The fire started on 25 July 2026 in la Vall d'Uixó, Spain, and satellites saw it burning for 6 days. Copernicus mapped a burnt perimeter of 9,222 hectares from satellite imagery, spread across 12 municipalities.
It is the 2th largest in Castelló / Castellón since 2016 (of 13 with a page). Number 7 in Spain in 2026, of 196.
Perimeter published by EFFIS (Copernicus).
The press and agencies we checked give 9,568 ha.
25 Jul 2026 to 30 Jul 2026: first and last day with fire on the page.
According to the press and agencies we checked, it was declared over on 31 July 2026.
First day with fire seen by the satellites or the perimeter.
No official record is matched to this page, so the alert time and the cause are not known here.
VIIRS detections at 375 m. Most intense hotspot: 275 MW.
There is no official record to compare with. Each hotspot is a pixel detected in one satellite pass, not a separate fire.
Total radiative power on 25 July 2026; hotspots that day: 88.
Fire radiative power (FRP) measures the energy the fire gives off when the satellite passes. Added up by day, it compares intensity, not area.
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 16.
This is an index computed from weather model data, not a measurement of the fire nor an official warning. Danger warnings are issued by each country’s authority. Emergency number and official warnings
High of 35.7 °C and minimum humidity of 16% on 25 July 2026; gusts of 45 km/h on 26 July 2026.
These are model values for a cell of about 25 km, not from a weather station: they may differ from what was measured on the ground.
Estimated residents inside the perimeter and 17 ha of built-up area (100 m grid, epoch 2025).
This is an estimate on 100 m cells, made from satellite imagery and census data: it does not mean that homes burned or that anyone was harmed. The perimeter also contains land that never burned.
This page’s change log has been kept since 24 October 2026: every night what it publishes is compared and the difference is logged. Anything earlier is reconstructed from each source’s date and marked as reconstructed.
Every night a snapshot of what the page shows is saved. If anything changes, it appears in the list as a log entry.
A version keeps the area, dates, name and official record; the area as it was logged (changes under 2% are not logged). The map, hotspots and weather always show today’s data.
| fecha | focos_viirs | frp_mw | tmax_c | tmin_c | hr_min_pct | viento_max_kmh | racha_max_kmh | precip_mm | fwi | clase_fwi | dentro_del_incendio |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-07-25 | 88 | 5,488 | 35.7 | 22.4 | 16 | 19.4 | 41.4 | 0 | 54.9 | extremo | 1 |
| 2026-07-26 | 170 | 3,587 | 30.9 | 21.5 | 28 | 20.6 | 45 | 0 | 41.4 | muy_alto | 1 |
| 2026-07-27 | 234 | 2,027 | 30.7 | 19.8 | 40 | 14.9 | 37.8 | 0 | 43.3 | muy_alto | 1 |
| 2026-07-28 | 88 | 924 | 31.9 | 21.6 | 49 | 16.8 | 39.6 | 0 | 39.7 | muy_alto | 1 |
| 2026-07-29 | 51 | 910 | 32.9 | 21.6 | 43 | 14.7 | 35.3 | 0 | 37.8 | alto | 1 |
| 2026-07-30 | 9 | 26 | 32.6 | 21.4 | 45 | 14.2 | 34.2 | 0 | 38.2 | muy_alto | 1 |
| 2026-07-31 | 0 | 0 | 32.1 | 23 | 55 | 14 | 32 | 0 | 33.6 | alto | 0 |
| 2026-08-01 | 0 | 0 | 32.2 | 22.7 | 61 | 14.1 | 29.5 | 0 | 27.1 | alto | 0 |
| 2026-08-02 | 0 | 0 | 32.9 | 23.5 | 56 | 15.4 | 34.6 | 0.1 | 25.8 | alto | 0 |
| 2026-08-03 | 0 | 0 | 31 | 23 | 62 | 11.5 | 29.2 | 0 | 25.2 | alto | 0 |
| 2026-08-04 | 0 | 0 | 32.7 | 21.9 | 41 | 12.2 | 34.9 | 0.5 | 27.6 | alto | 0 |
| 2026-08-05 | 0 | 0 | 32.1 | 22.6 | 60 | 10.2 | 31.3 | 0.1 | 28.3 | alto | 0 |
| 2026-08-06 | 0 | 0 | 32.1 | 23.6 | 60 | 12.9 | 34.2 | 0.5 | 28.5 | alto | 0 |
| 2026-08-07 | 0 | 0 | 33.1 | 23.5 | 53 | 12.2 | 29.5 | 0 | 27 | alto | 0 |
| 2026-08-08 | 0 | 0 | 33.8 | 23.4 | 51 | 12 | 29.9 | 0 | 26.4 | alto | 0 |
| 2026-08-09 | 0 | 0 | 33.8 | 24.3 | 46 | 12.1 | 31.7 | 0 | 27.9 | alto | 0 |
It is generated in your browser from this page’s data: one file per fire, aggregated by day and without individual hotspots.
It updates itself while the fire is still active and links to this page. Free, with the attribution shown at the bottom.
Sources for this page: EFFIS (Copernicus), NASA FIRMS (VIIRS), ERA5 (ECMWF/Copernicus C3S) · Open-Meteo.com (CC BY 4.0), GHSL (JRC). Open-Meteo.com · How we build fire pages: methodology
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
It had gone 16 days without rain (1 mm or more) when it started.
15% of the perimeter overlaps earlier fires recorded since 2016: 1,381 ha in 2016, 8 ha in 2025.
London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).
Madrid boundary: geoBoundaries · Open Data ESRI, IGN Central Registry of Cartography Area (CC BY 4.0).
Paris boundary: geoBoundaries · Institut national de l'information géographique et forestière (IGN-F) (Etalab Open License 2.0).
