Much of southern Europe, however, remains at high risk under hot, dry conditions on Thursday.
A drop in wind speeds allowed firefighting aircraft in the three hard-hit countries to step up water drops, concentrating on existing fire zones rather than chasing fast-moving fronts.
A helicopter drops water on a wildfire in Larouco, north-western Spain (Lalo R Villar/AP)
Authorities warned that extreme temperatures are likely to persist.
Spanish authorities reported the death of a 37-year-old volunteer firefighter who sustained severe burns in an area north of Madrid this week.
It was the third reported death in Spain because of the recent fires.
Thousands of people were evacuated from their homes in the region and still cannot return.
In Greece, the fire service said a major blaze outside the southern port city of Patras has been contained on the outskirts of urban areas after a large-scale deployment.
Local residents and volunteers work together to put out an encroaching wildfire in Larouco, north-western Spain (Lalo R Villar/AP)
Three people have been arrested in connection with the fire, which authorities said may have been deliberately set.
The European Union’s civil protection agency said it responded to requests for assistance this week from Greece, Spain, Bulgaria, Montenegro and Albania, sending firefighting planes and helicopters from other member states.
The agency said it had already activated assistance 16 times amid this summer’s wildfires as European countries have been hit by “a high number of catastrophic wildfires”.
The number of activations for 2025 already matches the total for wildfires during the entire 2024 fire season, it said.