At maximum risk of fire are the municipalities of de Tavira, São Brás de Alportel, Alcoutim and Castro Marim, in Faro district; Marvão, Nisa and Gavião, in Portalegre district; Vila de Rei, Sertã, Vila Velha de Ródão and Proença-a-Nova, in Castelo Branco district; Mação, Abrantes, Ferreira do Zêzere and Vila Nova da Barquinha, in Santarém district; and Figueiró dos Vinhos and Alvaiázere, in Leiria.

IPMA also warned that several municipalities from the 18 districts of mainland Portugal face very high or high risk of fire.

The island of Porto Santo and the municipalities of Machico and Santa Cruz on the island of Madeira present a very high risk of fire.

The risk of fire assessed by the IPMA comprises five levels, ranging from "reduced" to "maximum".

The calculation is done on the basis of the values observed at 1pm each day in relation to air temperature, relative humidity, wind speed and quantity of precipitation in the last 24 hours.