Monemvasia fire, July 2025 Μονεμβασίας · Monemvasia
The fire started on 26 July 2025 in Monemvasia, Greece, and satellites saw it burning for 2 days. Copernicus mapped a burnt perimeter of 313 hectares from satellite imagery, spread across a single municipality.
It is the 21th largest in Peloponnese since 2016 (of 40 with a page). Number 22 in Greece in 2025, of 43.
The power measured by the satellite is low (3.6 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.
Compare with…
- Burnt area
- 313ha
- Copernicus perimeter
- Duration
- 2days
- 26 Jul 2025 – 27 Jul 2025
- Municipalities hit
- 1
- municipalities
- Started on
- 26 Jul
- 2025
- Heat detections
- 1
- in a single hotspot: 4 MW
- Danger at start
- 58
- Extreme · FWI index
- Average daily power
- 4MW
- detected power per day, on average
Where it burned
How it evolved, day by day
27 Jul 2025 · 4 MW · 1
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 34 days without rain (1 mm or more) when it started. Rain came after the fire: 1.2 mm on 6 Aug.
This area had burned before
No earlier perimeters overlap this fire since 2016, when the satellite record begins.
What happened to each town
-
314 ha reached on 27 Jul0.3 %
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 scrub99 %
- Artificial surfaces1.3 %
Land cover inside the perimeter according to Corine Land Cover, as reported by Copernicus.
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) |
|---|---|---|---|---|---|
| 26 Jul | 38.5 °C | 21 % | 62 km/h | 0.0 mm | Extreme 58 |
| 27 Jul | 35.4 °C | 29 % | 46 km/h | 0.0 mm | Very high 44 |
| 28 Jul after | 35.0 °C | 30 % | 54 km/h | 0.0 mm | Very high 47 |
| 29 Jul after | 33.1 °C | 36 % | 60 km/h | 0.0 mm | Very high 44 |
| 30 Jul after | 32.0 °C | 40 % | 37 km/h | 0.0 mm | High 33 |
| 31 Jul after | 32.6 °C | 38 % | 33 km/h | 0.0 mm | High 32 |
| 1 Aug after | 30.1 °C | 43 % | 34 km/h | 0.3 mm | High 30 |
| 2 Aug after | 32.4 °C | 36 % | 34 km/h | 0.0 mm | High 30 |
| 3 Aug after | 31.8 °C | 37 % | 37 km/h | 0.0 mm | High 30 |
| 4 Aug after | 32.1 °C | 32 % | 45 km/h | 0.0 mm | High 32 |
| 5 Aug after | 31.1 °C | 44 % | 28 km/h | 0.0 mm | High 27 |
| 6 Aug after | 30.1 °C | 44 % | 33 km/h | 1.2 mm | Moderate 17 |
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 28 July 2025 the air beside the fire reached 26 µg/m³ of PM2.5, but no daily average passed the WHO 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 · 1Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
Frequently asked questions
- How long did the Monemvasia fire last?
- Copernicus dates it between 26 July 2025 and 27 July 2025: 2 days between the first and last image with fire.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 313 hectares (3.1 km²). Official national figures may differ.
- Which municipalities burned?
- The fire only entered Monemvasia (314 ha, 0.3 %).
- What was the weather like?
- During the fire the temperature reached 38.5 °C, humidity dropped to 21 % and gusts hit 62 km/h. The fire danger index (FWI) reached 58, class Extreme.
- 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.
- Dates from the perimeter: the VIIRS detections inside it did not change them. One Suomi-NPP VIIRS detection on those dates.
- We have not matched this page with any official record.
- 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.