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SS · South Sudan · –

Raga fire, 12 December 2025 Raga, Wau

Out · last detection 8 Jan 2026, 11:30 UTC

The fire started on 12 December 2025 in Raga, South Sudan, and satellites saw it burning for 28 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 28,343 hectares from heat detections, spread across 2 municipalities.

Number 31 in South Sudan in 2025, of 235.

GWIS near-real-time perimeter, from the layer that changed in August 2025: this fire is not compared with fires from earlier years, because since then the GWIS layer gives more and larger perimeters.

Compare with…
Burnt area
28,343ha
GWIS perimeter (Copernicus)
Duration
28days
12 Dec 2025 – 8 Jan 2026
Municipalities hit
2
counties
Started on
12 Dec
2025
Heat detections
881
in a single hotspot: 101 MW
Danger at start
40
Very high · FWI index
Average daily power
319MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 12 Dec8 Jan
8 Jan 2026

How it evolved, day by day

12 Dec 2025 · 189 MW · 37 13 Dec 2025 · 373 MW · 34 14 Dec 2025 · 54 MW · 8 15 Dec 2025 · 12 MW · 2 16 Dec 2025 · 14 MW · 2 19 Dec 2025 · 510 MW · 43 20 Dec 2025 · 704 MW · 50 21 Dec 2025 · 843 MW · 87 22 Dec 2025 · 1,254 MW · 114 23 Dec 2025 · 483 MW · 78 24 Dec 2025 · 218 MW · 40 25 Dec 2025 · 302 MW · 39 26 Dec 2025 · 177 MW · 19 27 Dec 2025 · 132 MW · 22 29 Dec 2025 · 417 MW · 34 30 Dec 2025 · 367 MW · 37 31 Dec 2025 · 6 MW · 1 1 Jan 2026 · 377 MW · 45 2 Jan 2026 · 740 MW · 75 3 Jan 2026 · 215 MW · 25 4 Jan 2026 · 160 MW · 52 5 Jan 2026 · 38 MW · 9 6 Jan 2026 · 55 MW · 9 7 Jan 2026 · 316 MW · 15 8 Jan 2026 · 17 MW · 4
12 Dec 22 Dec 30 Dec 4 Jan

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

Fire front film How it spread from one satellite pass to the next (49 passes) and with what wind. Watch the film

The weather it burned in

36°high
36km/h · peak gust
11%lowest humidity

It had gone 36 days without rain (1 mm or more) when it started.

This area had burned before

99% of the perimeter overlaps earlier fires recorded since 2016: 18,323 ha in 2016, 15,245 ha in 2017, 3,358 ha in 2018, 9,035 ha in 2019, 18,996 ha in 2020, 8,095 ha in 2021, 5,264 ha in 2022, 16,152 ha in 2024, 1,823 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 28,136 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 18% of the area of London (283 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. Raga where it started
    23,794 ha reached on 12 Dec
    0.4 %
  2. Wau
    5,212 ha reached on 12 Dec
    0.3 %

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 2025
Built-up area< 0.1 ha
Residents< 20

Inside 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)
12 Dec 33.7 °C 18 % 31 km/h 0.0 mm Very high 40
13 Dec 33.1 °C 18 % 34 km/h 0.0 mm Very high 42
14 Dec 32.9 °C 18 % 32 km/h 0.0 mm Very high 41
15 Dec 32.6 °C 18 % 35 km/h 0.0 mm Very high 44
16 Dec 30.8 °C 18 % 35 km/h 0.0 mm Very high 44
17 Dec 31.8 °C 18 % 31 km/h 0.0 mm Very high 42
18 Dec 32.1 °C 18 % 35 km/h 0.0 mm Very high 44
19 Dec 32.5 °C 17 % 32 km/h 0.0 mm Very high 44
20 Dec 33.3 °C 17 % 30 km/h 0.0 mm Very high 42
21 Dec 34.1 °C 15 % 28 km/h 0.0 mm Very high 42
22 Dec 33.9 °C 14 % 28 km/h 0.0 mm Very high 43
23 Dec 32.5 °C 23 % 21 km/h 0.0 mm Very high 40
24 Dec 34.8 °C 17 % 21 km/h 0.0 mm Very high 42
25 Dec 35.2 °C 16 % 23 km/h 0.0 mm Very high 41
26 Dec 35.0 °C 16 % 20 km/h 0.0 mm Very high 42
27 Dec 35.8 °C 16 % 33 km/h 0.0 mm Very high 46
28 Dec 33.8 °C 11 % 33 km/h 0.0 mm Very high 49
29 Dec 33.6 °C 11 % 22 km/h 0.0 mm Very high 45
30 Dec 33.1 °C 14 % 27 km/h 0.0 mm Very high 48
31 Dec 31.5 °C 12 % 31 km/h 0.0 mm Very high 48
1 Jan 33.9 °C 11 % 28 km/h 0.0 mm Very high 47
2 Jan 35.4 °C 14 % 28 km/h 0.0 mm Very high 48
3 Jan 34.9 °C 20 % 33 km/h 0.0 mm Very high 47
4 Jan 35.0 °C 13 % 35 km/h 0.0 mm Extreme 50
5 Jan 35.1 °C 15 % 36 km/h 0.0 mm Extreme 51
6 Jan 34.8 °C 14 % 31 km/h 0.0 mm Very high 48
7 Jan 34.8 °C 15 % 30 km/h 0.0 mm Very high 48
8 Jan 35.8 °C 16 % 33 km/h 0.0 mm Very high 50
9 Jan after 35.6 °C 17 % 38 km/h 0.0 mm Extreme 53
10 Jan after 33.8 °C 18 % 36 km/h 0.0 mm Extreme 52
11 Jan after 34.3 °C 16 % 32 km/h 0.0 mm Very high 50
12 Jan after 35.2 °C 16 % 34 km/h 0.0 mm Extreme 50
13 Jan after 34.3 °C 18 % 36 km/h 0.0 mm Extreme 51
14 Jan after 33.4 °C 18 % 42 km/h 0.0 mm Extreme 55
15 Jan after 33.1 °C 18 % 38 km/h 0.0 mm Extreme 52
16 Jan after 32.9 °C 16 % 34 km/h 0.0 mm Extreme 51
17 Jan after 35.1 °C 13 % 27 km/h 0.0 mm Very high 47
18 Jan after 35.4 °C 14 % 31 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 · 5 Dec 2025
After · 15 Jan 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 18 December 2025 the air beside the fire reached 87 µg/m³ of PM2.5. That day averaged 57: 3.8 times the WHO daily guideline (15).

PM2.5 peak87 µg/m³
Days over the guideline25 days
PM10136 µg/m³
Optical depth0.80
17 Dec22 Dec27 Dec1 Jan6 Jan
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 · 881Every 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 South Sudan

Frequently asked questions

How long did the Raga fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 12 December 2025 to 8 January 2026 (28 days). The perimeter dates it from 19 December 2025 to 7 January 2026.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 28,343 hectares (283.4 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Raga (23,794 ha, 0.4 %); Wau (5,212 ha, 0.3 %).
What was the weather like?
During the fire the temperature reached 35.8 °C, humidity dropped to 11 % and gusts hit 36 km/h. The fire danger index (FWI) reached 51, class 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 · 2 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 7 January 2026 → 8 January 2026.
  2. Start date: 19 December 2025 → 12 December 2025.

RSS Changes to this page With cross-checks and a citable version

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.

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How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery; 2 polygons grouped in this page.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 19 December 2025 to 7 January 2026. 881 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.

How we build fire pages: methodology

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.