Many consider Spain paradise due to its pleasant weather and ideal climate conditions.
And yes, it is true that rain is not usual and that the temperature is perfect.
So, in that sense, the tip here is simple: enjoy as much as possible the countries climate, never stay at home, go for a walk under the sun, go jogging, go and read on the beach, etc.
But, as complicated to imagine as it can be, the Spanish weather also has its downsides.
First of all, because in certain regions like Madrid and especially Andalucia (in the south), it can be too hot during summer. To the point in which going for a walk to the street is not a good option until 7 or 8 pm.
On the other side, some regions in the north, like the Basque Country, enjoy colder temperatures and rain is something more common. So if you are considering any of these regions as your new base of operations, bear those facts in mind.
