Mandra-Eidyllia fire, 31 July 2026 Μάνδρας - Ειδυλλίας · Mandra-Eidyllia, Megara, Thebes
The fire started on 31 July 2026 in Mandra-Eidyllia, Greece, and satellites saw it burning for 6 days. Copernicus mapped a burnt perimeter of 13,192 hectares from satellite imagery, spread across 3 municipalities.
It is the largest fire in Attica since 2016 (of 32 with a page). The largest in Greece in 2026, of 28.
Compare with…
- Burnt area
- 13,192ha
- Copernicus perimeter
- Duration
- ≈ 6days
- 31 Jul 2026 – 5 Aug 2026
- Municipalities hit
- 3
- municipalities
- Started on
- 31 Jul
- 2026
- Heat detections
- 934
- in a single hotspot: 517 MW
- Danger at start
- 33
- High · FWI index
- Average daily power
- 6.4GW
- detected power per day, on average
Where it burned
How it evolved, day by day
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
It had gone 6 days without rain (1 mm or more) when it started.
This area had burned before
5% of the perimeter overlaps earlier fires recorded since 2016: 51 ha in 2016, 358 ha in 2021, 206 ha in 2022, 40 ha in 2025.
- 342 ha Vilia fire, August 2021 10,175 ha in total; the hectares shown are those it shares with this fire
- 127 ha Mandra-Eidyllia fire, July 2022 156 ha in total; the hectares shown are those it shares with this fire
- 79 ha Megara fire, July 2022 244 ha in total; the hectares shown are those it shares with this fire
- 51 ha Megara fire, June 2016 387 ha in total; the hectares shown are those it shares with this fire
- 15 ha Megara fire, August 2025 103 ha in total; the hectares shown are those it shares with this fire
How big is it?
London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).
Athens boundary: geoBoundaries · geoBoundaries, Wikimedia Commons (CC0 1.0).
Paris boundary: geoBoundaries · Institut national de l'information géographique et forestière (IGN-F) (Etalab Open License 2.0).
Madrid boundary: geoBoundaries · Open Data ESRI, IGN Central Registry of Cartography Area (CC BY 4.0).
This compares size, not location: both shapes are at the same scale, north up, centred on each other.
What happened to each town
-
6,741 ha reached on 31 Jul16 %
-
3,456 ha reached on 1 Aug11 %
-
Thebes Θηβαίων2,925 ha reached on 31 Jul3.5 %
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 scrub38 %
- Coniferous forest20 %
- Scrub and transitional woodland20 %
- Agricultural areas16 %
- Other natural land5.2 %
- Artificial surfaces0.9 %
Natura 2000 protected area affected: 0 %
- LIC KORINTHIAKOS KOLPOS GR2530007
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.
Checked against the press
Checked on 30 September 2026We checked this page against 4 sources published once the fire was out. This is what they add:
- Also known as
- Φωτιά στη Δυτική Αττική · Φωτιά Πόρτο Γερμενό - Ψάθα · Φωτιά Ξηρονομή Βοιωτίας
- Official area reported: 14,424 ha (the satellite measured 13,192 ha)
Sources
- Wildfires Burn More Than 10,000 Hectares in Greece — EU Space Support Office, 2 August 2026 · official source
- Η μεγάλη πυρκαγιά σε Δυτική Αττική-Βοιωτία: Ανάλυση και διαδραστικός χάρτης από WWF, FLAME, FireWatch — in.gr, 21 September 2026
- Παπασταύρου: Ξεκίνησαν τα αντιδιαβρωτικά και αντιπλημμυρικά έργα στις πυρόπληκτες περιοχές της Μάνδρας — Mononews, 15 September 2026
- Wildfires burn 45,000 hectares across Greece's Attica region in 91 hours: Data — Anadolu Agency, 5 August 2026
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) |
|---|---|---|---|---|---|
| 31 Jul | 26.5 °C | 40 % | 59 km/h | 0.0 mm | High 33 |
| 1 Aug | 25.7 °C | 43 % | 56 km/h | 0.0 mm | High 33 |
| 2 Aug | 26.8 °C | 42 % | 45 km/h | 0.0 mm | High 29 |
| 3 Aug | 29.1 °C | 38 % | 34 km/h | 0.0 mm | High 26 |
| 4 Aug | 29.6 °C | 38 % | 34 km/h | 0.0 mm | High 27 |
| 5 Aug | 29.5 °C | 37 % | 41 km/h | 0.0 mm | High 29 |
| 6 Aug after | 29.3 °C | 40 % | 46 km/h | 0.0 mm | High 32 |
| 7 Aug after | 29.3 °C | 46 % | 29 km/h | 0.0 mm | High 25 |
| 8 Aug after | 30.2 °C | 41 % | 30 km/h | 0.0 mm | High 27 |
| 9 Aug after | 29.0 °C | 47 % | 45 km/h | 0.0 mm | High 31 |
| 10 Aug after | 28.5 °C | 45 % | 49 km/h | 0.0 mm | High 33 |
| 11 Aug after | 29.6 °C | 38 % | 41 km/h | 0.0 mm | High 31 |
| 12 Aug after | 29.4 °C | 34 % | 46 km/h | 0.0 mm | High 35 |
| 13 Aug after | 27.5 °C | 49 % | 55 km/h | 0.0 mm | High 35 |
| 14 Aug after | 26.1 °C | 41 % | 53 km/h | 0.0 mm | High 35 |
| 15 Aug after | 24.1 °C | 42 % | 50 km/h | 0.0 mm | High 34 |
Before and after, from space
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.
The smoke
CAMS · CopernicusOn 3 August 2026 the air beside the fire reached 343 µg/m³ of PM2.5. That day averaged 115: 7.6 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)
Detections table · 934Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 10,175 haVilia Μάνδρας - ΕιδυλλίαςAugust 2021 · 8 days · 8 km away
- 7,005 haGerania Λουτρακίου - Περαχώρας - Αγίων ΘεοδώρωνMay 2021 · 5 days · 13 km away
- 5,568 haKineta ΜέγαραJuly 2018 · 3 days · 16 km away
- 11,662 haDervenochoria Μάνδρας - ΕιδυλλίαςJuly 2023 · 7 days · 19 km away
- 3,735 haThebes ΘηβαίωνJuly 2026 · 2 days · 24 km away
- 6,057 haAspropyrgos ΑσπρόπυργοςAugust 2023 · 7 days · 34 km away
Frequently asked questions
- How long did the Mandra-Eidyllia fire last?
- The official perimeter only gives the start date (31 July 2026). The end comes from the heat detections inside the perimeter: it burned until 5 August 2026 (6 days from 31 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 13,192 hectares (131.9 km²). Official national figures may differ.
- Which municipalities burned?
- The fire entered 3 municipalities: Mandra-Eidyllia (6,741 ha, 16 %); Megara (3,456 ha, 11 %); Thebes (2,925 ha, 3.5 %).
- Did the fire reach a town?
- The fire started in Mandra-Eidyllia and came within 7.8 km of its centre. That is the distance from the perimeter, or the nearest hotspot, to the point marking the centre; it does not mean it entered the houses.
- What was the weather like?
- During the fire the temperature reached 29.6 °C, humidity dropped to 37 % and gusts hit 59 km/h. The fire danger index (FWI) reached 33, class High.
- Where does this data come from?
- From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Greece (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 · 199 · Emergency number and official warnings ›
Satellite cross-check
History of this page Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
No changes since 24 October 2026.
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
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. 934 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.
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 (CC0 1.0 Universal (CC0 1.0) Public Domain Dedication). 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.