May or September are great months to spend a weekend in Kilkenny, as the weather is generally mild, the city feels lively, and it's not too crowded with visitors. You'll find outdoor cafes open, gardens in bloom, and plenty of local events. If you prefer a quieter atmosphere, early spring can also be lovely. Whichever time you choose, Kilkenny offers charming streets, friendly locals, and a relaxed pace – perfect for a short break.