The best time to travel to Spain depends on which part of Spain you want to visit. During the summer season in Spain, which lasts from June to August, cities such as Cordoba, Malaga, Costa del Sol and Seville can be very hot. However, it would be the best time to go to Spain to explore places such as Granada and the Sierra Nevada Mountains that are much cooler during these months. Make sure you find out what the weather is likely to be at your destination, before you go. With lush greenery all around, this time can be considered the best time to visit Spain for honeymoon.