Late spring through early autumn (May-September) offers the calmest seas for sailing tours and warmest water for swimming. July and August get crowded and hot. April and October give you pleasant weather with smaller crowds, though some boat operators run reduced schedules - check before you go.

Popular options like full-day catamaran trips and Capo Caccia sailing excursions can fill up 1-2 weeks ahead in peak season. Private boat tours and multi-hour shore tours offer more flexibility, but booking a week or so in advance keeps your options open.

If you want real context about Alghero's Nuragic past or Catalan heritage, a private guide makes a big difference. These tours typically include hotel pickup and deliver stories you won't get alone. Group tours are cheaper, but private archaeological tours give you the kind of detail that actually sticks.

Most multi-hour sails include time on the water, swimming stops, and lunch or wine service onboard. Some tours add visits to sea caves or archaeological sites. Always confirm what's covered - refreshments and meal quality vary between operators.

The old town is walkable, and most boat tours include port pickup. For day trips to Asinara Island or inland spots, minivan tours with a driver are common and take the hassle out of navigation. Renting a car makes sense only if you're exploring beyond Alghero for several days.

Sailing trips, catamaran runs, and island tours generally welcome families, though sea conditions can get choppy - ask about child policies and seasickness before booking. Pasta-making classes and photo shoots work well for older kids and teenagers.

Summer brings calm, sunny days - perfect for swimming off the boat. Spring and autumn can be windier and cooler, which experienced sailors enjoy but may catch beginners off guard. Check the forecast and your operator's weather policy before booking, especially outside peak season.