Burned area
satellite only43,008ha
Perimeter published by GWIS (Copernicus).
- Source
- GWIS (Copernicus)
- Date
- 21 Aug 2024 – 14 Sept 2024
+− cross-check
No official record is matched to this page to compare it with.
BO · Bolivia · –
San Ignacio fire, 21 August 2024 San Ignacio
Out · last detection 14 Sept 2024, 05:50 UTC
The fire started on 21 August 2024 in San Ignacio, Bolivia, and satellites saw it burning for 25 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 43,008 hectares from heat detections, spread across a single municipality.
It is the 12th largest in Beni since 2016 (of 859 with a page). Number 12 in Bolivia in 2024, of 295.
Use this data
Compare with…
Use this data
Fire page data · version 2026-10-24matches the official recordwith caveatssatellite onlymodel
When copying, the sentence is
Tick the figures you want: they make up the lede and the CSV.
Duration by satellite
satellite only25days
21 Aug 2024 to 14 Sept 2024: first and last day with fire on the page.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 14 Sept 2024, 05:50 UTC
+− cross-check
Satellites pass a few times a day and cloud or smoke can hide the fire: a lack of detections is not an official extinction. Each country’s emergency service declares a fire contained or out.
Start
satellite only21 Aug 2024
First day with fire seen by the satellites or the perimeter.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 21 Aug 2024
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only1,838
VIIRS detections at 375 m. Most intense hotspot: 211 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP)
- Date
- 21 Aug 2024 – 14 Sept 2024
+− cross-check
There is no official record to compare with. Each hotspot is a pixel detected in one satellite pass, not a separate fire.
The worst day
satellite only4,845MW
Total radiative power on 10 September 2024; hotspots that day: 262.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 10 Sept 2024
+− cross-check
Fire radiative power (FRP) measures the energy the fire gives off when the satellite passes. Added up by day, it compares intensity, not area.
Danger at the start
model37.4FWI · high
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 12.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 21 Aug 2024, local noon
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
This is an index computed from weather model data, not a measurement of the fire nor an official warning. Danger warnings are issued by each country’s authority. Emergency number and official warnings
Weather during the fire
model38.7°C · 29% RH
High of 38.7 °C and minimum humidity of 29% on 10 September 2024; gusts of 53 km/h on 25 August 2024.
- Source
- weather model at the fire’s grid cell
- Date
- 21 Aug 2024 – 14 Sept 2024
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
These are model values for a cell of about 25 km, not from a weather station: they may differ from what was measured on the ground.
Living inside
model≈ 60people
Estimated residents inside the perimeter and 0.51 ha of built-up area (100 m grid, epoch 2025).
- Source
- GHSL R2023A · JRC
- Date
- calculated on 24 October 2026
+− cross-check
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.
This page’s change log has been kept since 24 October 2026: every night what it publishes is compared and the difference is logged. Anything earlier is reconstructed from each source’s date and marked as reconstructed.
Show
-
· reconstructed weatherWeather and FWI computed from the ERA5 reanalysis
-
· reconstructed GHSLPopulation and built-up area computed
What was saved on 24 October 2026
Every night a snapshot of what the page shows is saved. If anything changes, it appears in the list as a log entry.
- Area
- 43,008 ha
- Dates
- 21 Aug 2024 – 14 Sept 2024
- Name
- San Ignacio
- Official record
- —
Versioned permanent link
https://worldfires.org/en/fire/san-ignacio-beni-2024-08-3?v=2026-10-24A version keeps the area, dates, name and official record; the area as it was logged (changes under 2% are not logged). The map, hotspots and weather always show today’s data.
