Hour-by-hour environmental exposure forecast for New York City. Know when to go out and when to stay in.

Air Quality Index 45
Temperature190.2°F
Humidity28.0%
Wind Speed4.7 mph
NOTICE: Safety and air quality are subjective and fluctuate in real-time. This report is a data-driven starting point. Always exercise personal judgment, stay aware of your surroundings, and consult official local law enforcement or health department resources for real-time safety and health advice.
Good 45 AQI · Total Lung Freedom Updated: May 17, 1:29 PM

The inland setting means local environmental conditions are shaped more by urban density than coastal influences.

In line with average conditions across New York City

24-Hour AQI Trend

AQI trend chart — current reading: 45 (Total Lung Freedom). May 17, 1:29 PM.

Pollutant Breakdown

PM2.5 7.30 µg/m³ Fine particulate matter — penetrates deep into lungs
PM10 7.70 µg/m³ Coarse particulate matter — dust and pollen
NO₂ 4.90 ppb Nitrogen dioxide — traffic and combustion marker
O₃ 153.00 ppb Ground-level ozone — forms in sunlight from pollutants

Peer Comparison

In line with average conditions across New York City

New York City
45

Why New York City's Air Is What It Is

New York City sits in an inland urban setting where local environmental conditions are shaped primarily by density and development patterns. Temperature swings between day and night can be more pronounced than in coastal areas.

Historical Context

Current AQI of 45 reflects recent monitoring data. Local conditions can shift with weather patterns, traffic volume, and seasonal factors.

24-Hour Hourly Forecast

Best window: 10:00 (AQI 43) · Peak AQI: 112 at 19:00

TimeAQITemp (°F)HumidityWind (mph)PM2.5PM10
00:0056159.846%4.89.19.9
01:0054158.945%4.99.49.9
02:0053158.947%4.910.711.1
03:0051156.751%3.612.112.7
04:0050152.855%2.512.513.4
05:0049151.061%2.711.312.1
06:0048148.367%2.810.110.7
07:0046153.570%2.69.710.2
08:0044158.069%4.69.19.6
09:0044163.667%5.38.89.3
10:0043168.863%3.78.99.4
11:0044175.552%3.08.69.3
12:0044182.740%2.77.98.5
13:0045188.630%4.57.37.7
14:0050193.125%5.26.87.2
15:0068194.924%6.86.37.0
16:0085192.631%5.87.17.9
17:00100186.441%6.57.58.5
18:00109180.347%6.39.210.4
19:00112175.650%5.412.113.2
20:00106167.556%4.515.116.1
21:0094162.060%3.217.518.6
22:0076158.964%1.920.121.1
23:0053155.868%1.622.423.5

Air quality is forecast to be good for most of the day. Great time for outdoor activities!

When to Go Outside in New York City. Timing is everything when it comes to air quality. The forecast for New York City shows the cleanest air during 10:00 (AQI 43) and the most challenging conditions around 19:00 (AQI 112). Many find this information helpful for planning outdoor activities. Health Advisory for New York City. Based on current forecasts, Air quality is forecast to be good for most of the day. Great time for outdoor activities! Keep monitoring the live data for real-time changes.

Explore More in New York City

Disclaimer: The information provided on this site is for informational purposes only and does not constitute professional advice. Air quality, safety, and environmental data are subject to change and may not reflect real-time conditions. Always verify with official local sources before making decisions that affect your health or safety.