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Tamajón fire, July 2026 Semillas, Zarzuela de Jadraque, Bustares

Out · last detection 2 Aug 2026, 14:05 UTC

The fire started on 16 July 2026 in Tamajón, Spain, and satellites saw it burning for 18 days. Copernicus mapped a burnt perimeter of 33,022 hectares from satellite imagery, spread across 27 municipalities.

Number 3 in Spain in 2026, of 195.

Compare with…

Suggestions: Copernal · 2022El Cardoso de la Sierra · 2025Valdepeñas de la Sierra · 2022

Burnt area
33,022ha
Copernicus perimeter
Duration
≈ 18days
16 Jul 2026 – 2 Aug 2026
Municipalities hit
27
municipalities
Started on
16 Jul
2026
Heat detections
1,537
in a single hotspot: 412 MW
Danger at start
57
Extreme · FWI index
Average daily power
3.5GW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 16 Jul2 Aug
2 Aug 2026

How it evolved, day by day

17 Jul 2026 · 4,066 MW · 119 18 Jul 2026 · 2,991 MW · 179 19 Jul 2026 · 6,795 MW · 300 20 Jul 2026 · 15,971 MW · 488 21 Jul 2026 · 7,514 MW · 382 22 Jul 2026 · 565 MW · 39 23 Jul 2026 · 140 MW · 18 24 Jul 2026 · 59 MW · 7 25 Jul 2026 · 2 MW · 3 1 Aug 2026 · 7 MW · 1 2 Aug 2026 · 5 MW · 1
17 Jul 19 Jul 20 Jul 21 Jul 23 Jul 25 Jul 2 Aug

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

The weather it burned in

35°high
61km/h · peak gust
9%lowest humidity

It had gone 5 days without rain (1 mm or more) when it started.

This area had burned before

0% of the perimeter overlaps earlier fires recorded since 2016: 9 ha in 2022.

How big is it?

10 km
It burned the equivalent of 21% of the area of London (330 km² against 1,583 km²).

London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).

This compares size, not location: both shapes are at the same scale, north up, centred on each other.

What happened to each town

  1. Semillas 25 inhabitants · fire reached the centre
    4,744 ha reached on 17 Jul
    95 %
  2. Zarzuela de Jadraque 49 inhabitants · fire reached the centre
    3,121 ha reached on 19 Jul
    98 %
  3. Bustares 62 inhabitants · fire reached the centre
    2,688 ha reached on 19 Jul
    88 %
  4. La Miñosa 31 inhabitants · fire reached the centre
    2,356 ha reached on 20 Jul
    54 %
  5. Prádena de Atienza 45 inhabitants · fire reached the centre
    2,340 ha reached on 20 Jul
    81 %
  6. Tamajón 153 inhabitants · 2.4 km from the centre where it started
    2,183 ha reached on 17 Jul
    19 %
  7. Gascueña de Bornova 22 inhabitants · fire reached the centre
    2,075 ha reached on 19 Jul
    77 %
  8. Condemios de Arriba
    1,824 ha reached on 20 Jul
    42 %
  9. Villares de Jadraque 39 inhabitants · fire reached the centre
    1,563 ha reached on 19 Jul
    91 %
  10. Arbancón 574 inhabitants · 5.1 km from the centre
    1,235 ha reached on 17 Jul
    35 %
  11. El Ordial 32 inhabitants · 1.4 km from the centre
    1,087 ha reached on 19 Jul
    36 %
  12. Albendiego 50 inhabitants · 0.7 km from the centre
    990 ha reached on 21 Jul
    43 %
  13. Arroyo de las Fraguas 45 inhabitants · fire reached the centre
    952 ha reached on 17 Jul
    44 %
  14. Las Navas de Jadraque 37 inhabitants · fire reached the centre
    833 ha reached on 19 Jul
    93 %
  15. Miedes de Atienza 60 inhabitants · 3.1 km from the centre
    806 ha reached on 20 Jul
    19 %
  16. Monasterio 13 inhabitants · 1.3 km from the centre
    672 ha reached on 18 Jul
    31 %
  17. Ujados 20 inhabitants · fire reached the centre
    640 ha reached on 21 Jul
    55 %
  18. La Toba 70 inhabitants · 4.9 km from the centre
    618 ha reached on 20 Jul
    17 %
  19. Robledo de Corpes 39 inhabitants · 1.4 km from the centre
    583 ha reached on 20 Jul
    14 %
  20. Atienza 406 inhabitants · 4.4 km from the centre
    573 ha reached on 20 Jul
    5.5 %
  21. La Mierla 44 inhabitants · 0.5 km from the centre
    565 ha reached on 17 Jul
    29 %
  22. Hiendelaencina 107 inhabitants · 0.5 km from the centre
    266 ha reached on 20 Jul
    14 %
  23. Cogolludo
    204 ha reached on 18 Jul
    2.1 %
  24. Hijes 24 inhabitants · 1.7 km from the centre
    74 ha reached on 21 Jul
    3.5 %
  25. La Huerce 52 inhabitants · 2.7 km from the centre
    27 ha reached on 22 Jul
    0.6 %
  26. Condemios de Abajo 101 inhabitants · 2.9 km from the centre
    25 ha reached on 21 Jul
    2.0 %
  27. San Andrés del Congosto 63 inhabitants · 1.8 km from the centre
    4 ha
    0.2 %

