The three districts will be under the yellow warning due to the persistence of low minimum temperatures until 10:00am on Friday.

The IPMA forecasts cold weather today, with slightly cloudy or clear skies, light to moderate wind, and a small rise in the minimum temperature, especially on the coast.

The minimum temperatures will fluctuate between -4 degrees Celsius (in Bragança) and 5 (in Lisbon and Faro) and the maximum between 9 (in Guarda) and 17 (in Aveiro and Braga).