May to September is usually the most popular time to visit Dublin, especially if you’re focused on weekend trips, walkable, and city breaks. Outside that window, weather, crowds, and prices can change—so the neighborhood you pick matters more.
If your dates are fixed, choose between Temple Bar edge / Centre and Georgian Quarter first, then decide whether central stays or a more spacious stay fits your days better.
If your dates are flexible, shifting a week or two around May to September can mean easier availability and a less crowded feel.
Docklands is useful when Temple Bar edge / Centre feels too busy or when you want a different balance of price, quiet, and access.
Pack a little buffer into your arrival day in Dublin so the first night is about settling in, not racing across town.