San Joaquín fire, 15 August 2020 San Joaquín
The fire started on 15 August 2020 in San Joaquín, Bolivia, and satellites saw it burning for 45 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 87,559 hectares from heat detections, spread across a single municipality.
This page is probably a fire complex, not a single fire. GWIS merges into one perimeter the fires that touch over weeks, which in large burning seasons can join dozens of separate fires. The total area is reliable; the origin and dates refer to the whole complex.
Other fire pages in the same area and on the same dates:
It is the 4th largest in Beni since 2016 (of 904 with a page). Number 2 in Bolivia in 2020, of 211.
Compare with…
- Burnt area
- 87,559ha
- GWIS perimeter (Copernicus)
- Duration
- 45days
- 15 Aug 2020 – 28 Sept 2020
- Municipalities hit
- 1
- municipalities
- Started on
- 15 Aug
- 2020
- Heat detections
- 3,662
- in a single hotspot: 459 MW
- Danger at start
- 25
- High · FWI index
- Average daily power
- 1.4GW
- 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 20 days without rain (1 mm or more) when it started. Rain came after the fire: 1.3 mm on 29 Sept.
This area had burned before
42% of the perimeter overlaps earlier fires recorded since 2016: 26,782 ha in 2016, 16,575 ha in 2017, 2,286 ha in 2019. Part of it burned more than once, so the yearly figures add up to more than the 36,632 ha that had burned before.
- 12,883 ha San Joaquín fire, August 2016 27,782 ha in total; the hectares shown are those it shares with this fire
- 12,575 ha San Joaquín fire, October 2017 20,073 ha in total; the hectares shown are those it shares with this fire
- 6,427 ha San Joaquín fire, July 2016 8,169 ha in total; the hectares shown are those it shares with this fire
- 145 ha San Joaquín fire, September 2019 4,231 ha in total; the hectares shown are those it shares with this fire
- 5 ha San Ramón fire, July 2019 101,140 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
-
88,218 ha reached on 15 Aug10 %
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 2020Inside the perimeter there were about 1.1 hectares of built-up land and about 100 residents (GHSL 2020, 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.
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) |
|---|---|---|---|---|---|
| 15 Aug | 34.3 °C | 50 % | 40 km/h | 0.3 mm | High 25 |
| 16 Aug | 35.0 °C | 44 % | 45 km/h | 0.2 mm | High 25 |
| 17 Aug | 33.9 °C | 38 % | 42 km/h | 0.0 mm | High 26 |
| 18 Aug | 35.9 °C | 35 % | 48 km/h | 0.0 mm | High 34 |
| 19 Aug | 35.1 °C | 43 % | 53 km/h | 0.0 mm | High 34 |
| 20 Aug | 27.4 °C | 52 % | 56 km/h | 4.0 mm | Low 9 |
| 21 Aug | 18.7 °C | 46 % | 56 km/h | 0.0 mm | Moderate 17 |
| 22 Aug | 21.0 °C | 36 % | 36 km/h | 0.0 mm | Moderate 18 |
| 23 Aug | 27.5 °C | 40 % | 17 km/h | 0.0 mm | Moderate 17 |
| 24 Aug | 32.4 °C | 42 % | 33 km/h | 0.0 mm | High 22 |
| 25 Aug | 34.0 °C | 36 % | 38 km/h | 0.0 mm | High 27 |
| 26 Aug | 34.4 °C | 38 % | 39 km/h | 0.0 mm | High 28 |
| 27 Aug | 35.9 °C | 36 % | 32 km/h | 0.0 mm | High 27 |
| 28 Aug | 37.5 °C | 33 % | 25 km/h | 0.0 mm | High 26 |
