Seabrook Beach, New Hampshire Air Quality
Seabrook Beach has a median AQI of 39, earning an air quality grade of A — excellent air quality that ranks better than 65% of US cities. Air quality has remained relatively stable over the past decade. Ground-level ozone is the primary concern, typically peaking on warm sunny days due to vehicle and industrial emissions. In 2025, Seabrook Beach recorded 226 good air quality days (82% of monitored days) and 1 unhealthy days.
Population: 1,001 • County: Rockingham
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Quick Facts
| Current AQI | 12 — Good |
| Air Quality Grade | A |
| Median AQI (2025) | 39 |
| vs. U.S. Cities | Better than 65% |
| Primary Pollutant | Ozone |
| Unhealthy Days/Year | 1 |
| 10-Year Trend | → Stable |
| Data Source | EPA AirNow |
Health Recommendation
Air quality is satisfactory, and air pollution poses little or no risk.
It's a great day to be active outside!
5-Day AQI Forecast
Last 30 Days
Current Pollutant Levels
Real-time data from EPA AirNow
AQI Trend (10 Years)
Air Quality Days by Year
2025 Air Quality Summary
Primary Pollutant Days (2025)
Days when each pollutant was the primary driver of AQI. Learn about pollutants →
Frequently Asked Questions About Seabrook Beach Air Quality
What is the air quality in Seabrook Beach today?
The current AQI in Seabrook Beach is 12, which is rated "Good". Air quality is satisfactory, and air pollution poses little or no risk.
Is air quality in Seabrook Beach getting better or worse?
Air quality in Seabrook Beach has remained relatively stable over the past decade, with a median AQI of around 39.
What is the most common air pollutant in Seabrook Beach?
Ozone is the primary air pollutant in Seabrook Beach, responsible for the most air quality-impacted days in 2025. Ground-level ozone forms when sunlight reacts with vehicle and industrial emissions on warm days.
How many unhealthy air days does Seabrook Beach have per year?
In 2025, Seabrook Beach had 1 days when air quality was unhealthy or unhealthy for sensitive groups (AQI above 100). There were 226 good days and 47 moderate days out of 274 days monitored.
What air quality grade does Seabrook Beach receive?
Seabrook Beach receives an air quality grade of A, placing it better than 65% of US cities. This grade is based on a median AQI of 39 for 2025, derived from EPA monitoring data.
Air Quality Grade
Better than 65% of US cities
Nearby Cities
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National Rankings
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Best Air Quality Cities →All city rankingsRecommended Air Purifiers for Seabrook Beach
Based on your area's air quality (median AQI: 39), we recommend these air purifiers to help protect your health indoors.
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