In March 2021, fuel in Portugal averaged €1.563 for petrol

Petrol, monthly average€1.563/L
Diesel, monthly average€1.358/L
LPG, monthly average€0.699/L
Weekly bulletins held for March 20215

Monthly averages for Portugal across March 2021, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).