The source provides an extensive travel calendar for Spain, detailing the advantages and disadvantages of visiting during each month of the year. It immediately identifies May and October as the absolute best months for balancing good weather and low crowds, while suggesting the shoulder seasons of late April to early June and mid-September to late October offer a "sweet spot." The guide breaks down each month by temperature ranges, regional highlights, major cultural festivals (like Carnival or Semana Santa), and price fluctuations, advising travelers to avoid the peak heat and cost extremes of mid-summer and late December. Finally, the episode offers regional cheat sheets and summary recommendations based on specific traveler priorities, such as pure winter sun or food and wine pilgrimages.