Yes, it rains quite a bit in the south of Valencia. A microclimate.
Have you thought about the Canary Islands? Considering your temperature range ... Not too hot, not too cold, all year round :)
About wildfires: Comunidad Valenciana is a place with high risk or wildfires. Same as Galicia. Galicia, and portugal have eucalyptus, we have pinus halapensis. 90 percent of tree cover in alicante is pinus halapensis. And it loves fire. We've had wildfires almost all summers, some of then quite near.
https://elpais.com/elpais/2018/08/08/inenglish/1533742741_740491.html
This one was scary. And not too far from alzira.
So if wildfires are a concern ...
High rainfall is ok but a good spring or perforation (well) would add a lot.
Maybe north of spain is a bit rainy. Not too cold though.
We're thinking about a good property in 20, 30 or a life time span. Maybe you like the temperature now in Alicante but every year is the hottest year of history with more and longer heat waves. Maybe sooner than you expect Alicante is as hot as sevilla is now.
The thing is that Portugal has the same climatic range as spain and is a bit cheaper.
Also in these six years we've realised that community is really important. We're going to portugal to see if we can get the feeling that there is place we can fit in.