Worst air pollution San Sebastián de La Gomera, today and tomorrow
Today (30 August): Air quality in San Sebastián de La Gomera is moderate. AQI, PM2.5, and PM10 are moderate; O3 is fair; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (PM10: 59.3/100).
Tomorrow (31 August 2026): Air quality in San Sebastián de La Gomera is poor. AQI worsens to poor; PM10 increases to poor; all other pollutants stay as today. Pollution peaks around 12:00 AM (PM10: 60.7/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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In Parque Nacional de Garajonay, negligible traffic and no meaningful local pollution sources have the largest effect on air quality. Levels are consistently very low given the remote, forested setting. The near-constant cloud cover keeps the air humid and remarkably free of dust.
Today - 30 August | Pollution peaks at 23:00
AQI:
Moderate
59.3/100
PM2.5 (fine particles):
Moderate
44.3/100
PM10 (coarse particles):
Moderate
59.3/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
26.0/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
0.7/100
PM1 (ultrafine particles):
Good
5.8/100
Levels show the poorest local air quality during the day
Tomorrow - 31 August | Pollution peaks at 00:00
AQI:
Poor
60.7/100
PM2.5 (fine particles):
Moderate
45.3/100
PM10 (coarse particles):
Poor
60.7/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
23.9/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
0.8/100
PM1 (ultrafine particles):
Good
6.3/100
Frequently Asked Questions
Is air quality bad in San Sebastián de La Gomera right now?
On 30 August 2026, overall air quality in San Sebastián de La Gomera is moderate. AQI is the main air quality indicator at 59.3/100. Pollution peaks around 11:00 PM (PM10: 59.3/100).
Will air quality be worse tomorrow in San Sebastián de La Gomera?
On 31 August 2026, air quality conditions in San Sebastián de La Gomera will be worse than today, with AQI forecast at poor at 60.7/100. Pollution peaks around 12:00 AM (PM10: 60.7/100).
When is air pollution at its worst in San Sebastián de La Gomera?
Does air quality in Parque Nacional de Garajonay vary by season? Winter mornings are frequently the year's most polluted, as fog and calm conditions trap traffic fumes and smoke from wood stoves close to the ground. Spring usually brings an improvement as more frequent rain and stronger winds help clear the air and wash out pollutants that built up over winter. High summer temperatures and strong sun exposure drive ozone levels up, occasionally combined with smoke from nearby wildfires during dry spells. Autumn generally marks the shift back toward calmer, cleaner conditions as temperatures drop and rainfall becomes more regular. Here, the steady trade winds generally keep air quality stable across the year, aside from periodic calima events that bring dust from the Sahara.
Are air quality levels in San Sebastián de La Gomera based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 30 August 2026 at 14:32 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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