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BJ · Benin · –

Tanguiéta fire, 13 December 2022 Tanguiéta

Out · last detection 22 Dec 2022, 12:37 UTC

The fire started on 13 December 2022 in Tanguiéta, Benin, and satellites saw it burning for 10 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 12,588 hectares from heat detections, spread across a single municipality.

It is the 17th largest in Atakora since 2016 (of 420 with a page). Number 4 in Benin in 2022, of 96.

Burnt area
12,588ha
GWIS perimeter (Copernicus)
Duration
10days
13 Dec 2022 – 22 Dec 2022
Municipalities hit
1
communes
Started on
13 Dec
2022
Heat detections
319
in a single hotspot: 296 MW
Danger at start
55
Extreme · FWI index
Average daily power
520MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 13 Dec22 Dec
22 Dec 2022

How it evolved, day by day

13 Dec 2022 · 338 MW · 46 14 Dec 2022 · 2,249 MW · 68 15 Dec 2022 · 1,717 MW · 137 16 Dec 2022 · 103 MW · 39 18 Dec 2022 · 3 MW · 5 19 Dec 2022 · 77 MW · 7 20 Dec 2022 · 11 MW · 5 21 Dec 2022 · 1 MW · 1 22 Dec 2022 · 183 MW · 11
14 Dec 18 Dec 20 Dec 22 Dec

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

The weather it burned in

36°high
44km/h · peak gust
11%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started.

This area had burned before

100% of the perimeter overlaps earlier fires recorded since 2016: 3,290 ha in 2016, 1,498 ha in 2017, 12,201 ha in 2019, 1,009 ha in 2020, 7,616 ha in 2021. Part of it burned more than once, so the yearly figures add up to more than the 12,585 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 7.9% of the area of London (126 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. Tanguiéta where it started
    12,684 ha reached on 13 Dec
    2.3 %

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 2020
Built-up area0.10 ha
Residents< 20

Inside the perimeter there were about 0.10 hectares of built-up land and almost nobody lived there (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)

Started with Very dry air: 49 % of the area in Benin 60 days without rain: 45 % of the area in Benin

Day High Min. humidity Peak gust Rain Danger (FWI)
13 Dec 36.0 °C 13 % 34 km/h 0.0 mm Extreme 55
14 Dec 35.8 °C 11 % 33 km/h 0.0 mm Extreme 54
15 Dec 35.8 °C 11 % 30 km/h 0.0 mm Extreme 52
16 Dec 35.8 °C 11 % 29 km/h 0.0 mm Extreme 52
17 Dec 33.4 °C 16 % 32 km/h 0.0 mm Extreme 52
18 Dec 34.5 °C 16 % 37 km/h 0.0 mm Extreme 56
19 Dec 34.4 °C 13 % 41 km/h 0.0 mm Extreme 61
20 Dec 33.5 °C 16 % 40 km/h 0.0 mm Extreme 59
21 Dec 32.4 °C 16 % 42 km/h 0.0 mm Extreme 60
22 Dec 31.3 °C 19 % 44 km/h 0.0 mm Extreme 57
23 Dec after 30.7 °C 16 % 40 km/h 0.0 mm Extreme 54
24 Dec after 30.4 °C 16 % 41 km/h 0.0 mm Extreme 56
25 Dec after 30.6 °C 19 % 41 km/h 0.0 mm Extreme 54
26 Dec after 32.6 °C 17 % 38 km/h 0.0 mm Extreme 52
27 Dec after 33.3 °C 16 % 38 km/h 0.0 mm Extreme 52
28 Dec after 33.3 °C 16 % 42 km/h 0.0 mm Extreme 56
29 Dec after 33.2 °C 17 % 41 km/h 0.0 mm Extreme 55
30 Dec after 32.7 °C 12 % 45 km/h 0.0 mm Extreme 59
31 Dec after 31.8 °C 11 % 45 km/h 0.0 mm Extreme 59
1 Jan after 31.0 °C 13 % 41 km/h 0.0 mm Extreme 56

Its twins: fires that started in the same weather

It started with an FWI of 54.8, a minimum humidity of 13% and more than two months without rain. Fires in the area that started in weather like this since 2016: 116.

FWI at the start 54.8
Minimum humidity 13 %
Days without rain 60+
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Kérou fire, January 2021
1,188 ha 3 days FWI 55.4 Min. humidity 13 % 16 km away, in 2021

First rain (1 mm or more) after it ended: none in the following ten days.

What happened to them

4 days
median duration
1,600 ha
median area
100 %
went past 1,000 ha
—
rain at the end (median; 0 of 116 had it)

It was 7.9 times larger than the median of its twins and lasted 10 days, against 4 days.

Only 2 of its 116 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 none of them did 1 mm fall in the ten days after the end: they all went out without rain.

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

—first rain
—no rain in ten days
44km/h · max. gust

It was considered over on 22 Dec, and not even 1 mm fell in the following ten days: it went out without rain. None of its 116 twins had rain when they ended.

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.

How we calculate it

Before and after, from space

Drag the line to compare the same ground before the fire and after it.

Before · 6 Dec 2022
After · 29 Dec 2022

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 16 December 2022 the air beside the fire reached 115 µg/m³ of PM2.5. That day averaged 66: 4.4 times the WHO daily guideline (15).

PM2.5 peak115 µg/m³
Days over the guideline12 days
PM10181 µg/m³
Optical depth0.78
11 Dec14 Dec17 Dec20 Dec23 Dec
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 · 319Every 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 Benin

Frequently asked questions

How long did the Tanguiéta fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 13 December 2022 to 22 December 2022 (10 days). The perimeter dates it from 13 December 2022 to 16 December 2022.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 12,588 hectares (125.9 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Tanguiéta (12,684 ha, 2.3 %).
What was the weather like?
During the fire the temperature reached 36.0 °C, humidity dropped to 11 % and gusts hit 44 km/h. The fire danger index (FWI) reached 61, class Extreme.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Benin (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: 116. Their median duration was 4 days and their median area 1,600 ha; 100 % went past 1,000 ha. Only 2 of its 116 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 none of them did 1 mm fall in the ten days after the end: they all went out without rain.

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.
  1. Last day with fire: 21 December 2022 → 22 December 2022.

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
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How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery; 4 polygons grouped in this page.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 13 December 2022 to 16 December 2022. 319 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.

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 (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.