A Fire in the Pines of the Serra d'Ossa Kept 268 Firefighters at Work Through the Night Above Estremoz
The alert came at 19:40 on Saturday and the fire was still running at four in the morning, with 102 vehicles committed. A second fire at Ponte de Sor was half contained, and seven districts remain under a yellow heat warning.
At four o'clock on Sunday morning, 268 firefighters and 102 vehicles were still working a fire in pine and scrub on the Serra d'Ossa, above Estremoz in the Évora district. Civil protection sources told Lusa the fire remained active and that no injuries had been reported.
The alert came in at 19:40 on Saturday. By late evening the Alentejo Central sub-regional command had more than a hundred people on the ground; by the early hours that had more than doubled. A second fire, at Ervideira in Ponte de Sor, in the Portalegre district, began at 22:36 and was being fought by 103 firefighters with 36 vehicles. That one was reported half contained.
A hot week behind it
The two fires close a week in which the mainland went back into serious heat. IPMA raised the number of districts under a yellow heat warning from fourteen to seventeen on Saturday, holding until 21:00. Seven districts remain under the warning on Sunday. Thursday 3 September was the fourth hottest September day recorded in Portugal in 85 years, with the highest reading taken at Alcochete. Eleven councils across four districts were placed at maximum fire danger on Friday, and the health directorate advised vulnerable people to stay indoors because of Saharan dust in the air.
The Serra d'Ossa is a wooded ridge running between Estremoz, Redondo and Borba, an unusually forested pocket in a district otherwise given over to cork oak pasture and cereal. Pine and dense scrub on a slope, after a run of days above 35 degrees, is close to the worst combination available to the Alentejo.
The season in context
None of this changes the shape of an unusually mild year. Burnt area is down about three quarters on 2025, even though the number of ignitions is up around 7 percent, and the specialists who have looked at it credit the weather rather than any change in policy. The corollary is that a hot September can still undo a quiet summer, which is why the critical period runs to the end of the month.
Alentejo Central is not a region with spare capacity. This year's DECIR deployment put 393 operatives and 99 vehicles into the sub-region for the July to September phase. Saturday night's fire alone accounted for more than two thirds of those people and almost all of the vehicles.
What this means for expats
- Check before you drive into the interior: both fires are near main routes across the Alentejo, and roads are closed without notice while aircraft work.
- The critical period has not ended: restrictions on burning, machinery use and fireworks stay in force through September in the areas at highest danger.
- Heat and dust are a health matter, not only a comfort one: three summer heat spells were linked to about 680 excess deaths earlier this year.
- Know where the risk concentrates: four fifths of the land burnt since 2020 sits in under a third of the mainland, and most of that ground is more than fifteen minutes from a fire station.
- Warnings move quickly: IPMA revised Saturday's district list upwards during the day, so a morning check is not enough on a hot weekend.