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.

What burned

  • Sclerophyllous scrub33 %
  • Other natural land30 %
  • Coniferous forest25 %
  • Agricultural areas4.4 %
  • Scrub and transitional woodland2.9 %
  • Mixed forest2.8 %
  • Broadleaved forest1.8 %

Natura 2000 protected area affected: 51 %

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.

People and buildings inside the perimeter

GHSL 2025
Built-up area10 ha
Residents≈ 250

Inside the perimeter there were about 10 hectares of built-up land and about 250 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

Checked against the press

Checked on 29 September 2026

We checked this page against 4 sources published once the fire was out. This is what they add:

Also known as
Incendio de Guadalajara · incendio de la Sierra Norte de Guadalajara
Official area reported: 34,447 ha (the satellite measured 33,022 ha)

Sources

Official figures are measured differently from satellite ones and sometimes cover only part of the fire.

The weather day by day

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)

Day High Min. humidity Peak gust Rain Danger (FWI)
16 Jul 31.2 °C 16 % 59 km/h 0.0 mm Extreme 57
17 Jul 30.4 °C 14 % 48 km/h 0.0 mm Extreme 51
18 Jul 31.7 °C 10 % 46 km/h 0.0 mm Extreme 56
19 Jul 31.8 °C 10 % 43 km/h 0.0 mm Extreme 55
20 Jul 32.2 °C 11 % 50 km/h 0.0 mm Extreme 61
21 Jul 33.8 °C 12 % 45 km/h 0.0 mm Extreme 56
22 Jul 35.2 °C 13 % 54 km/h 0.5 mm Extreme 61
23 Jul 34.9 °C 9 % 42 km/h 0.0 mm Extreme 60
24 Jul 30.1 °C 12 % 61 km/h 0.0 mm Extreme 69
25 Jul 24.1 °C 27 % 38 km/h 1.7 mm Moderate 21
26 Jul 27.2 °C 18 % 28 km/h 0.0 mm High 35
27 Jul 31.2 °C 20 % 22 km/h 0.0 mm High 35
28 Jul 33.7 °C 16 % 34 km/h 0.0 mm Very high 42
29 Jul 34.6 °C 18 % 40 km/h 0.0 mm Very high 49
30 Jul 34.7 °C 14 % 44 km/h 0.0 mm Extreme 54
31 Jul 34.1 °C 10 % 48 km/h 0.0 mm Extreme 58
1 Aug 34.8 °C 13 % 46 km/h 0.0 mm Extreme 56
2 Aug 33.0 °C 15 % 39 km/h 0.0 mm Extreme 53
3 Aug after 28.6 °C 24 % 40 km/h 0.3 mm Very high 47
4 Aug after 30.8 °C 23 % 36 km/h 0.0 mm Very high 44
5 Aug after 32.8 °C 21 % 30 km/h 0.0 mm Very high 42
6 Aug after 33.6 °C 22 % 25 km/h 0.0 mm Very high 41
7 Aug after 34.8 °C 15 % 36 km/h 0.1 mm Very high 49
8 Aug after 33.5 °C 14 % 42 km/h 0.0 mm Extreme 55
9 Aug after 32.1 °C 17 % 54 km/h 0.0 mm Extreme 59
10 Aug after 33.4 °C 13 % 37 km/h 0.0 mm Very high 49
11 Aug after 32.6 °C 12 % 31 km/h 0.0 mm Very high 46
12 Aug after 34.5 °C 12 % 29 km/h 0.0 mm Very high 48

