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Guaimaca fire, 14 May 2026 Guaimaca, Cedros, Talanga

Out · last detection 23 May 2026, 19:50 UTC

The fire started on 14 May 2026 in Guaimaca, Honduras, and satellites saw it burning for 10 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 6,933 hectares from heat detections, spread across 3 municipalities.

It is the 6th largest in Francisco Morazán since 2016 (of 177 with a page). Number 3 in Honduras in 2026, of 99.

Burnt area
6,933ha
GWIS perimeter (Copernicus)
Duration
10days
14 May 2026 – 23 May 2026
Municipalities hit
3
municipalities
Started on
14 May
2026
Heat detections
168
in a single hotspot: 31 MW
Danger at start
37
High · FWI index
Energy released
1.2GW
sum of detected power

Where it burned

23 May 2026
HOTSPOTS BY DAY 14 May23 May

How it evolved, day by day

14151617181920212223

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
43km/h · peak gust
24%lowest humidity

It had gone 22 days without rain (1 mm or more) when it started. Rain came after the fire: 5.3 mm on 27 May.

This area had burned before

91% of the perimeter overlaps earlier fires recorded since 2016: 842 ha in 2017, 2,617 ha in 2018, 2,465 ha in 2019, 1,096 ha in 2020, 3,659 ha in 2023, 771 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 6,296 ha that had burned before.

What happened to each town

  1. Guaimaca where it started
    5,659 ha reached on 14 May
    7.2 %
  2. 1,316 ha reached on 18 May
    1.7 %
  3. 0 ha
    0.0 %

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)
14 May 34.3 °C 25 % 31 km/h 0.0 mm High 37
15 May 34.4 °C 24 % 29 km/h 0.0 mm High 38
16 May 33.3 °C 32 % 38 km/h 0.0 mm Very high 40
17 May 31.9 °C 40 % 42 km/h 0.2 mm High 35
18 May 34.0 °C 30 % 38 km/h 0.0 mm High 36
19 May 33.4 °C 33 % 43 km/h 0.0 mm High 36
20 May 33.4 °C 31 % 38 km/h 0.0 mm High 35
21 May 35.0 °C 26 % 35 km/h 0.0 mm High 36
22 May 35.1 °C 30 % 33 km/h 0.0 mm High 36
23 May 36.0 °C 27 % 42 km/h 0.3 mm Very high 40
24 May after 34.1 °C 37 % 38 km/h 0.3 mm High 36
25 May after 32.7 °C 33 % 36 km/h 0.0 mm High 36
26 May after 32.2 °C 35 % 44 km/h 0.2 mm Very high 38
27 May after 30.8 °C 47 % 45 km/h 5.3 mm Low 8

Before and after, from space

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

Before · 7 May 2026
After · 30 May 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 14 May 2026 the air beside the fire reached 54 µg/m³ of PM2.5. That day averaged 27: 1.8 times the WHO daily guideline (15).

PM2.5 peak54 µg/m³
Days over the guideline9 days
PM1063 µg/m³
Optical depth0.58
121314151617181920212223242526
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 · 168Every 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 Honduras ›

Frequently asked questions

How long did the Guaimaca fire last?
GWIS (Copernicus) dates it between 14 May 2026 and 23 May 2026: 10 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 6,933 hectares (69.3 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 3 municipalities: Guaimaca (5,659 ha, 7.2 %); Cedros (1,316 ha, 1.7 %); Talanga (0 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 36.0 °C, humidity dropped to 24 % and gusts hit 43 km/h. The fire danger index (FWI) reached 40, class Very high.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Honduras (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: 911

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.

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We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 911.

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 4.0 International (CC BY 4.0)). 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.