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PT · Portugal · Montalegre · 186 inhabitants

Wildfires in Gralhas

Gralhas, Portugal, has had 8 fires with an official perimeter since 2016: 1,467 hectares burned inside its boundaries, 68% of its area. Fire danger today: moderate (FWI 13).

Only fires of 100 ha or more get an entry: smaller ones are not in the lists or the totals on this page.

These figures leave out 3 burns that were probably not wildfires (agricultural, pasture, reed-bed or prescribed). They appear in the lists, marked.

Fire danger, today and the coming days

FWI computed from the Open-Meteo forecast
  1. Mon 2 Moderate 16° · 26 % · 30 km/h
  2. Tue 3 Moderate 11° · 44 % · 38 km/h
  3. Wed 4 Low 10° · 44 % · 24 km/h
  4. Thu 5 Low 12° · 40 % · 22 km/h
  5. Fri 6 Very low 9° · 50 % · 19 km/h
  6. Sat 7 Very low 12° · 92 % · 25 km/h
  7. Sun 8 Very low 12° · 96 % · 34 km/h
  8. Mon 9 Very low 13° · 99 % · 57 km/h

Canadian Fire Weather Index, the same system Copernicus uses, computed by WorldFires from the weather forecast and two months of past weather for fuel state. It is an estimate per municipality, not an official warning: warnings are issued by each country’s emergency service.

The municipality and its fires

Since 2016

1,467
hectares burned
68 %
of its area
8
fires
21
km²

How many times has Gralhas burned?

Gralhas has burned 8 times since 2016, in 6 years: 2016, 2019, 2021, 2022, 2025 and 2026. The most recent: Montalegre fire, 17 March 2026, with 30 hectares inside the municipality. Together they add up to 1,467 hectares burned inside the municipality, but the distinct burned area is 885 hectares, 41 % of its surface: part of it burned more than once.

  1. 1× 16
  2.   17
  3.   18
  4. 1× 19
  5.   20
  6. 1× 21
  7. 2× 22
  8.   23
  9.   24
  10. 2× 25
  11. 1× 26
8
fires
6
years with fire
1,467
cumulative ha
885
distinct ha

Fires larger than 100 hectares with a perimeter since 2016 that reached the municipality, even partly. Cumulative hectares add up every fire; the distinct area counts land that burned several times only once. Perimeters and boundaries overlaid by WorldFires.

Where it has burned most often in Portugal →

Fires that entered Gralhas

  1. 30 ha Montalegre fire, 17 March 2026 1.4% of the municipality · 247 ha in total · 19 days
  2. 121 ha Montalegre fire, October 2025 5.6% of the municipality · 281 ha in total · 6 days
  3. 500 ha Montalegre fire, 15 September 2025 23% of the municipality · 1,269 ha in total · 8 days
  4. 115 ha Gralhas fire, 6 February 2023 where it started 5.4% of the municipality · 117 ha in total · 1 day
  5. 90 ha Gralhas fire, 5 February 2023 where it started 4.2% of the municipality · 114 ha in total · 2 days
  6. 242 ha Gralhas fire, January 2022 where it started 11% of the municipality · 570 ha in total · 5 days
  7. 26 ha Santo André fire, January 2022 1.2% of the municipality · 128 ha in total · 6 days
  8. 41 ha Montalegre fire, 20 March 2021 1.9% of the municipality · 286 ha in total · 4 days
  9. 100 ha Montalegre fire, March 2019 where it started 4.6% of the municipality · 103 ha in total · 1 day
  10. 35 ha Gralhas fire, February 2017 where it started 1.6% of the municipality · 134 ha in total · 2 days
  11. 406 ha Montalegre fire, 12 September 2016 where it started 19% of the municipality · 979 ha in total · 1 day

Where this data comes from

Perimeters come from EFFIS (Copernicus, CC BY 4.0) and municipal boundaries from geoBoundaries/geoBoundaries, DG Territory (CC0 1.0 Universal (CC0 1.0) Public Domain Dedication). The area per municipality is computed by WorldFires by crossing both. The forecast is from Open-Meteo (CC BY 4.0).

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