Northern Spain in October experiences a transitional climate, shifting from the warmth of summer to the cooler temperatures of autumn. Coastal regions tend to remain milder than inland areas, with the Bay of Biscay influencing temperatures and precipitation. Expect a mix of sunny days and overcast periods, with increased chances of rainfall compared to the summer months. Average temperatures typically range from highs in the mid-teens to low twenties Celsius (mid-50s to low 70s Fahrenheit), though variations can occur depending on specific location and altitude.
Understanding the climatic conditions of this period is crucial for travelers planning trips to the region. Packing appropriate clothing for both warm and cool weather, including rain gear, is essential. This time of year offers a unique opportunity to experience the region with fewer crowds than the peak summer season, while still enjoying pleasant temperatures suitable for outdoor activities like hiking and exploring the stunning landscapes. Historically, October marks the transition to the harvest season in many parts of Northern Spain, influencing local festivals and culinary traditions.