleaner periods. Nationally, the median September AQI across every EPA metro area (100,699 metro-days, 2019–2025) is 43, so Tampa runs in line with the national September norm; 0.0% of its September days topped AQI 100 versus 2.7% nationally (below average).
September is part of Tampa's fall season (September, October, November); the fall page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Tampa
The latest EPA AirNow observation puts Tampa's AQI at 45 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current Tampa air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Tampa-St. Petersburg-Clearwater, FL), 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.