There are three climate zones in Spain although all three are Mediterranean climates. The central plateau has hot, dry summers and cold winters with more rain in the spring and fall. North of the Cantabrian mountains, there is a maritime climate with cooler summers and winters that are fairly mild. It is often cloudy and it rains frequently.
The climate on the Mediterranean coast is moderate while the area around Murcia has a climate that is similar to Africa. In that area, heat haze is common in the summer and there is little rainfall.
On the Atlantic coast, summer is cooler and there is considerable rainfall in the winter. The rainfall diminishes and the heat rises as you move inland. The Balearic Islands have warm dry summers and cool, wet winters.
The best time to visit Spain is in April or May although September and October are also good options. The temperatures are pleasant and there are fewer crowds.
Spain has an excellent transportation network that covers the entire country. Their railroad system does not just include metro but a widespread tram network. Today, the tram network is the most popular way to get around Spain and the government is working on expanding the network. There are also speed rails and metro train options.
Bus transportation is also popular in Spain, and it is another very cost-effective way to get around the country. There is also the option of Flixbus for international travel and buses in Spain offer state-of-the-art options to make the ride more comfortable.
Taxis in Spain are government-owned and are used for short-distance travel in the country. There are also rideshare programs available like Lyft and Uber.