The best time to visit Casco Vello, Galicia, is during the peak season from June to August, when the vibrant streets come alive with tourists eager to soak up the rich culture and stunning coastal scenery. June, in particular, is a wonderful month to experience Casco Vello, as the weather is pleasantly warm, typically ranging from 15 to 25 degrees Celsius, making it ideal for outdoor activities like strolling through the historic old town or enjoying a meal at a local terrace restaurant.During the summer months, you can enjoy the lively option filled with street performers, local festivals, and open-air markets that showcase the best of Galician cuisine and crafts. The picturesque waterfront provides excellent opportunities for sightseeing and relaxing by the sea, ensuring you have plenty of options for both adventure and leisure.For those looking for a more budget-friendly experience, consider visiting in January, when the crowds are thinner and you can explore the charm of Casco Vello at a more relaxed pace. Although the temperatures can be cooler, typically ranging from 5 to 12 degrees Celsius, the quieter streets allow for a more intimate experience of this historic area, often with lower rental prices.