Lafon fire, 18 January 2026 Lafon
The fire started on 18 January 2026 in Lafon, South Sudan, and satellites saw it burning for 11 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 8,245 hectares from heat detections, spread across a single municipality.
It is the 29th largest in Eastern Equatoria since 2016 (of 80 with a page). Number 68 in South Sudan in 2026, of 191.
The power measured by the satellite is low (28.7 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…
Suggestions: Lafon · 2023Lafon · 2021Lafon · 2021Lafon · 2019
- Burnt area
- 8,245ha
- GWIS perimeter (Copernicus)
- Duration
- 11days
- 18 Jan 2026 – 28 Jan 2026
- Municipalities hit
- 1
- counties
- Started on
- 18 Jan
- 2026
- Heat detections
- 217
- in a single hotspot: 29 MW
- Danger at start
- 41
- Very high · FWI index
- Average daily power
- 103MW
- 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 26 days without rain (1 mm or more) when it started.
This area had burned before
97% of the perimeter overlaps earlier fires recorded since 2016: 3,181 ha in 2016, 382 ha in 2017, 2,022 ha in 2019, 1,633 ha in 2020, 5,770 ha in 2021, 315 ha in 2022, 3,835 ha in 2023, 520 ha in 2024, 1,847 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 8,007 ha that had burned before.
- 2,851 ha Lafon fire, February 2023 17,278 ha in total; the hectares shown are those it shares with this fire
- 2,401 ha Lafon fire, December 2021 11,888 ha in total; the hectares shown are those it shares with this fire
- 1,934 ha Lafon fire, February 2021 11,838 ha in total; the hectares shown are those it shares with this fire
- 242 ha Lafon fire, January 2019 5,772 ha in total; the hectares shown are those it shares with this fire
- 85 ha Lafon fire, January 2019 58,253 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).
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).
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.
What happened to each town
-
Lafon where it started8,303 ha reached on 18 Jan0.5 %
Burnt area inside each municipality, from crossing the GWIS 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.
People and buildings inside the perimeter
GHSL 2025Inside the perimeter there was no noticeable built-up land and almost nobody lived there (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
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) |
|---|---|---|---|---|---|
| 18 Jan | 36.8 °C | 26 % | 24 km/h | 0.0 mm | Very high 41 |
| 19 Jan | 37.2 °C | 28 % | 31 km/h | 0.0 mm | Very high 45 |
| 20 Jan | 39.1 °C | 24 % | 41 km/h | 0.0 mm | Extreme 50 |
| 21 Jan | 38.9 °C | 20 % | 53 km/h | 0.0 mm | Extreme 61 |
| 22 Jan | 39.2 °C | 17 % | 63 km/h | 0.0 mm | Very extreme 74 |
| 23 Jan | 39.4 °C | 16 % | 57 km/h | 0.0 mm | Very extreme 70 |
| 24 Jan | 39.9 °C | 18 % | 53 km/h | 0.0 mm | Extreme 67 |
| 25 Jan | 39.4 °C | 20 % | 43 km/h | 0.0 mm | Extreme 58 |
| 26 Jan | 38.3 °C | 22 % | 33 km/h | 0.0 mm | Extreme 51 |
| 27 Jan | 38.0 °C | 25 % | 33 km/h | 0.0 mm | Very high 48 |
| 28 Jan | 37.8 °C | 26 % | 44 km/h | 0.0 mm | Extreme 55 |
| 29 Jan after | 38.3 °C | 21 % | 26 km/h | 0.0 mm | Very high 44 |
| 30 Jan after | 38.5 °C | 21 % | 36 km/h | 0.0 mm | Very high 49 |
| 31 Jan after | 38.2 °C | 22 % | 29 km/h | 0.0 mm | Very high 45 |
| 1 Feb after | 34.6 °C | 30 % | 36 km/h | 0.0 mm | Very high 46 |
| 2 Feb after | 39.1 °C | 19 % | 38 km/h | 0.0 mm | Extreme 51 |
| 3 Feb after | 38.3 °C | 25 % | 45 km/h | 0.0 mm | Extreme 56 |
| 4 Feb after | 38.9 °C | 23 % | 50 km/h | 0.0 mm | Extreme 62 |
| 5 Feb after | 38.6 °C | 20 % | 46 km/h | 0.0 mm | Extreme 59 |
| 6 Feb after | 38.5 °C | 23 % | 40 km/h | 0.0 mm | Extreme 54 |
| 7 Feb after | 36.5 °C | 25 % | 20 km/h | 0.1 mm | Very high 40 |
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 30 January 2026 the air beside the fire reached 74 µg/m³ of PM2.5. That day averaged 36: 2.4 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 · 217Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 17,278 haLafonFebruary 2023 · 13 days · 6 km away
- 11,888 haLafon11 December 2021 · 5 days · 6 km away
- 11,838 haLafon6 February 2021 · 6 days · 9 km away
- 17,526 haLafon20 January 2017 · 4 days · 23 km away
- 55,315 haLafon1 February 2021 · 12 days · 27 km away
- 17,639 haLafon11 December 2021 · 5 days · 27 km away
Frequently asked questions
- How long did the Lafon fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 18 January 2026 to 28 January 2026 (11 days). The perimeter dates it from 19 January 2026 to 28 January 2026.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 8,245 hectares (82.4 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Lafon (8,303 ha, 0.5 %).
- What was the weather like?
- During the fire the temperature reached 39.9 °C, humidity dropped to 16 % and gusts hit 63 km/h. The fire danger index (FWI) reached 74, class Very extreme.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of South Sudan (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.
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.
- Start date: 19 January 2026 → 18 January 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: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
- Dates adjusted with the VIIRS detections inside the perimeter, which said 19 January 2026 to 28 January 2026. 217 Suomi-NPP VIIRS detections 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.
- 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.
Where this data comes from
The perimeter comes from the Copernicus Global Wildfire Information System (GWIS), which rebuilds it from MODIS and VIIRS heat detections and publishes it under CC BY 4.0. It is not measured on imagery as in Europe, so it is an estimate. 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 ADM2 (Creative Commons Attribution 3.0 Intergovernmental Organisations (CC BY 3.0 IGO)). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ from each country’s official figure.