Citation
A lede of about 60 words figures only, no adjectives
CSV for this fire san-ignacio-beni-2024-08-3.csv · daily, no individual hotspots
| fecha | focos_viirs | frp_mw | tmax_c | tmin_c | hr_min_pct | viento_max_kmh | racha_max_kmh | precip_mm | fwi | clase_fwi | dentro_del_incendio |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024-08-21 | 1 | 6 | 37 | 24.2 | 38 | 17.6 | 42.5 | 0 | 37.4 | alto | 1 |
| 2024-08-22 | 8 | 45 | 37 | 25.5 | 35 | 18 | 45.4 | 0 | 38.4 | muy_alto | 1 |
| 2024-08-23 | 0 | 0 | 33.8 | 24.1 | 42 | 11.7 | 31.7 | 0.3 | 24.1 | alto | 1 |
| 2024-08-24 | 5 | 22 | 25 | 17.6 | 53 | 19 | 42.1 | 1.4 | 29.6 | alto | 1 |
| 2024-08-25 | 0 | 0 | 23 | 15.7 | 28 | 23.3 | 52.6 | 0.8 | 20.8 | moderado | 1 |
| 2024-08-26 | 19 | 115 | 25.9 | 17 | 21 | 15.9 | 36.7 | 0 | 28.6 | alto | 1 |
| 2024-08-27 | 7 | 54 | 30.3 | 14.7 | 30 | 7.9 | 14.4 | 0 | 23.5 | alto | 1 |
| 2024-08-28 | 18 | 185 | 33.4 | 16.8 | 30 | 9 | 18.7 | 0 | 23.4 | alto | 1 |
| 2024-08-29 | 49 | 851 | 37.4 | 18.1 | 29 | 9.1 | 25.2 | 0 | 27.3 | alto | 1 |
| 2024-08-30 | 48 | 521 | 37 | 19.5 | 31 | 9.3 | 26.6 | 0 | 23.8 | alto | 1 |
| 2024-08-31 | 9 | 88 | 35.8 | 22.7 | 36 | 10.4 | 23.8 | 0 | 27 | alto | 1 |
| 2024-09-01 | 71 | 1,349 | 31 | 22.5 | 32 | 18.8 | 39.6 | 0 | 40.5 | muy_alto | 1 |
| 2024-09-02 | 116 | 1,039 | 33.8 | 18.3 | 31 | 12.4 | 23.8 | 0 | 28.1 | alto | 1 |
| 2024-09-03 | 174 | 1,645 | 37.1 | 20.8 | 30 | 14.4 | 35.6 | 0 | 33.1 | alto | 1 |
| 2024-09-04 | 128 | 1,499 | 36.7 | 22.3 | 37 | 13.2 | 37.4 | 0 | 35.9 | alto | 1 |
| 2024-09-05 | 144 | 1,408 | 31 | 24.9 | 32 | 23.6 | 47.9 | 0 | 46.5 | muy_alto | 1 |
| 2024-09-06 | 182 | 1,593 | 31.6 | 20.1 | 31 | 11.2 | 18.7 | 0 | 25.7 | alto | 1 |
| 2024-09-07 | 76 | 1,108 | 35.6 | 19.2 | 30 | 13.9 | 33.1 | 0 | 34.5 | alto | 1 |
| 2024-09-08 | 128 | 1,565 | 37.4 | 20.3 | 32 | 10 | 29.9 | 0 | 33.5 | alto | 1 |
| 2024-09-09 | 177 | 2,853 | 38.2 | 20.5 | 29 | 9.6 | 25.6 | 0 | 32.3 | alto | 1 |
| 2024-09-10 | 262 | 4,845 | 38.7 | 21.8 | 29 | 12.3 | 30.6 | 0 | 32.7 | alto | 1 |
| 2024-09-11 | 90 | 1,366 | 38.3 | 25.4 | 34 | 18.1 | 42.1 | 0 | 45.5 | muy_alto | 1 |
| 2024-09-12 | 113 | 647 | 33.3 | 25.9 | 57 | 12.9 | 35.3 | 1.9 | 9.1 | bajo | 1 |
| 2024-09-13 | 2 | 11 | 37.4 | 24.6 | 44 | 14.1 | 40.3 | 0 | 25.5 | alto | 1 |
| 2024-09-14 | 11 | 27 | 36.9 | 21.6 | 38 | 17.7 | 34.2 | 13.5 | 31.6 | alto | 1 |
| 2024-09-15 | 0 | 0 | 25.6 | 19.4 | 45 | 16.4 | 37.1 | 2 | 5 | muy_bajo | 0 |
It is generated in your browser from this page’s data: one file per fire, aggregated by day and without individual hotspots.
Live widget for your story
It updates itself while the fire is still active and links to this page. Free, with the attribution shown at the bottom.
