Yesterday's image: fire shows in orange and red. NASA MODIS
Red dots: heat detected by satellite in the last 48h. NASA FIRMS
The story so far
An active wildfire is currently burning near Mesão Frio, Portugal, having started on November 3, 2026. Satellites are picking up a low heat signature over the area, with NASA FIRMS recording seven heat detections in the past 48 hours, reflecting the current spread of the fire front. Based on the number of satellite hotspots, the size of the fire is roughly estimated at 130 hectares, which is equivalent to 321 acres.
This incident occurs outside the region's typical fire season, which generally runs from June to October. Meanwhile, the broader context for the country shows that 71,525 hectares have burned so far in 2026, marking a figure that sits 32% below the two-decade average.
In context
This wildfire has been burning in Portugal for less than a day. So far it has affected roughly 130 ha (321 acres) — about 1.3 km². That size is an estimate from satellite hotspots, not a measured area.
In the Northern Hemisphere, wildfire activity usually peaks during the warm, dry months — roughly May through October.
The bigger picture in Portugal
Across Portugal, roughly 71,525 hectares have burned so far in 2026 — 32% below the two-decade average. Data from Copernicus EFFIS.
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