The districts of Porto, Viana do Castelo, Lisbon, Leiria, Aveiro, Coimbra and Braga are all under warning for ‘maritime agitation’ from midday tomorrow until 9pm. Waves could reach over 4 metres, warn meteorologists who also forecast a small fall in overall temperatures. The last ‘weather warning’ (only last week) about wild seas still saw a number of tragic accidents and fatalities as people failed to keep away from coastal areas.