Air Quality in Santa Ana Today — Live AQI, PM2.5 & PM10, Smog, Weather and Forecast

The latest data Last 7 days
Latest air quality data: Santa Ana
Locations: San Salvador » Santa Ana San Miguel » Apopa »
Pollution and air quality forecast for Santa Ana. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Santa Ana:
  1. particulate matter (PM2.5) dust - 9 (Good)
  2. particulate matter (PM10) suspended dust - 9 (Good)
  3. ozone (O3) - 42 (Good)
  4. nitrogen dioxide (NO2) - 11 (Good)
  5. sulfur dioxide (SO2) - 1 (Good)
  6. carbon monoxide (CO) - 285 (Good)
Real-time Air Quality Index (AQI) for Santa Ana, Wednesday, August 26, 2026: 1.

air quality index: 0
AQI 1 Good

What is the air quality in Santa Ana today? Is the air polluted in Santa Ana?. Is there smog?

Today (Wednesday, August 26, 2026) air quality is good. The air quality has no effect on health. Everyone can continue their outdoor activities normally in Santa Ana.


What is the current level of PM2.5 in Santa Ana? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 9 (Good) For comparison, the highest level of PM2.5 in Santa Ana in the last 7 days was: 16 (Thursday, August 20, 2026) and the lowest: 7 (Wednesday, August 26, 2026).

What is the level of PM10 today in Santa Ana? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Santa Ana is: 9 (Good)

How is the O3 level today in Santa Ana? (ozone (O3))
42 (Good)

How high is the level of NO2? (nitrogen dioxide (NO2))
11 (Good)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
1 (Good)

How high is the CO level? (carbon monoxide (CO))
285 (Good)



Current data Wednesday, August 26, 2026 at 7:00 PM

PM2,5 9 (Good)

PM10 9 (Good)

O3 42 (Good)

NO2 11 (Good)

SO2 1 (Good)

CO 285 (Good)

Data on air pollution from recent days in Santa Ana

index 2026-08-26 2026-08-25 2026-08-24 2026-08-23 2026-08-22 2026-08-21 2026-08-20 2026-08-19
pm25 7
Good		 10
Good		 12
Good		 10
Good		 7
Good		 10
Good		 16
Moderate		 14
Moderate
pm10 8
Good		 14
Good		 16
Good		 14
Good		 8
Good		 11
Good		 22
Moderate		 20
Moderate
o3 42
Good		 48
Good		 55
Good		 43
Good		 42
Good		 52
Good		 53
Good		 47
Good
no2 7
Good		 7
Good		 7
Good		 6
Good		 6
Good		 8
Good		 8
Good		 7
Good
so2 1
Good		 1
Good		 2
Good		 1
Good		 1
Good		 1
Good		 1
Good		 1
Good
co 166
Good		 183
Good		 161
Good		 131
Good		 153
Good		 166
Good		 174
Good		 188
Good
data source »

Santa Ana

Wednesday, August 26, 2026 at 7:00 PM

PM2,5 9.1 (Good)

particulate matter (PM2.5) dust

PM10 9.3 (Good)

particulate matter (PM10) suspended dust

O3 42 (Good)

ozone (O3)

NO2 11 (Good)

nitrogen dioxide (NO2)

SO2 1.2 (Good)

sulfur dioxide (SO2)

CO 285 (Good)

carbon monoxide (CO)

Santa Ana

index 2026-08-19 2026-08-20 2026-08-21 2026-08-22 2026-08-23 2026-08-24 2026-08-25 2026-08-26
pm25 14 16 9.6 6.9 9.8 12 10 7
pm10 20 22 11 7.6 14 16 14 7.6
o3 47 53 52 42 43 55 48 42
no2 7.4 7.9 7.6 5.8 5.9 7.3 6.8 6.8
so2 1.4 1.5 1.4 1.1 1.2 1.5 1.3 1.1
co 188 174 166 153 131 161 183 166

* Pollution data source: https://openaq.org () The data is licensed under CC-By 4.0

🌦️ Weather · 16-day Forecast — El Salvador

🌦️ WEATHER · 16-DAY FORECASTEl Salvador🌧️31°RainToday · ↑33° ↓20°💨 2 km/h · 💧 54%Mon24.08🌧️33°20°Tue25.08🌧️32°22°Wed26.08🌧️34°20°Thu27.08🌧️37°19°Fri28.08☁️37°19°Sat29.08🌧️34°20°Sun30.08🌧️34°20°Mon31.08🌧️34°20°Tue1.09🌧️34°20°Wed2.09🌧️35°20°Thu3.09🌧️35°20°Fri4.09🌧️26°19°Sat5.09🌧️33°20°Sun6.09🌧️34°20°Mon7.09☁️31°20°Tue8.09🌧️32°21°pollution-alert.com · August 27, 2026

16-day weather forecast for El Salvador: today around 33°C (rain), lows near 20°C. Daily temperature and conditions, updated every day. Wind is light today (about 7 km/h) — pollutants can build up near the ground.

☀️ UV Index · 16-day Forecast — El Salvador

☀️ UV INDEX · 16-DAY FORECASTEl Salvador03681111+9.1UV VERY HIGHtoday, day maxSPF 50, long sleeves and shade between 10:00-16:00.⏱ Unprotected fair skin can burn in about 20 min9Wed26.089Thu27.089Fri28.089Sat29.089Sun30.089Mon31.089Tue1.0910Wed2.099Thu3.097Fri4.0910Sat5.098Sun6.097Mon7.098Tue8.099Wed9.098Thu10.090-2 low3-5 moderate6-7 high8-10 very high11+ extremepollution-alert.com · August 27, 2026

The UV index in El Salvador today is 9.1 (very high) — unprotected fair skin can burn in about 20 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Santa Ana — compare nearby locations.

Frequently asked questions

Is the air safe to breathe in Santa Ana today?
The current average PM2.5 across Santa Ana is about 9 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.
What is the current PM2.5 level in Santa Ana?
Right now PM2.5 in Santa Ana averages about 9 µg/m³ (“Good”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.
Which day last week had the worst air in Santa Ana?
Over the past week, the highest daily PM2.5 in Santa Ana was recorded on Thursday, August 20 (about 16 µg/m³).
What is the UV index in Santa Ana today?
The UV index in Santa Ana today is 9.1 (very high) — unprotected fair skin can burn in about 20 minutes.
Does today's wind help disperse smog in Santa Ana?
Wind is light today (about 7 km/h) — pollutants can build up near the ground.
How is air quality measured?
Air quality here is based on PM2.5 — the concentration of fine particulate matter in µg/m³. Lower values mean cleaner air. Data is updated daily from Open-Meteo.