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

The latest data Last 7 days
Latest air quality data: San Salvador
Locations: San Salvador Santa Ana » San Miguel » Apopa »
Pollution and air quality forecast for San Salvador. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for San Salvador:
  1. particulate matter (PM2.5) dust - 13 (Moderate)
  2. particulate matter (PM10) suspended dust - 14 (Good)
  3. ozone (O3) - 52 (Good)
  4. nitrogen dioxide (NO2) - 16 (Good)
  5. sulfur dioxide (SO2) - 2 (Good)
  6. carbon monoxide (CO) - 377 (Good)
Real-time Air Quality Index (AQI) for San Salvador, Wednesday, August 26, 2026: 2.

air quality index: 1
AQI 2 Moderate

What is the air quality in San Salvador today? Is the air polluted in San Salvador?. Is there smog?

Today (Wednesday, August 26, 2026) air quality is moderate in San Salvador. Some pollutants in San Salvador may slightly affect very few hypersensitive individuals. Air pollutants in San Salvador may cause minor breathing discomfort to sensitive people.


What is the current level of PM2.5 in San Salvador? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 13 (Moderate) For comparison, the highest level of PM2.5 in San Salvador in the last 7 days was: 23 (Thursday, August 20, 2026) and the lowest: 10 (Wednesday, August 26, 2026).

What is the level of PM10 today in San Salvador? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in San Salvador is: 14 (Good)

How is the O3 level today in San Salvador? (ozone (O3))
52 (Good)

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

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

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



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

PM2,5 13 (Moderate)

PM10 14 (Good)

O3 52 (Good)

NO2 16 (Good)

SO2 2 (Good)

CO 377 (Good)

Data on air pollution from recent days in San Salvador

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 10
Good		 13
Moderate		 12
Good		 10
Good		 10
Good		 13
Moderate		 23
Moderate		 17
Moderate
pm10 11
Good		 15
Good		 16
Good		 13
Good		 12
Good		 16
Good		 32
Moderate		 23
Moderate
o3 51
Good		 54
Good		 71
Moderate		 60
Good		 58
Good		 72
Moderate		 64
Good		 51
Good
no2 12
Good		 12
Good		 9
Good		 7
Good		 7
Good		 9
Good		 15
Good		 15
Good
so2 2
Good		 2
Good		 2
Good		 2
Good		 2
Good		 2
Good		 3
Good		 2
Good
co 273
Good		 370
Good		 251
Good		 249
Good		 240
Good		 389
Good		 586
Good		 393
Good
data source »

San Salvador

Wednesday, August 26, 2026 at 7:00 PM

PM2,5 13 (Good)

particulate matter (PM2.5) dust

PM10 14 (Good)

particulate matter (PM10) suspended dust

O3 52 (Good)

ozone (O3)

NO2 16 (Good)

nitrogen dioxide (NO2)

SO2 1.8 (Good)

sulfur dioxide (SO2)

CO 377 (Good)

carbon monoxide (CO)

San Salvador

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 17 23 13 10 9.9 12 13 10
pm10 23 32 16 12 13 16 15 11
o3 51 64 72 58 60 71 54 51
no2 15 15 8.6 7.4 6.6 9 12 12
so2 2.4 2.6 2.3 1.9 2 2.5 2.1 2.1
co 393 586 389 240 249 251 370 273

* 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 San Salvador — compare nearby locations.

Frequently asked questions

Is the air safe to breathe in San Salvador today?
The current average PM2.5 across San Salvador is about 13 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.
What is the current PM2.5 level in San Salvador?
Right now PM2.5 in San Salvador averages about 13 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 San Salvador?
Over the past week, the highest daily PM2.5 in San Salvador was recorded on Thursday, August 20 (about 23 µg/m³).
What is the UV index in San Salvador today?
The UV index in San Salvador today is 9.1 (very high) — unprotected fair skin can burn in about 20 minutes.
Does today's wind help disperse smog in San Salvador?
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.