When to Go
The best months to go to Andalusia are October and November and April and May. It's blisteringly hot in the summer, so, if that's your only chance to come, plan time in the Pedroches of northern Córdoba province, Granada's Sierra Nevada and Alpujarras highlands, or the Sierra de Cazorla in Jaén to beat the heat. Autumn catches the cities going about their business, the temperatures are moderate, and you will rarely see a line form.
December through March tends to be cool, uncrowded, and quiet, but come spring, it's fiesta time, with Seville's Semana Santa (Holy Week, between Palm Sunday and Easter) the most moving and multitudinous. April showcases whitewashed Andalusia at its floral best, every patio and facade covered with flowers from bougainvillea to honeysuckle.