Air quality comparison · Spain, 540 km apart
Sevilla vs Valencia Air quality index (AQI) today
Valencia has cleaner air than Sevilla right now: AQI 33 (Good) against 56 (Moderate).
That puts them in different EPA bands, so the health advice differs today. But over the past 6 days, on modeled daily averages, Sevilla averaged AQI 43 against 51, and it was the cleaner of the two on 4 of those days. Sevilla has lost more forest since 2001. Sevilla has more tree cover.
Updated . Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf.
Sevilla56Valencia33
Head to head
Sevilla vs Valencia at a glance
Sevilla and Valencia are level, each ahead on 3 of 6 measures. The better figure in each row is marked.
| Sevilla | Valencia | |
|---|---|---|
| Air quality nowUS AQI. Lower is better. | 56 | 33 (better) |
| PM2.5Fine particles, µg/m³. | 11.6 | 6 (better) |
| Past week's averageUS AQI, 6 days. | 43 (better) | 51 |
| Forest lost since 2001Within 10 km of the center. | 72 ha | 8 ha (better) |
| Tree coverWithin 2 km of the center. | 14.4% (better) | 12.3% |
| Trees still neededTo reach a healthy canopy. | 48.8K (better) | 55.6K |
Air quality today
What is the air like in Sevilla and Valencia right now?
Valencia has cleaner air than Sevilla right now: AQI 33 (Good) against 56 (Moderate). PM2.5 is setting the index in both.
Valencia is read from a nearby ground station and Sevilla is a model estimate, so the two are not quite like for like.
SevillaValencia
Concentrations at the same moment as the index above, for the pollutants both places report. Lower is better. The dark marks on the PM2.5 and PM10 rows show the WHO's 24-hour guidelines (15 and 45 µg/m³).
Sevilla: Estimate · model corrected with 3 station cities within 165 km, e.g. Algeciras and Gibraltar. Data: Open-Meteo / CAMS, corrected with 3 ground-station cities within 165 km, US EPA index.
Valencia: Ground station · VALÈNCIA - MOLÍ DEL SOL, 2.6 km away · median of 10 stations. Data: OpenAQ · EEA.
The past week
Which had cleaner air over the past 6 days?
But over the past 6 days, on modeled daily averages, Sevilla averaged AQI 43 against 51, and it was the cleaner of the two on 4 of those days. A single reading can catch a city on a bad afternoon; the week says whether it was the weather or the place.
- Cleaner days
- Sevilla4Valencia2
- Average AQI
- Sevilla43Valencia51
- Worst day, AQI
- Sevilla56Valencia60
The daily numbers (6 days)
| Day | Sevilla | Valencia |
|---|---|---|
| Nov 5 | 49 | 41 |
| Nov 6 | 56 | 55 |
| Nov 7 | 49 | 60 |
| Nov 8 | 41 | 58 |
| Nov 9 | 30 | 55 |
| Nov 10 | 33 | 37 |
Daily averages from the CAMS atmospheric model for both places, so the week compares like with like. They can differ from today's reading at the top of the page wherever that comes from a ground station.
What it means today
Is it safe to go outside in Sevilla and Valencia today?
Sevilla (AQI 56, Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Valencia (AQI 33, Good): Air quality is satisfactory for everyone.
Exercise outdoors
- Sevilla
- Fine for most people; unusually sensitive people should take long or hard exercise easier.
- Valencia
- A good day to be active outside.
Windows
- Sevilla
- Fine to open; close them if you are sensitive to pollution.
- Valencia
- Open them to air the house.
Masks
- Sevilla
- Not needed for most people.
- Valencia
- Not needed.
Air purifier
- Sevilla
- Worth running if you are sensitive.
- Valencia
- Not needed.
Against everywhere else
How do Sevilla and Valencia compare with the rest of the world?
Right now Sevilla's air is cleaner than 52% of the 5,420 places Airleaf tracks, and Valencia's is cleaner than 76%. Within Spain, that is 11% and 36% of its 57 measured places.
Cleaner air than…
- Sevilla
- Beats 52%
- Valencia
- Beats 76%
More tree cover than…
- Sevilla
- Beats 33%
- Valencia
- Beats 27%
Includes model estimates as well as station readings, so it can differ from our most polluted and cleanest air rankings, which use station readings only.
Deforestation · 2001–2025
Which has lost more forest, Sevilla or Valencia?
Sevilla has lost more: about 72 ha of forest within 10 km of its center from 2001 to 2025, against 8 ha around Valencia. 68 ha of that was cleared for good, for farms, mines or towns.