Berlin boundary: geoBoundaries · Federal Agency for Cartography and Geodesy (dl-de/by-2-0).
This compares size, not location: both shapes are at the same scale, north up, centred on each other.
Burnt area inside each municipality, from crossing the official perimeter with administrative boundaries. The distance runs from the point marking the centre of each area to the nearest fire: staying a kilometre away does not mean it reached the houses.
Natura 2000 protected area affected: 81 %
Natura 2000 sites (European Environment Agency, 2024 release) crossed by the perimeter.
Land cover inside the perimeter according to Corine Land Cover, as reported by Copernicus.
Inside the perimeter there were about 17 hectares of built-up land and about 1,500 residents (GHSL 2025, satellite-based estimate).
This is an estimate on 100 m cells, made from satellite imagery and census data: it does not mean that homes burned or that anyone was harmed. The perimeter also contains land that never burned. The GHSL 2025 epoch is a projection made from 2020 and earlier data.
Source: Global Human Settlement Layer (GHS-BUILT-S and GHS-POP R2023A), European Commission Joint Research Centre (JRC), © European Union, CC BY 4.0. Sum inside the perimeter computed by WorldFires. human-settlement.emergency.copernicus.eu
We checked this page against 3 sources published once the fire was out. This is what they add:
Official figures are measured differently from satellite ones and sometimes cover only part of the fire.
ECMWF ERA5 reanalysis at the fire location, the standard reference for past weather, and the Canadian Fire Weather Index (the same system Copernicus uses), computed by WorldFires from that data. Days after the fire run until the first rain.
Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)
Started with Extreme FWI: 13 % of the area in Spain
| Day | High | Min. humidity | Peak gust | Rain | Danger (FWI) |
|---|---|---|---|---|---|
| 25 Jul | 35.7 °C | 16 % | 41 km/h | 0.0 mm | Extreme 55 |
| 26 Jul | 30.9 °C | 28 % | 45 km/h | 0.0 mm | Very high 41 |
| 27 Jul | 30.7 °C | 40 % | 38 km/h | 0.0 mm | Very high 43 |
| 28 Jul | 31.9 °C | 49 % | 40 km/h | 0.0 mm | Very high 40 |
| 29 Jul | 32.9 °C | 43 % | 35 km/h | 0.0 mm | High 38 |
| 30 Jul | 32.6 °C | 45 % | 34 km/h | 0.0 mm | Very high 38 |
| 31 Jul after | 32.1 °C | 55 % | 32 km/h | 0.0 mm | High 34 |
| 1 Aug after | 32.2 °C | 61 % | 30 km/h | 0.0 mm | High 27 |
| 2 Aug after | 32.9 °C | 56 % | 35 km/h | 0.1 mm | High 26 |
| 3 Aug after | 31.0 °C | 62 % | 29 km/h | 0.0 mm | High 25 |
| 4 Aug after | 32.7 °C | 41 % | 35 km/h | 0.5 mm | High 28 |
| 5 Aug after | 32.1 °C | 60 % | 31 km/h | 0.1 mm | High 28 |
| 6 Aug after | 32.1 °C | 60 % | 34 km/h | 0.5 mm | High 28 |
| 7 Aug after | 33.1 °C | 53 % | 30 km/h | 0.0 mm | High 27 |
| 8 Aug after | 33.8 °C | 51 % | 30 km/h | 0.0 mm | High 26 |
| 9 Aug after | 33.8 °C | 46 % | 32 km/h | 0.0 mm | High 28 |
It started with an FWI of 54.9, a minimum humidity of 16% and 16 days without rain. Fires in the area that started in weather like this since 2016: 15.
First rain (1 mm or more) after it ended: 2.6 mm on 28 Jun.
First rain (1 mm or more) after it ended: none in the following ten days.
First rain (1 mm or more) after it ended: 4.2 mm on 26 Jul.
First rain (1 mm or more) after it ended: 3.2 mm on 17 Aug.
First rain (1 mm or more) after it ended: none in the following ten days.
It was 23.5 times larger than the median of its twins and lasted 6 days, against 2 days.
Only 1 of its 15 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In 3 of 15, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 2.8 mm.
This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it
It was considered over on 30 Jul, and not even 1 mm fell in the following ten days: it went out without rain. Twins with rain when they ended: 12 of 15, with a median of 2.8 mm.
Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)
Drag the line to compare the same ground before the fire and after it.
If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.
On 28 July 2026 the air beside the fire reached 635 µg/m³ of PM2.5. That day averaged 207: 14 times the WHO daily guideline (15).
Particles from the Copernicus CAMS model at the centre of the perimeter; these are not measurements in each town. The pale bar is the worst hour, the solid one the daily average.
Open-Meteo.com (CC BY 4.0) · Copernicus Atmosphere Monitoring Service (CAMS)
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
A satellite detection is not an official report. Final figures and the fire’s status are published by each country’s emergency service.
Emergency number: 112 · Emergency number and official warnings
Satellite cross-check
RSS Changes to this page With cross-checks and a citable version
This page is built from satellite data and official records, and it sometimes gets things wrong: the wrong dates, the wrong town, two fires merged into one, or something that was not a wildfire at all. If you know this fire first-hand (you live nearby, saw it, fought it or reported on it), tell us what really happened and we will check it.
The perimeter and land cover come from the Copernicus European Forest Fire Information System (EFFIS), measured on MODIS and Sentinel-2 imagery and published under CC BY 4.0. Heat detections come from the VIIRS sensors aboard Suomi-NPP and NOAA-20, distributed by NASA FIRMS at 375 m resolution. Municipal boundaries come from geoBoundaries ADM3 (Creative Commons Attribution 4.0 International (CC BY 4.0)). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ slightly from each country’s official figure.