Much of Spain is indeed getting very unpleasant in the summer with climate change, but in the north there are still regions that are quite fine at the moment. Where I am, we recently beat the all time temperature record with 35 degrees, but that was a single day. Most days these weeks it isn't going over 25, and I don't think we hit 30 in June except for that single day and maybe one other day.

The problem is that the right is poised to win the next election and will probably undo all the policies you like. They're pretty much against everything that has been done in the last 7 years. I still have some hopes that Sanchez might clinch another term because he's a political survivor, but prospects are not great.

Canary Islands are part of Spain and probably unaffected from climate change - we have 19-22°C all year round. If it raises to 25° still pretty livable.

    and probably unaffected from climate change

The current government has little chance to get re-elected, and the next one will revert most of these decisions.