Sources for this page: GWIS (Copernicus), NASA FIRMS (VIIRS), ERA5 (ECMWF/Copernicus C3S) · Open-Meteo.com (CC BY 4.0), GHSL (JRC). Open-Meteo.com · How we build fire pages: methodology
- Burnt area
- 43,008ha
- GWIS perimeter (Copernicus)
- Duration
- 25days
- 21 Aug 2024 – 14 Sept 2024
- Municipalities hit
- 1
- municipalities
- Started on
- 21 Aug
- 2024
- Heat detections
- 1,838
- in a single hotspot: 211 MW
- Danger at start
- 37
- High · FWI index
- Average daily power
- 993MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
21 Aug14 Sept
14 Sept 2024
How it evolved, day by day
21 Aug
28 Aug
2 Sept
10 Sept
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
39°high
53km/h · peak gust
21%lowest humidity
It had gone 12 days without rain (1 mm or more) when it started. Rain came after the fire: 2.0 mm on 15 Sept.
This area had burned before
79% of the perimeter overlaps earlier fires recorded since 2016: 710 ha in 2016, 2,186 ha in 2017, 9,577 ha in 2018, 10,639 ha in 2019, 2,107 ha in 2020, 14,215 ha in 2021, 20,062 ha in 2022, 13,504 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 33,868 ha that had burned before.
- 8,872 ha San Ignacio fire, August 2022 128,905 ha in total; the hectares shown are those it shares with this fire
- 7,962 ha San Ignacio fire, September 2022 10,910 ha in total; the hectares shown are those it shares with this fire
- 6,889 ha San Ignacio fire, September 2019 11,209 ha in total; the hectares shown are those it shares with this fire
- 5,401 ha San Ignacio fire, August 2021 7,979 ha in total; the hectares shown are those it shares with this fire
- 5,108 ha San Ignacio fire, September 2018 9,613 ha in total; the hectares shown are those it shares with this fire
- 363 ha San Ignacio fire, June 2022 3,419 ha in total; the hectares shown are those it shares with this fire
- 334 ha San Ignacio fire, November 2023 17,845 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
-
43,134 ha reached on 21 Aug1.7 %
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 2025Built-up area0.51 ha
Residents≈ 60
Inside the perimeter there were about 0.51 hectares of built-up land and about 60 residents (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) |
|---|---|---|---|---|---|
| 21 Aug | 37.0 °C | 38 % | 42 km/h | 0.0 mm | High 37 |
| 22 Aug | 37.0 °C | 35 % | 45 km/h | 0.0 mm | Very high 38 |
| 23 Aug | 33.8 °C | 42 % | 32 km/h | 0.3 mm | High 24 |
| 24 Aug | 25.0 °C | 53 % | 42 km/h | 1.4 mm | High 30 |
| 25 Aug | 23.0 °C | 28 % | 53 km/h | 0.8 mm | Moderate 21 |
| 26 Aug | 25.9 °C | 21 % | 37 km/h | 0.0 mm | High 29 |
| 27 Aug | 30.3 °C | 30 % | 14 km/h | 0.0 mm | High 24 |
| 28 Aug | 33.4 °C | 30 % | 19 km/h | 0.0 mm | High 23 |
| 29 Aug | 37.4 °C | 29 % | 25 km/h | 0.0 mm | High 27 |
| 30 Aug | 37.0 °C | 31 % | 27 km/h | 0.0 mm | High 24 |
| 31 Aug | 35.8 °C | 36 % | 24 km/h | 0.0 mm | High 27 |
| 1 Sept | 31.0 °C | 32 % | 40 km/h | 0.0 mm | Very high 40 |
| 2 Sept | 33.8 °C | 31 % | 24 km/h | 0.0 mm | High 28 |
| 3 Sept | 37.1 °C | 30 % | 36 km/h | 0.0 mm | High 33 |
| 4 Sept | 36.7 °C | 37 % | 37 km/h | 0.0 mm | High 36 |
| 5 Sept | 31.0 °C | 32 % | 48 km/h | 0.0 mm | Very high 46 |
| 6 Sept | 31.6 °C | 31 % | 19 km/h | 0.0 mm | High 26 |
| 7 Sept | 35.6 °C | 30 % | 33 km/h | 0.0 mm | High 34 |
| 8 Sept | 37.4 °C | 32 % | 30 km/h | 0.0 mm | High 34 |
| 9 Sept | 38.2 °C | 29 % | 26 km/h | 0.0 mm | High 32 |
| 10 Sept | 38.7 °C | 29 % | 31 km/h | 0.0 mm | High 33 |
| 11 Sept | 38.3 °C | 34 % | 42 km/h | 0.0 mm | Very high 46 |
| 12 Sept | 33.3 °C | 57 % | 35 km/h | 1.9 mm | Low 9 |
| 13 Sept | 37.4 °C | 44 % | 40 km/h | 0.0 mm | High 26 |
| 14 Sept | 36.9 °C | 38 % | 34 km/h | 13.5 mm | High 32 |
| 15 Sept after | 25.6 °C | 45 % | 37 km/h | 2.0 mm | Very low 5 |
Its twins: fires that started in the same weather
It started with an FWI of 37.4, a minimum humidity of 38% and 12 days without rain. Fires in the area that started in weather like this since 2016: 23.