Measured within 10 km of each center, from the yearly satellite maps of forest loss: a wider circle than the one for tree cover, because forest is usually lost at a city's edges.
Worst year: 2016, with 18 ha lost.
Worst year: 2022, with 1 ha lost.
| Sevilla | Valencia | |
|---|---|---|
| Forest lost since 2001Cleared, burned or logged. | 72 ha | 8 ha (better) |
| Share of its forestOf what it had in 2000. | 11% | 2.7% (better) |
| Cleared for goodTurned into farms, mines or towns. | 68 ha | 8 ha (better) |
| Recent trend2021–2025 against the five years before. | Too little to call | Too little to call |
| Main known cause | Farms, pasture and plantations (81%) | Farms, pasture and plantations (59%) |
Satellite timelapses
Watch both change, year by year
A clear satellite photo a year of the land around each city. Press play, turn on the forest cleared since the first year, or drag the before and after.
Sevilla
2017: satellite photo from July 2017 of a 5 × 5 km area in the city center.
Valencia
2017: satellite photo from June 2017 of a 5 × 5 km area in the city center.
Trees
Which has more trees, Sevilla or Valencia?
Sevilla has more tree cover: 14.4% of the land within 2 km of its center against 12.3% around Valencia, or about 45,013 trees against 38,642.
The dark mark is each place's canopy target: 30% of the land, raised where air quality is poor.
| Sevilla | Valencia | |
|---|---|---|
| Trees standingEstimated from the canopy area. | 45.0K (better) | 38.6K |
| Trees still neededTo reach the target. Fewer is better. | 48.8K (better) | 55.6K |
| CO₂ absorbed each yearBy the trees already standing. | 990K kg (better) | 850K kg |
Tree cover on the satellite image
The same 2 km radius around each center, with the tree cover the satellite found marked on it.
Reading these numbers
How this comparison is made
Air quality index
The US EPA index, computed from current pollutant concentrations: ground stations where a place has them nearby, and the CAMS atmospheric model everywhere else. It moves hour to hour, so it is a snapshot rather than a verdict on either place. The guideline marks are from the WHO's 2021 air quality guidelines.
Trees and forest
Tree cover is the share of ground under canopy within 2 km of each center, read from Sentinel-2 satellite imagery at 10 m detail. It measures that circle, not the whole municipality, which is what makes the two comparable. Forest loss comes from the University of Maryland's Global Forest Change maps.
More on the method on the About Airleaf page.
Frequently asked
Sevilla vs Valencia: your questions answered
Is Valencia cleaner than Sevilla?
On air quality, yes, right now: Valencia reads AQI 33 against 56, a gap of 23 points on the US EPA index. This is a live reading rather than an annual average, so it can reverse within a day. But over the past 6 days, on modeled daily averages, Sevilla averaged AQI 43 against 51, and it was the cleaner of the two on 4 of those days.
Is it safe to exercise outdoors in Sevilla and Valencia today?
In Sevilla, at AQI 56: Unusually sensitive people should consider limiting long outdoor exertion. In Valencia, at AQI 33: Air quality is satisfactory for everyone.
Which has lost more forest, Sevilla or Valencia?
Sevilla has lost more: about 72 ha of forest within 10 km of its center from 2001 to 2025, against 8 ha around Valencia. 68 ha of that was cleared for good, for farms, mines or towns.
Which has more trees, Sevilla or Valencia?
Sevilla has more tree cover: 14.4% of the land within 2 km of its center against 12.3% around Valencia, or about 45,013 trees against 38,642. Both figures describe the same-sized circle of ground around each center, not the whole municipality.
How many more trees do Sevilla and Valencia need?
Sevilla needs about 48,764 more to reach its canopy target of 30%, and Valencia about 55,606 to reach 30%. The target starts at 30% of the land and rises where air quality is poor.
Are Sevilla and Valencia measured the same way?
The method is the same: the US EPA index for air, and Sentinel-2 satellite imagery at 10 m detail over an identical radius for trees. Valencia is read from a nearby ground station and Sevilla is a model estimate, so the two are not quite like for like. Nothing is adjusted for population, city limits or climate.
How often does the Sevilla vs Valencia comparison update?
The air readings refresh about once an hour, and each reading's local time is shown at the top of the page. Tree cover comes from the latest clear satellite image of each area (Sep 17, 2026 and Sep 11, 2026), and the forest figures are published yearly.
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