At maximum risk of fire are the municipalities of Lagos, Portimão, Monchique, Silves, Loulé, São Brás de Alportel and Tavira (Faro), Portalegre, Marvão, Gavião, Castelo de Vide and Nisa (Portalegre), Mação, Abrantes, Sardoal, Chamusca, Constância, Vila Nova da Barquinha, Tomar, Ferreira do Zêzere (Santarém) and Vila de Rei (Castelo Branco).
The IPMA also placed several municipalities of all districts, except Viana do Castelo and Braga, in very high and high risk of fire.
The fire risk determined by IPMA has five levels, ranging from low to maximum.
The calculations are obtained from the air temperature, relative humidity, wind speed and amount of precipitation in the last 24 hours.
The risk of fire will remain high in some regions of the continent at least until Saturday.
The IPMA forecasts for today on the mainland slightly cloudy or clear sky and wind sometimes strong on the west coast and the highlands, sometimes with gusts up to 75 kilometres per hour in the Centre and South.
It is also expected a small decrease in minimum temperature and a small increase in maximum temperature, especially in the interior.
The minimum temperatures will range between 8 degrees Celsius (in Bragança) and 16 (in Faro) and the maximum between 20 (in Porto, Viana do Castelo and Aveiro) and 32 (in Faro).