Fine particles
7.2µg/m³Fair · 1 hourCAMS model • Open-Meteo
GuayaquilAir quality, PM2.5 and PM10
Check PM2.5 and PM10 particle levels alongside ozone, nitrogen dioxide and other gases. Compare the latest available concentrations with recent days and explore changes in air pollution through the available historical records.
Guayaquil - latest available concentrations (October 22, 2026, 20:00 local time): PM2.5: 7.2 µg/m³, PM10: 8.8 µg/m³, O₃: 35 µg/m³, NO₂: 16.3 µg/m³, SO₂: 8.6 µg/m³, CO: 696 µg/m³. These are hourly CAMS model values for a point representing the city.
Air quality questions →Guayaquil · Air pollutant concentrations
Data time: October 22, 2026 · 20:00 · local timeParticulate matter
8.8µg/m³Good · 1 hourOzone
35µg/m³Good · 1 hourNitrogen dioxide
16.3µg/m³Fair · 1 hourSulphur dioxide
8.6µg/m³Good · 1 hourCarbon monoxide
696µg/m³PM2.5 vs PM10 - what is the difference? → · Models and monitoring stations →
DAILY DATA · Guayaquil
Guayaquil - air pollution over recent days (2026-08-30 - 2026-10-21)
Concentrations of all available pollutants for this city.
PM2.5Lowest 8.02 2026-10-18Highest 13.68 2026-09-022026-08-30 - 2026-10-21
PM10Lowest 10.91 2026-10-18Highest 18.54 2026-09-022026-08-30 - 2026-10-21
O₃Lowest 49.5 2026-10-20Highest 69.08 2026-09-022026-08-30 - 2026-10-21
NO₂Lowest 2.35 2026-09-06Highest 12.15 2026-10-212026-08-30 - 2026-10-21
SO₂Lowest 3.21 2026-09-06Highest 9.07 2026-10-212026-08-30 - 2026-10-21
COLowest 144 2026-08-30Highest 797.79 2026-10-212026-08-30 - 2026-10-21
Scroll the chart or table sideways to see the full period.
| Pollutant | 2026-10-21 | 2026-10-20 | 2026-10-19 | 2026-10-18 | 2026-10-17 | 2026-10-16 | 2026-10-15 | 2026-09-06 | 2026-09-05 | 2026-09-04 | 2026-09-03 | 2026-09-02 | 2026-09-01 | 2026-08-31 | 2026-08-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 | 11.48 | 8.47 | 8.49 | 8.02 | 10.14 | 11.6 | 10.6 | 9.78 | 12.2 | 11.67 | 12.74 | 13.68 | 11.15 | 11.95 | 9.33 |
| PM10 | 14.1 | 11.63 | 10.96 | 10.91 | 13.83 | 16.65 | 14.95 | 13.89 | 17.02 | 15.91 | 17.15 | 18.54 | 15.57 | 16.7 | 12.91 |
| O₃ | 59.88 | 49.5 | 59.92 | 62.17 | 61.83 | 51.17 | 57.21 | 58.17 | 62.63 | 62.38 | 56.63 | 69.08 | 61.67 | 63.79 | 59.71 |
| NO₂ | 12.15 | 5.59 | 6.63 | 2.95 | 6.88 | 6.41 | 6.15 | 2.35 | 3.01 | 4.18 | 4.2 | 4.18 | 4.05 | 3.63 | 2.8 |
| SO₂ | 9.07 | 4.06 | 5.82 | 4.1 | 6.8 | 4.67 | 4.49 | 3.21 | 3.63 | 4 | 3.61 | 4.59 | 4.05 | 3.77 | 3.71 |
| CO | 797.79 | 516.38 | 491.54 | 175.08 | 269.21 | 393.46 | 352.71 | 166.5 | 165.33 | 224.67 | 225.08 | 273 | 244.42 | 204.96 | 144 |
A dot on the chart and a dash in the table indicate missing data. The latest day may be incomplete.
