Coordinates: 40°40′20.7″N 8°27′11″W / 40.672417°N 8.45306°W / 40.672417; -8.45306 Sernada do Vouga is a small Portuguese village in the parish of Macinhata do Vouga, in Águeda Municipality in Aveiro District.
Placed a few meters, downstream, of the estuary of Caima River and is bathed by Vouga River. Since the beginning of the 20th century, a centre for railroad activity, through the construction of Linha do Vale do Vouga and its location at the junction of the three 'legs' of the route, i.e. Espinho, Aveiro and Viseu. With the closure, in January 1990, of the link Sernada - Viseu, it lost part of its role but it retains the EMEF workshop for the Vouga line's rolling stock. The Vouga Line is now Portugal's only active narrow-gauge railway and is under threat of closure.