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Air quality · Cortés Department, Honduras

San Pedro Sula Air Quality Index (AQI) today

Modelled estimate for 06:00 local time (UTC-6), refreshed 3 Nov, 07:52 UTC+0.

67 Moderate

Live estimate · modelled

US EPA AQI06:00 UTC-6, 3 Nov Main pollutant: PM2.5

Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

This page uses EPA’s NowCast, which follows the last few hours, as the US government’s AirNow does. On a 24-hour average of particles, as many apps show, it is 57.

Over the next 24 hours the model expects the AQI to range from 35 around 14:00 to 82 around 00:00 (4 Nov).

417th most polluted of 849 cities worldwide right now, 1st of 2 in Honduras.

What to do today

  • Long walk or run outside OK, lighter if very sensitive
  • Kids playing outside OK
  • Airing the house Open
  • Mask outdoors Not needed

Based on the US EPA’s health statement: “Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.” General guidance, not medical advice.

Last 24 hours and next 48

Past hours Forecast

07:00 · 29 08:00 · 29 09:00 · 28 10:00 · 24 11:00 · 21 12:00 · 23 13:00 · 27 14:00 · 30 15:00 · 31 16:00 · 32 17:00 · 31 18:00 · 30 19:00 · 43 20:00 · 57 21:00 · 69 22:00 · 80 23:00 · 82 00:00 · 80 01:00 · 77 02:00 · 73 03:00 · 70 04:00 · 68 05:00 · 66 06:00 · 67 07:00 · 70 08:00 · 62 09:00 · 55 10:00 · 50 11:00 · 43 12:00 · 39 13:00 · 36 14:00 · 35 15:00 · 39 16:00 · 40 17:00 · 38 18:00 · 38 19:00 · 52 20:00 · 58 21:00 · 64 22:00 · 69 23:00 · 77 00:00 · 82 01:00 · 81 02:00 · 78 03:00 · 74 04:00 · 71 05:00 · 69 06:00 · 68 07:00 · 70 08:00 · 59 09:00 · 52 10:00 · 42 11:00 · 36 12:00 · 32 13:00 · 29 14:00 · 32 15:00 · 35 16:00 · 35 17:00 · 34 18:00 · 36 19:00 · 53 20:00 · 63 21:00 · 74 22:00 · 84 23:00 · 87 00:00 · 85 01:00 · 82 Now

US EPA AQI per hour, UTC-6. Particles use EPA’s NowCast (a 12-hour weighted average), ozone and CO an 8-hour average. Lighter bars are the CAMS forecast.

Show as a table
TimeAQI
Mon 07:0029
Mon 08:0029
Mon 09:0028
Mon 10:0024
Mon 11:0021
Mon 12:0023
Mon 13:0027
Mon 14:0030
Mon 15:0031
Mon 16:0032
Mon 17:0031
Mon 18:0030
Mon 19:0043
Mon 20:0057
Mon 21:0069
Mon 22:0080
Mon 23:0082
Tue 00:0080
Tue 01:0077
Tue 02:0073
Tue 03:0070
Tue 04:0068
Tue 05:0066
Tue 06:00 · Now67
Tue 07:00 · Forecast70
Tue 08:00 · Forecast62
Tue 09:00 · Forecast55
Tue 10:00 · Forecast50
Tue 11:00 · Forecast43
Tue 12:00 · Forecast39
Tue 13:00 · Forecast36
Tue 14:00 · Forecast35
Tue 15:00 · Forecast39
Tue 16:00 · Forecast40
Tue 17:00 · Forecast38
Tue 18:00 · Forecast38
Tue 19:00 · Forecast52
Tue 20:00 · Forecast58
Tue 21:00 · Forecast64
Tue 22:00 · Forecast69
Tue 23:00 · Forecast77
Wed 00:00 · Forecast82
Wed 01:00 · Forecast81
Wed 02:00 · Forecast78
Wed 03:00 · Forecast74
Wed 04:00 · Forecast71
Wed 05:00 · Forecast69
Wed 06:00 · Forecast68
Wed 07:00 · Forecast70
Wed 08:00 · Forecast59
Wed 09:00 · Forecast52
Wed 10:00 · Forecast42
Wed 11:00 · Forecast36
Wed 12:00 · Forecast32
Wed 13:00 · Forecast29
Wed 14:00 · Forecast32
Wed 15:00 · Forecast35
Wed 16:00 · Forecast35
Wed 17:00 · Forecast34
Wed 18:00 · Forecast36
Wed 19:00 · Forecast53
Wed 20:00 · Forecast63
Wed 21:00 · Forecast74
Wed 22:00 · Forecast84
Wed 23:00 · Forecast87
Thu 00:00 · Forecast85
Thu 01:00 · Forecast82

Pollutants this hour

  • PM2.5 18.5 µg/m³ 24-hour mean 12.2 µg/m³ · within WHO’s 24-hour guideline (15) 67
  • PM10 19 µg/m³ 17
  • O₃ 8 µg/m³ 3
  • NO₂ 16 µg/m³ 8
  • SO₂ 3 µg/m³ 1
  • CO 1.08 mg/m³ 16

Modelled concentrations at the city’s location (CAMS). The sub-index uses the same averaging as the headline, so the highest one is the AQI.

Nearby cities

City AQI
Tegucigalpa Francisco Morazán Department 34
San Salvador El Salvador 53
Guatemala City Guatemala 62
Managua Nicaragua 17
Tuxtla Mexico 53
Mérida Mexico 54
Cancún Mexico 31

Where this number comes from

The Copernicus Atmosphere Monitoring Service (CAMS) forecasts air pollution worldwide on a grid (about 11 km over Europe, about 45 km elsewhere). We take the grid value at San Pedro Sula’s coordinates and score it with the US EPA’s method. It is a model, not a measurement: a nearby monitoring station can read quite differently, especially next to busy roads or during fires and dust storms.

Full methodology · Data: CAMS via Open-Meteo (CC BY 4.0); city list: GeoNames (CC BY 4.0).

  • Good 0–50
  • Moderate 51–100
  • Unhealthy for sensitive groups 101–150
  • Unhealthy 151–200
  • Very unhealthy 201–300
  • Hazardous 301–500

Questions

What is the AQI in San Pedro Sula right now?
67 on the US EPA scale (Moderate) at 06:00 UTC-6, 3 Nov. PM2.5 is the pollutant with the highest sub-index. This is a modelled estimate from the Copernicus Atmosphere Monitoring Service (CAMS), not a reading from a monitoring station.

Is it safe to exercise outside in San Pedro Sula today?
For most people, yes. The EPA’s statement for “Moderate”: Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. General guidance, not medical advice.

Will the air in San Pedro Sula get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 35 around 14:00 to 82 around 00:00 (4 Nov). Forecasts beyond a day are less certain.

How does San Pedro Sula compare with other cities?
Right now it is the 417th most polluted of 849 cities we track worldwide, and 1st of 2 in Honduras, all on the same US EPA scale.

Why does another app show a different AQI for San Pedro Sula?
Apps differ in source (government stations, low-cost sensors or a model like this one), in scale (US EPA, European, or a national index) and in averaging (hourly or NowCast, 8-hour, 24-hour). This page uses the US EPA AQI with EPA’s NowCast for particles, computed from the CAMS forecast for the city’s location.