Galicia is located in the green and lush North West corner of the Iberian Peninsula (Southern Europe) facing the Atlantic Ocean, just atop Portugal. It is an autonomous territory within the Spanish State and is, therefore, part of the European Union.
With a population of some 2.7 million and a surface of approximately 30,000 km2 (11,583 mi2), Galicia is a manageable destination filled with hundreds of historical and sightseeing sites, natural parks, beaches, mountains, modern big cities and traditional villages alike.
When to visit is a very personal decision because each season definitely has its particular charm.
The climate is generally benign, but do note that Galicia is in Atlantic Europe, meaning that rain is no stranger any time of the year, as are cool temperatures and occasional storms in Winter. You can use the Pontevedra climate chart as a reference, where Galicia Unveiled is headquartered. If you are looking for mild conditions and nature sightseeing, Spring and Autumn are probably the best bet.
Then again, Summer concentrates most public holidays, festivities and celebrations, to the point where you’ll be spoilt for choice. Obviously, that also means it’s high season, so there will be more people everywhere and some days can get quite warm.
All in all the question you have to ask yourself is “what am I feeling like doing?” and then decide a time to visit, because whatever it is you are looking for you will be able to find it here.