Mainzer Weinmarkt ★ 4.8
Rheinhessen's canonical regional fair, with more than 90 producers pouring across two consecutive weekends on the Volkspark and Rosengarten meadows. Mainz holds the German seat of the Great Wine Capitals Global Network since 2018, and the Weinmarkt is the consortium's headline event.
Tip: Pick a weekday afternoon rather than a Saturday night; the grower stands are calmer and you can have a real conversation with the producer pouring.