TheFork users who ate in Saint-Émilion have said really good things about Lard et Bouchon, Maison Politi and La Renaissance. Maybe you should give them a try!
Some of the more popular Traditional restaurants having a terrace in Saint-Émilion according to TheFork users include:
Le Jardin, with a 9.5 rating
La Table de Pavie, with a 9.7 rating
Lard et Bouchon, with a 9.2 rating
In those days what better than a traditional restaurant to retrieve the comfort of eating at home.