Ruta de la Lana runs from Alicante’s Mediterranean climate into the higher, drier interior before reaching Burgos, producing quick shifts in weather and feel. Many walkers focus on April, May, and September to balance warmth near the coast with cooler days across La Mancha and into Castile and León. Expect milder starts with intermittent rain in the south, cooler mornings and wind on the plateau, and a gradual increase in precipitation and temperature variability as the route heads north and climbs in elevation.