Air Quality Index (AQI) in Culiacán, Mexico 🇲🇽

Air quality in Culiacán is currently 56 on the US AQI scale, rated Moderate.

27°C

Thundery outbreaks in nearby

The current Air Quality Index (AQI) in Culiacán is recorded at 56 as of 6:12 AM local time this Thursday, September 17, 2026. This real-time AQI score is estimated from the current PM2.5 concentration. According to the US EPA health standard, air quality in Culiacán currently falls into the Moderate category. The PM2.5 pollution levels are currently measured at 11.8 µg/m³. While this AQI level is acceptable for most people, those who are unusually sensitive to air pollution should consider reducing prolonged or heavy exertion outdoors. If you are sensitive to air pollution, check the local weather before heading out. For the AQI across entire Mexico, you can also view the Air Quality Index for Mexico covering other major urban centers and local monitoring stations.

Health Recommendations for Culiacán Residents

⚠️

Air quality is acceptable. However, for some pollutants there may be a moderate health concern for a very small number of people. Sensitive groups should consider reducing prolonged outdoor exertion.

Culiacán Air Pollution: Detailed Pollutant Breakdown

🌿

Good news — Culiacán's air today is cleaner than a single cigarette (about 0.5).

Based on the Berkeley Earth estimate that ~22 µg/m³ of PM2.5 over a day is about one cigarette. Today's PM2.5 in Culiacán is 11.8 µg/m³.

PM 2.5

11.8

µg/m³

PM 10

14.2

µg/m³

Nitrogen Dioxide (NO2)

26.4

µg/m³

Ozone (O3)

32.0

µg/m³

Carbon Monoxide (CO)

320.0

µg/m³

Sulfur Dioxide (SO2)

3.5

µg/m³

Current Weather in Culiacán

🌡️ 27°C (Feels like 31°)

🌬️ 4 km/h E

💧 85% Humidity

🧭 1012 hPa

👁️ 9.0 km Visibility

☀️ UV Index: 0.0

🌅 Sunrise: 05:56 AM

🌇 Sunset: 06:11 PM

🌡️ Dew Point: 25°C

Culiacán's Main Air Pollutant Today

The main concern in Culiacán right now is NO2 at 26.4 µg/m³, about 1.1x the WHO 24-hour guideline.

Air Quality Health Advice for Culiacán

General public	Air quality is acceptable for most people. Outdoor activity is fine.
Sensitive groups	Unusually sensitive people should consider easing prolonged or heavy exertion outdoors.

Air Quality in Other Cities in Mexico

Mexico City Tijuana Iztapalapa León de los Aldama Puebla Ecatepec de Morelos Santiago de Querétaro Ciudad Juárez Zapopan Guadalajara Mérida Gustavo Adolfo Madero Monterrey Ciudad Nezahualcoyotl Mexicali Chihuahua Hermosillo Naucalpan de Juárez Morelia Torreón Álvaro Obregón San Luis Potosí Aguascalientes Saltillo Guadalupe Acapulco de Juárez Tlalnepantla Cancún Coyoacán

Browse Air Quality in Mexico by cities in alphabetical order:

A B C D E F G H I J K L M N O P Q R S T U V X Y Z

Air Quality in Mexico ›

Frequently Asked Questions about Air Quality in Culiacán

What is the air quality (AQI) in Culiacán right now?

The current air quality index in Culiacán is 56 — categorised as Moderate.

Is the air in Culiacán safe to breathe today?

Today's air quality in Culiacán is rated Moderate on the US EPA scale.

What is the PM2.5 level in Culiacán right now?

The fine-particle (PM2.5) concentration in Culiacán is currently 11.8 µg/m³. PM2.5 is the most health-relevant pollutant — the WHO 24-hour guideline is 15 µg/m³.

What is the PM10 level in Culiacán right now?

The coarse-particle (PM10) concentration in Culiacán is currently 14.2 µg/m³.

What is the main pollutant in Culiacán right now?

The dominant pollutant in Culiacán right now is NO2 at 26.4 µg/m³.

Is it safe to exercise outdoors in Culiacán today?

With air quality currently rated Moderate, outdoor exercise in Culiacán is generally considered safe for most people.

