Berau fire, 2 August 2026 Berau
The fire started on 2 August 2026 in Berau, Indonesia, and satellites saw it burning for 9 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,603 hectares from heat detections, spread across a single municipality.
It is the 89th largest in East Kalimantan since 2016 (of 97 with a page). Number 892 in Indonesia in 2026, of 988.
We have the GWIS perimeter for this fire, but not yet its hotspots: NASA publishes the yearly hotspot archive only once the year closes. The page picks them up automatically when they are available.
- Burnt area
- 1,603ha
- GWIS perimeter (Copernicus)
- Duration
- 9days
- 2 Aug 2026 – 10 Aug 2026
- Municipalities hit
- 1
- regencies
- Started on
- 2 Aug
- 2026
- Danger at start
- 3
- Very low · FWI index
Where it burned
The weather it burned in
It had gone 0 days without rain (1 mm or more) when it started. Rain came after the fire: 1.2 mm on 15 Aug.
This area had burned before
17% of the perimeter overlaps earlier fires recorded since 2016: 269 ha in 2025.
What happened to each town
-
Berau where it started1,614 ha0.1 %
Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance is from the town centre to the nearest fire: staying a kilometre away does not mean it reached the houses.
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) |
|---|---|---|---|---|---|
| 2 Aug | 33.8 °C | 50 % | 20 km/h | 0.4 mm | Very low 3 |
| 3 Aug | 33.5 °C | 52 % | 19 km/h | 0.0 mm | Very low 5 |
| 4 Aug | 34.1 °C | 51 % | 20 km/h | 0.0 mm | Low 6 |
| 5 Aug | 33.2 °C | 57 % | 15 km/h | 1.1 mm | Very low 3 |
| 6 Aug | 34.1 °C | 49 % | 18 km/h | 0.0 mm | Low 7 |
| 7 Aug | 34.6 °C | 44 % | 26 km/h | 0.0 mm | Low 10 |
| 8 Aug | 34.0 °C | 48 % | 22 km/h | 0.0 mm | Low 10 |
| 9 Aug | 34.8 °C | 44 % | 22 km/h | 0.0 mm | Low 11 |
| 10 Aug | 35.0 °C | 43 % | 22 km/h | 0.0 mm | Moderate 12 |
| 11 Aug after | 34.9 °C | 45 % | 20 km/h | 0.0 mm | Moderate 12 |
| 12 Aug after | 34.8 °C | 47 % | 20 km/h | 0.0 mm | Moderate 13 |
| 13 Aug after | 35.8 °C | 44 % | 22 km/h | 0.0 mm | Moderate 13 |
| 14 Aug after | 35.8 °C | 42 % | 24 km/h | 0.0 mm | Moderate 15 |
| 15 Aug after | 35.7 °C | 41 % | 24 km/h | 1.2 mm | Moderate 12 |
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 11 August 2026 the air beside the fire reached 97 µg/m³ of PM2.5. That day averaged 61: 4.0 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)
Other fires nearby
Frequently asked questions
- How long did the Berau fire last?
- GWIS (Copernicus) dates it between 2 August 2026 and 10 August 2026: 9 days between the first and last heat detection of the perimeter.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 1,603 hectares (16.0 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Berau (1,614 ha, 0.1 %).
- What was the weather like?
- During the fire the temperature reached 35.0 °C, humidity dropped to 43 % and gusts hit 26 km/h. The fire danger index (FWI) reached 12, class Moderate.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Indonesia (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
Satellite cross-check
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
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.