Is the air in Guadalajara safe today?

For most people, yes. Right now the US AQI in Guadalajara is 54, which counts as moderate. Acceptable. Unusually sensitive people should ease off long, intense outdoor effort.

When is the best time to be outside in Guadalajara?

Fri 15:00–18:00. That is the cleanest stretch in the next 24 hours, with the US AQI averaging about 45. The worst hour is around Sat 07:00, at 89.

What is the main pollutant in Guadalajara?

Fine particles (PM2.5). It drives the index right now, at 11 µg/m³. Tiny particles from combustion, fires and dust that reach deep into the lungs. The main driver of AQI worldwide.

How does Guadalajara's air compare with the WHO guideline?

1.2 times the guideline. Over the next 24 hours PM2.5 averages about 17 µg/m³, against the World Health Organization's 24-hour guideline of 15 µg/m³. NO2 is also forecast above its guideline level.

How many cigarettes is a day of Guadalajara's air?

About 0.8 cigarettes. Over the next 24 hours PM2.5 averages about 17 µg/m³. By Berkeley Earth's rule of thumb, 22 µg/m³ breathed for a day is roughly one cigarette.

Will air quality in Guadalajara improve this week?

Sunday looks cleanest. Its AQI peaks at 71, against 101 on Monday, the worst day in the forecast.

Guadalajara air quality

Jalisco, Mexico · Live AQI and hourly forecast for the next 5 days · valid Fri 11:00 local time

Moderate

US AQI, mostly PM_2.5

Model estimate. Nearby measurements are shown separately.

Acceptable. Unusually sensitive people should ease off long, intense outdoor effort.

Next 24 hours: 41–89US AQI, highest around Sat 07:00
Best time outside: Fri 15:00–18:00US AQI about 45
PM_2.5 vs WHO guideline: 1.2×17 µg/m³ over 24 h, guideline 15
Cigarette equivalent: ≈ 0.8 a dayBerkeley Earth rule of thumb

Loading the live globe…

The live globe, centred on Guadalajara. Switch pollutants, drag through the next 5 days or press play. Full map →

Pollutants in Guadalajara right now

Pollutant	Now	Level	Next 24 h vs WHO
Fine particles PM_2.5	11 µg/m³	Moderate	1.2×
Coarse particles PM₁₀	11 µg/m³	Good	0.4×
Nitrogen dioxide NO₂	5.5 µg/m³	Good	1.0×
Ozone O₃	77 µg/m³	Good	0.9×
Sulphur dioxide SO₂	1.9 µg/m³	Good	0.1×
Carbon monoxide CO	513 µg/m³	Good	0.1×
Aerosol optical depth	0.14	Whole atmosphere · dimensionless
Desert dust	0 µg/m³	Modelled surface dust
UV index	6	High

“Next 24 h vs WHO” compares the forecast with the World Health Organization’s 2021 guideline levels: 24-hour means of 15 µg/m³ for PM_2.5, 45 for PM₁₀, 25 for NO₂, 40 for SO₂ and 4 mg/m³ for CO, and 100 µg/m³ over 8 hours for ozone. Above 1× is above the guideline. Levels follow the US AQI, which is far less strict than the WHO, so air rated Good can still be above a guideline.

Next 48 hours

Hourly US AQI. Highest 89 around Sat 07:00, lowest 32 around Sun 10:00.

Good 0–50Moderate 51–100Sensitive 101–150Unhealthy 151–200Very unhealthy 201–300Hazardous 301+

5-day air quality forecast for Guadalajara

Daily range of the hourly US AQI, from lowest to highest, on a scale of 0 to 150.

Day	US AQI	At worst	Worst hour	PM_2.5 avg	UV max
Fri 13 Nov	41–92	Moderate	0:00	16	7 High
Sat 14 Nov	37–89	Moderate	7:00	15	8 Very high
Sun 15 Nov	32–71	Moderate	14:00	11	8 Very high
Mon 16 Nov	43–101	Sensitive	15:00	16	8 Very high
Tue 17 Nov	39–96	Moderate	0:00	18	7 High

Common questions about the air in Guadalajara

Is the air in Guadalajara safe today?
For most people, yes. Right now the US AQI in Guadalajara is 54, which counts as moderate. Acceptable. Unusually sensitive people should ease off long, intense outdoor effort.
When is the best time to be outside in Guadalajara?
Fri 15:00–18:00. That is the cleanest stretch in the next 24 hours, with the US AQI averaging about 45. The worst hour is around Sat 07:00, at 89.
What is the main pollutant in Guadalajara?
Fine particles (PM_2.5). It drives the index right now, at 11 µg/m³. Tiny particles from combustion, fires and dust that reach deep into the lungs. The main driver of AQI worldwide.
How does Guadalajara's air compare with the WHO guideline?
1.2 times the guideline. Over the next 24 hours PM_2.5 averages about 17 µg/m³, against the World Health Organization's 24-hour guideline of 15 µg/m³. NO₂ is also forecast above its guideline level.
How many cigarettes is a day of Guadalajara's air?
About 0.8 cigarettes. Over the next 24 hours PM_2.5 averages about 17 µg/m³. By Berkeley Earth's rule of thumb, 22 µg/m³ breathed for a day is roughly one cigarette.
Will air quality in Guadalajara improve this week?
Sunday looks cleanest. Its AQI peaks at 71, against 101 on Monday, the worst day in the forecast.

Measured near Guadalajara

Station and measurements	Distance	US AQI	Level
Centro OpenAQ, reference monitor PM₁₀: 35 µg/m³ · Fri 11:00 NO₂: 21 µg/m³ · Fri 11:00 O₃: 59 µg/m³ · Fri 11:00 SO₂: 8.3 µg/m³ · Fri 11:00	2.3 km	32	Good
Country OpenAQ, reference monitor PM_2.5: 29 µg/m³ · Fri 11:00 PM₁₀: 55 µg/m³ · Fri 11:00 NO₂: 34 µg/m³ · Fri 11:00 O₃: 37 µg/m³ · Fri 11:00 CO: 831 µg/m³ · Fri 11:00	4.4 km	88	Moderate
Tlaquepaque OpenAQ, reference monitor PM_2.5: 139 µg/m³ · Fri 11:00 PM₁₀: 24 µg/m³ · Fri 11:00 NO₂: 39 µg/m³ · Fri 11:00 O₃: 32 µg/m³ · Fri 11:00	4.4 km	214	Very unhealthy

Air quality near Guadalajara

US AQI right now. Cleanest nearby: Dallas (26); worst: Mexico City (66). The tick on each bar is Guadalajara, at 54.

Mexico City 461 km E 66 Moderate
Monterrey 639 km NE 40 Good
Houston 1,291 km NE 61 Moderate
Dallas 1,495 km NE 26 Good
Phoenix 1,662 km NW 53 Moderate
San Diego 1,915 km NW 26 Good

All 162 cities →

About this forecast

Forecast from CAMS global via Open-Meteo: the Copernicus Atmosphere Monitoring Service (CAMS) model at about 40 km resolution (about 10 km inside Europe). Global runs update every 12 hours and European runs every 24 hours. Models smooth out street-level peaks, so busy roads and industrial sites can be worse than shown. Nearby station measurements are independent observations, not adjustments to the forecast. The point forecast uses Open-Meteo’s CAMS products, including a separate carbon monoxide product; it can differ from the globe’s global grid. The AQI rates each hour on the US EPA scale, the same way the map colors it; official daily figures average over 24 hours (8 for ozone), so they can read lower after a short peak. Readings for 20.66°N, 103.35°W, valid 2026-11-13 17:00 UTC.