Before and after, from space

Drag the line to compare the same ground before the fire and after it.

Before · 9 Jul 2026
After · 9 Aug 2026

If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.

The smoke

CAMS · Copernicus

On 19 July 2026 the air beside the fire reached 19 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak19 µg/m³
Days over the guideline0 days
PM1030 µg/m³
Optical depth0.56
141516171819
Good Fair Moderate Poor Very poor Extremely poor

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)

Detections table · 1,537Every satellite heat detection, one by one, with time, satellite, power and coordinates.
⬇ Download CSV Times in UTC. Each detection is a 375 m pixel: a large fire yields hundreds per pass.
Date and timeSatelliteFRP (MW)LatLon

Other fires nearby

All fires in Spain ›

Frequently asked questions

How long did the Tamajón fire last?
The official perimeter only gives the start date (16 July 2026). The end comes from the heat detections inside the perimeter: it burned until 2 August 2026 (18 days from 16 July 2026), the last day with detections before more than 10 days in a row without any, so it is approximate.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 33,022 hectares (330.2 km²). Official national figures may differ.
Which municipalities burned?
The fire entered 27 municipalities: Semillas (4,744 ha, 95 %); Zarzuela de Jadraque (3,121 ha, 98 %); Bustares (2,688 ha, 88 %); La Miñosa (2,356 ha, 54 %); Prádena de Atienza (2,340 ha, 81 %); Tamajón (2,183 ha, 19 %); Gascueña de Bornova (2,075 ha, 77 %); Condemios de Arriba (1,824 ha, 42 %); Villares de Jadraque (1,563 ha, 91 %); Arbancón (1,235 ha, 35 %); El Ordial (1,087 ha, 36 %); Albendiego (990 ha, 43 %).
Did the fire reach a town?
The fire reached the centre of Semillas: the point marking it was inside the burnt area or less than 500 metres from it. That does not mean houses burned.
What was the weather like?
During the fire the temperature reached 35.2 °C, humidity dropped to 9 % and gusts hit 61 km/h. The fire danger index (FWI) reached 69, class Extreme.
Where does this data come from?
From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Spain (geoBoundaries). It is not an official report.

Where to verify it

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

History of this page · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 16 July 2026 → 2 August 2026.

RSS Changes to this page

Does something look wrong on this page?

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.

Report an error
What do you think is wrong?

We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 112.

How we know this
  • Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
  • The official perimeter has no end date: the end is the last day with VIIRS detections inside the perimeter before a gap of more than 10 days (150 days at most), so it is approximate. 1,537 Suomi-NPP VIIRS detections on those dates.
  • We have not matched this page with any official record.
  • Checked against news and agencies: 4 confirmed sources.
  • Weather: Copernicus ERA5 reanalysis at the fire location, in cells of about 25 km.
  • Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2025, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.

How we build fire pages: methodology ›

Where this data comes from

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.