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Air quality · Sinaloa, Mexico

Culiacán Air Quality Index (AQI) today

Modelled estimate for 05:00 local time (UTC-7), refreshed 3 Nov, 07:52 UTC+0.

55 Moderate

Live estimate · modelled

US EPA AQI05:00 UTC-7, 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 52.

Over the next 24 hours the model expects the AQI to range from 37 around 13:00 to 62 around 01:00 (4 Nov).

568th most polluted of 849 cities worldwide right now, 11th of 22 in Mexico.

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

06:00 · 50 07:00 · 52 08:00 · 52 09:00 · 51 10:00 · 49 11:00 · 46 12:00 · 43 13:00 · 40 14:00 · 37 15:00 · 37 16:00 · 38 17:00 · 38 18:00 · 43 19:00 · 49 20:00 · 52 21:00 · 53 22:00 · 54 23:00 · 56 00:00 · 57 01:00 · 57 02:00 · 57 03:00 · 57 04:00 · 56 05:00 · 55 06:00 · 55 07:00 · 56 08:00 · 57 09:00 · 56 10:00 · 53 11:00 · 47 12:00 · 39 13:00 · 37 14:00 · 42 15:00 · 45 16:00 · 47 17:00 · 47 18:00 · 45 19:00 · 44 20:00 · 51 21:00 · 53 22:00 · 56 23:00 · 58 00:00 · 60 01:00 · 62 02:00 · 62 03:00 · 62 04:00 · 62 05:00 · 61 06:00 · 61 07:00 · 62 08:00 · 62 09:00 · 61 10:00 · 58 11:00 · 53 12:00 · 47 13:00 · 41 14:00 · 46 15:00 · 54 16:00 · 64 17:00 · 71 18:00 · 64 19:00 · 54 20:00 · 58 21:00 · 62 22:00 · 65 23:00 · 68 00:00 · 70 Now

US EPA AQI per hour, UTC-7. 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 06:0050
Mon 07:0052
Mon 08:0052
Mon 09:0051
Mon 10:0049
Mon 11:0046
Mon 12:0043
Mon 13:0040
Mon 14:0037
Mon 15:0037
Mon 16:0038
Mon 17:0038
Mon 18:0043
Mon 19:0049
Mon 20:0052
Mon 21:0053
Mon 22:0054
Mon 23:0056
Tue 00:0057
Tue 01:0057
Tue 02:0057
Tue 03:0057
Tue 04:0056
Tue 05:00 · Now55
Tue 06:00 · Forecast55
Tue 07:00 · Forecast56
Tue 08:00 · Forecast57
Tue 09:00 · Forecast56
Tue 10:00 · Forecast53
Tue 11:00 · Forecast47
Tue 12:00 · Forecast39
Tue 13:00 · Forecast37
Tue 14:00 · Forecast42
Tue 15:00 · Forecast45
Tue 16:00 · Forecast47
Tue 17:00 · Forecast47
Tue 18:00 · Forecast45
Tue 19:00 · Forecast44
Tue 20:00 · Forecast51
Tue 21:00 · Forecast53
Tue 22:00 · Forecast56
Tue 23:00 · Forecast58
Wed 00:00 · Forecast60
Wed 01:00 · Forecast62
Wed 02:00 · Forecast62
Wed 03:00 · Forecast62
Wed 04:00 · Forecast62
Wed 05:00 · Forecast61
Wed 06:00 · Forecast61
Wed 07:00 · Forecast62
Wed 08:00 · Forecast62
Wed 09:00 · Forecast61
Wed 10:00 · Forecast58
Wed 11:00 · Forecast53
Wed 12:00 · Forecast47
Wed 13:00 · Forecast41
Wed 14:00 · Forecast46
Wed 15:00 · Forecast54
Wed 16:00 · Forecast64
Wed 17:00 · Forecast71
Wed 18:00 · Forecast64
Wed 19:00 · Forecast54
Wed 20:00 · Forecast58
Wed 21:00 · Forecast62
Wed 22:00 · Forecast65
Wed 23:00 · Forecast68
Thu 00:00 · Forecast70

Pollutants this hour

  • PM2.5 10.9 µg/m³ 24-hour mean 9.4 µg/m³ · within WHO’s 24-hour guideline (15) 55
  • PM10 12 µg/m³ 12
  • O₃ 7 µg/m³ 4
  • NO₂ 26 µg/m³ 12
  • SO₂ 3 µg/m³ 1
  • CO 0.17 mg/m³ 1

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
Torreón Coahuila 19
Chihuahua Chihuahua 16
Hermosillo Sonora 16
Zapopan Jalisco 73
Aguascalientes Aguascalientes 62
Saltillo Coahuila 43
León Guanajuato 44

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 Culiacán’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 Culiacán right now?
55 on the US EPA scale (Moderate) at 05:00 UTC-7, 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 Culiacán 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 Culiacán get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 37 around 13:00 to 62 around 01:00 (4 Nov). Forecasts beyond a day are less certain.

How does Culiacán compare with other cities?
Right now it is the 568th most polluted of 849 cities we track worldwide, and 11th of 22 in Mexico, all on the same US EPA scale.

Why does another app show a different AQI for Culiacán?
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.