The districts of Viseu, Porto, Guarda, Santarem, Leiria, Castelo Branco, Aveiro and Coimbra will be under yellow warning between 12pm and 9pm on Saturday.

The IPMA also issued a yellow warning to the districts of Lisbon, Leiria and Coimbra because of the strong wind forecast with gusts in the order of 80 kilometres per hour between 11am and 6pm on Saturday.

The yellow warning, the third on a scale of four, reveals a risk situation for certain weather dependent activities.