Air quality in nearby cities
All cities →Ecuador↗
Machala
PM2.52.4
PM102.4
µg/m³
PM2.5 · GoodNO₂ 6.1O₃ 57
October 22, 202620:00
Ecuador↗
Cuenca
PM2.52.4
PM102.4
µg/m³
PM2.5 · GoodNO₂ 11.7O₃ 36
October 22, 202620:00
Ecuador↗
Quevedo
PM2.53.4
PM103.6
µg/m³
PM2.5 · GoodNO₂ 6.9O₃ 64
October 22, 202620:00
Ecuador↗
Portoviejo
PM2.53.5
PM104.6
µg/m³
PM2.5 · GoodNO₂ 6.3O₃ 39
October 22, 202620:00
Ecuador↗
Riobamba
PM2.52.6
PM102.6
µg/m³
PM2.5 · GoodNO₂ 15.7O₃ 26
October 22, 202620:00
Ecuador↗
Manta
PM2.55.6
PM108.8
µg/m³
PM2.5 · FairNO₂ 2.4O₃ 51
October 22, 202620:00
Ecuador↗
Ambato
PM2.55
PM105.1
µg/m³
PM2.5 · GoodNO₂ 22.5O₃ 16
October 22, 202620:00
Ecuador↗
Loja
PM2.51.4
PM101.4
µg/m³
PM2.5 · GoodNO₂ 10.9O₃ 34
October 22, 202620:00
Ecuador · air quality in other cities
WEATHER & SURROUNDINGS
Guayaquil · weather forecast
Daily maximum and minimum temperatures. Forecast point: -2.2058, -79.908.
Scroll the forecast to see the following days.
Guayaquil · October 20, 2026: minimum temperature 24.6°C, maximum 31.6°C. Wind: 15 km/h. Humidity: 62%.
Full forecast: temperature, rainfall, wind and humidity
| Date | Day °C | Min °C | Max °C | Night °C | Rain mm | Wind m/s | Humidity % | Clouds % |
|---|---|---|---|---|---|---|---|---|
| 2026-10-20 | 31.1 | 24.6 | 31.6 | 27.9 | 3.3 | 4.2 | 62 | 87 |
| 2026-10-21 | 31.1 | 25.3 | 32.1 | 26.4 | 1.9 | 2.1 | 61 | 80 |
| 2026-10-22 | 28.9 | 25.7 | 30.7 | 26.2 | 17.4 | 3.6 | 75 | 100 |
| 2026-10-23 | 29.3 | 25.1 | 30.5 | 25.7 | 6.4 | 3.1 | 71 | 100 |
| 2026-10-24 | 30.3 | 24.9 | 31.3 | 26.6 | 6.3 | 2.3 | 65 | 74 |
| 2026-10-25 | 30.8 | 25.1 | 31.3 | 26.6 | 9.2 | 2.2 | 65 | 81 |
| 2026-10-26 | 29.9 | 24.7 | 30.8 | 26.5 | 7.7 | 2.8 | 67 | 90 |
| 2026-10-27 | 30.2 | 25.4 | 30.4 | 26.1 | 17.1 | 1.6 | 65 | 98 |
| 2026-10-28 | 30.6 | 25.2 | 30.6 | 25.3 | 32.1 | 3.6 | 66 | 95 |
| 2026-10-29 | 28.5 | 24.5 | 29.4 | 25.1 | 22.1 | 2.9 | 73 | 100 |
| 2026-10-30 | 31.2 | 24.2 | 31.2 | 25.7 | 13 | 2.5 | 61 | 100 |
| 2026-10-31 | 30.3 | 24.3 | 30.3 | 26.3 | 11.3 | 2.8 | 65 | 100 |
| 2026-11-01 | 31.6 | 24.1 | 31.6 | 25 | 25.7 | 3.7 | 60 | 82 |
| 2026-11-02 | 26.2 | 23.9 | 26.8 | 25 | 29.1 | 1.9 | 83 | 100 |
| 2026-11-03 | 29.2 | 24.2 | 30 | 25.4 | 9 | 2.3 | 66 | 98 |
| 2026-11-04 | 30.2 | 24.4 | 30.2 | 24.7 | 6 | 3.2 | 64 | 87 |
| 2026-11-05 | 30.3 | 23 | 30.3 | 24.9 | 11 | 3.6 | 57 | 75 |
UV index by day · Guayaquil
City data.