| 29 Aug | 35.6 °C | 38 % | 32 km/h | 0.0 mm | High 29 |
| 30 Aug | 35.4 °C | 50 % | 28 km/h | 0.6 mm | High 22 |
| 31 Aug | 30.7 °C | 57 % | 30 km/h | 1.6 mm | Low 10 |
| 1 Sept | 32.8 °C | 45 % | 29 km/h | 0.0 mm | Moderate 20 |
| 2 Sept | 31.6 °C | 44 % | 31 km/h | 0.0 mm | High 22 |
| 3 Sept | 33.1 °C | 40 % | 24 km/h | 0.0 mm | High 23 |
| 4 Sept | 34.6 °C | 41 % | 19 km/h | 0.0 mm | High 22 |
| 5 Sept | 36.1 °C | 36 % | 31 km/h | 0.0 mm | High 28 |
| 6 Sept | 35.2 °C | 42 % | 31 km/h | 0.0 mm | High 26 |
| 7 Sept | 32.3 °C | 45 % | 32 km/h | 2.3 mm | Moderate 14 |
| 8 Sept | 33.0 °C | 39 % | 32 km/h | 0.0 mm | High 24 |
| 9 Sept | 35.8 °C | 39 % | 17 km/h | 0.0 mm | High 22 |
| 10 Sept | 36.3 °C | 39 % | 19 km/h | 0.0 mm | High 23 |
| 11 Sept | 36.3 °C | 38 % | 35 km/h | 0.0 mm | High 29 |
| 12 Sept | 35.1 °C | 44 % | 29 km/h | 0.0 mm | High 27 |
| 13 Sept | 35.9 °C | 40 % | 25 km/h | 0.1 mm | High 26 |
| 14 Sept | 31.0 °C | 60 % | 34 km/h | 0.6 mm | High 22 |
| 15 Sept | 30.3 °C | 50 % | 33 km/h | 0.0 mm | High 22 |
| 16 Sept | 34.7 °C | 43 % | 20 km/h | 0.0 mm | High 22 |
| 17 Sept | 35.2 °C | 40 % | 19 km/h | 0.0 mm | High 24 |
| 18 Sept | 32.7 °C | 54 % | 21 km/h | 0.1 mm | High 22 |
| 19 Sept | 34.6 °C | 42 % | 30 km/h | 0.0 mm | High 24 |
| 20 Sept | 30.4 °C | 56 % | 42 km/h | 9.6 mm | Low 7 |
| 21 Sept | 30.3 °C | 52 % | 38 km/h | 0.0 mm | Moderate 14 |
| 22 Sept | 28.1 °C | 48 % | 42 km/h | 2.5 mm | Low 8 |
| 23 Sept | 34.2 °C | 41 % | 24 km/h | 0.0 mm | Moderate 16 |
| 24 Sept | 35.3 °C | 44 % | 17 km/h | 0.1 mm | Moderate 18 |
| 25 Sept | 36.2 °C | 42 % | 29 km/h | 0.2 mm | High 22 |
| 26 Sept | 34.8 °C | 49 % | 48 km/h | 0.0 mm | High 28 |
| 27 Sept | 34.0 °C | 51 % | 44 km/h | 0.3 mm | High 25 |
| 28 Sept | 30.4 °C | 66 % | 24 km/h | 3.7 mm | Very low 4 |
| 29 Sept after | 32.8 °C | 59 % | 28 km/h | 1.3 mm | Very low 5 |
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.
Detections table · 3,662Every 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 San Joaquín fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 15 August 2020 to 28 September 2020 (45 days). The perimeter dates it from 17 August 2020 to 24 September 2020.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 87,559 hectares (875.6 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered San Joaquín (88,218 ha, 10 %).
- What was the weather like?
- During the fire the temperature reached 37.5 °C, humidity dropped to 33 % and gusts hit 56 km/h. The fire danger index (FWI) reached 34, class 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.
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 · 2 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
- Last day with fire: 24 September 2020 → 28 September 2020.
- Start date: 17 August 2020 → 15 August 2020.
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; 3 polygons grouped in this page.
- Dates adjusted with the VIIRS detections inside the perimeter, which said 17 August 2020 to 24 September 2020. 3,662 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 2020, 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.