How to Read the Air Quality Index for Culiacán

Good (0-50)

Air is fresh and healthy. Safe for all outdoor activities.

Moderate (51-100)

Acceptable air quality, though sensitive groups should monitor comfort.

Unhealthy (Sensitive) (101-150)

Vulnerable groups (children, elderly) should limit outdoor exertion.

Unhealthy (151-200)

Everyone begins to experience health effects. Stay indoors where possible.

Very Unhealthy (201-300)

Significant health impact for entire population. Emergency conditions.

Hazardous (301+)

Serious health alert: everyone may experience serious life-threatening effects.

Good (0-12)

Fine particles are at minimal, safe levels. Air is optimal.

Moderate (12-35)

Acceptable air, but haze may be present in urban areas.

Sensitive (35-55)

Individuals with heart or lung disease should limit activity.

Unhealthy (55-150)

Particulate levels high enough to cause respiratory irritation.

Very Unhealthy (150-250)

Heavy haze. High risk to cardiovascular health for the public.

Hazardous (250+)

Lethal particulate concentrations. Critical neurological and lung risk.

Good (0-54)

Low levels of dust and coarse particles. Environment is safe.

Moderate (55-154)

Coarse particles may trigger coughing in sensitive groups.

Sensitive (155-254)

Visible dust pollution. Sensitive groups should avoid heavy labor.

Unhealthy (255-354)

Widespread respiratory impacts likely for the population.

Very Unhealthy (355-424)

Dangerous dust and debris levels. Significant warnings issued.

Hazardous (425+)

Extremely high concentrations. Stay inside with filtration.

Good (0-54)

Surface ozone levels are within a safe, natural range.

Moderate (55-70)

Acceptable air, but sensitive individuals may feel chest tightness.

Sensitive (71-85)

Rising ozone can trigger airway inflammation in active children.

Unhealthy (86-105)

Avoid heavy outdoor work during the hottest part of the day.

Very Unhealthy (106-200)

Serious lung function reduction likely across the public.

Hazardous (201+)

Emergency ozone levels. Risk of permanent lung tissue damage.

Good (0-53)

Nitrogen levels are optimal. Safe for everyone.

Moderate (54-100)

Typical background levels for high-density urban areas.

Sensitive (101-360)

Increased risk of respiratory infections for vulnerable groups.

Unhealthy (361-649)

Significant airway inflammation likely near traffic zones.

Very Unhealthy (650-1249)

Acute respiratory distress potential. High-risk groups stay indoors.

Hazardous (1250+)

Toxic concentrations. Immediate health precautions required.

Good (0-4.4)

Carbon Monoxide levels are clean and non-toxic.

Moderate (4.5-9.4)

Acceptable; may affect those with specific heart conditions.

Sensitive (9.5-12.4)

Reduced oxygen delivery to the heart may occur.

Unhealthy (12.5-15.4)

Headaches and fatigue may occur in urban canyons.

Very Unhealthy (15.5-30.4)

Significant cardiovascular distress. Mental confusion possible.

Hazardous (30.5+)

Lethal potential. Immediate risk of neurological collapse.

Good (0-35)

Optimal air quality with no sulfur detection.

Moderate (36-75)

Acceptable air; minor odors possible near industry.

Sensitive (76-185)

Bronchoconstriction possible for active asthmatics.

Unhealthy (186-304)

Respiratory distress likely for the wider population.

Very Unhealthy (305-604)

Significant wheezing and shortness of breath likely.

Hazardous (605+)

Extreme respiratory danger. Significant life risk.

Health & Scientific Resources

→ How to read US EPA Air Quality Index before going outside → Understanding Air Quality Index levels and what they mean → When haze forms and what it does to air quality

How is this AQI calculated?

The primary Air Quality Index (AQI) shown above is calculated using the US EPA Linear Interpolation formula based on PM2.5 concentration (Fine Particulate Matter).

Formula: Ip = [(Ihi - Ilow) / (Chi - Clow)] * (Cp - Clow) + Ilow

Current PM2.5: 11.8 µg/m³
Calculation: Your city falls into the "Moderate" category (Category 2).

Current Conditions Explained

Is the AQI in Culiacán safe today?

Today's AQI is 56, which is categorized as Moderate. This means the air quality is moderate for the general population.