FWI at the start
37.4
Minimum humidity
38 %
Days without rain
12
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · San Ignacio fire, 21 August 2024
43,008 ha
25 days
FWI 37.4
Min. humidity 38 %
San Javier fire, September 2024
12,672 ha
4 days
FWI 37.1
Min. humidity 37 %
86 km away, in 2024
First rain (1 mm or more) after it ended: none in the following ten days.
San Ramón fire, August 2021
11,371 ha
16 days
FWI 38.1
Min. humidity 40 %
143 km away, in 2021
First rain (1 mm or more) after it ended: 5.5 mm on 27 Aug.
San Ignacio fire, September 2024
6,132 ha
16 days
FWI 31.0
Min. humidity 38 %
26 km away, in 2024
First rain (1 mm or more) after it ended: 1.5 mm on 10 Oct.
Huacaraje fire, September 2024
5,135 ha
22 days
FWI 38.6
Min. humidity 36 %
181 km away, in 2024
First rain (1 mm or more) after it ended: 7.8 mm on 17 Oct.
Exaltación fire, September 2024
7,620 ha
22 days
FWI 37.1
Min. humidity 36 %
220 km away, in 2024
First rain (1 mm or more) after it ended: 1.0 mm on 18 Oct.
What happened to them
- 14 days
- median duration
- 7,559 ha
- median area
- 26 %
- went past 10,000 ha
- 5.8 mm
- rain at the end (median; 20 of 23 had it)
It was 5.7 times larger than the median of its twins and lasted 25 days, against 14 days.
None of its 23 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In 3 of 23, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 5.8 mm.
This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it
How it ended
2.0 mmfirst rain
15 Septthe day after it ended
53km/h · max. gust
It was considered over on 14 Sept, and on 15 Sept 2.0 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 20 of 23, with a median of 5.8 mm.
Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)
How a twin is chosen
- Same area: fires that have already ended, less than 250 km from this one, since 2016.
- Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
- Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
- Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
- They are sorted by similarity, and the outlines of the first five are drawn.
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
↔
Before · 14 Aug 2024
After · 21 Sept 2024
Sentinel-2 did not pass over on that day. Try another date, or use false colour, which is daily.
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 6 September 2024 the air beside the fire reached 1,084 µg/m³ of PM2.5. That day averaged 575: 38 times the WHO daily guideline (15).
PM2.5 peak1,084 µg/m³
Days over the guideline31 days
PM101,546 µg/m³
Optical depth5.52
WHO 15
17 Aug24 Aug31 Aug7 Sept14 Sept
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 · 1,838Every 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 time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
Frequently asked questions
- How long did the San Ignacio fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 21 August 2024 to 14 September 2024 (25 days). The perimeter dates it from 26 August 2024 to 14 September 2024.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 43,008 hectares (430.1 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered San Ignacio (43,134 ha, 1.7 %).
- What was the weather like?
- During the fire the temperature reached 38.7 °C, humidity dropped to 21 % and gusts hit 53 km/h. The fire danger index (FWI) reached 46, class Very high.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Bolivia (geoBoundaries). It is not an official report.
- How did the fires that started in similar weather in this area end?
- Fires less than 250 km away that started since 2016 with a similar FWI, humidity and dry spell: 23. Their median duration was 14 days and their median area 7,559 ha; 26 % went past 10,000 ha. None of its 23 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In 3 of 23, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 5.8 mm.
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: 119 · 110 · 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.
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.
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 26 August 2024 to 14 September 2024. 1,838 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 ADM3 (Public Domain). 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.