SPF 30-50, hat and sunglasses are a must. Better to stay in the shade 11:00-15:00.
0-2 low3-5 moderate6-7 high8-10 very high11+ extreme
Scroll the forecast to see the following days.
Guayaquil · October 22, 2026: UV index: 6.5 .
| Indicator | 2026-10-22 | 2026-10-23 | 2026-10-24 | 2026-10-25 | 2026-10-26 | 2026-10-27 | 2026-10-28 | 2026-10-29 | 2026-10-30 | 2026-10-31 | 2026-11-01 | 2026-11-02 | 2026-11-03 | 2026-11-04 | 2026-11-05 | 2026-11-06 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index | 6.5 | 6.7 | 9.3 | 7.9 | 8.9 | 3.6 | 6.6 | 7.4 | 7 | 6.7 | 8.7 | 7.9 | 8.2 | 5 | 7.9 | — |
AIR QUALITY QUESTIONS
Guayaquil · air pollution - questions and answers
What do the latest air quality data show for Guayaquil?
Guayaquil - latest available concentrations (October 22, 2026, 20:00 local time): PM2.5: 7.2 µg/m³, PM10: 8.8 µg/m³, O₃: 35 µg/m³, NO₂: 16.3 µg/m³, SO₂: 8.6 µg/m³, CO: 696 µg/m³. These are hourly CAMS model values for a point representing the city.
When was PM2.5 highest in Guayaquil over the past week?
The highest available daily mean PM2.5 was 11.6 µg/m³ (October 16, 2026). This comparison covers 7 days with data in the seven days before October 22, 2026. The day of the latest reading is excluded because it may be incomplete.
Is the PM2.5 concentration for Guayaquil an AQI score?
No. PM2.5 and PM10 are concentrations in µg/m³. AQI is a separate index calculated using a defined scale. When comparing air quality, also check other pollutants, the date and the averaging period.
What UV index does the available forecast show for Guayaquil?
For October 22, 2026, the forecast UV index is 6.5. The UV section also shows the following available days.
What wind speed is forecast for Guayaquil?
For October 20, 2026, forecast wind speed is 15 km/h. The weather table includes wind, temperature and other available parameters for subsequent days.
PM2.5 · PM10 · NO₂ · O₃
Understanding air quality and pollution data
What do PM2.5 and PM10 mean?
PM2.5 and PM10 are fractions of airborne particulate matter. PM2.5 covers fine particles up to 2.5 micrometres in diameter, while PM10 covers particles up to 10 micrometres. Concentrations in µg/m³ tell you how many micrograms of particles are present in a cubic metre of air. Compare values over the same time period.
Where does the air pollution data come from?
The latest concentrations come from the CAMS atmospheric model via Open-Meteo for each city’s coordinates. Values describe a model area, so conditions on individual streets may differ. Historical monitoring station data is shown separately where available.
How does PM2.5 concentration differ from AQI?
PM2.5 is the concentration of one particle fraction, expressed in µg/m³. AQI is an index calculated using a particular scale and thresholds. The pollutant cards show concentrations. Our city ranking compares PM2.5; PM10, ozone, nitrogen dioxide and other available gases add to the picture of air quality.
Which dates do the values and charts cover?
Each current value has a data date and time. Current concentration cards show the latest available hour, daily charts summarise individual days, and monthly records let you compare longer periods. These values represent different time intervals.
How can I check pollution in my city?
Search for your city and open its air quality page. Start with PM2.5 and PM10, then check the other available pollutants and the data timestamp. Charts and tables help you compare concentrations over time. Weather and historical climate information complement the pollution data.