We're probably related then...
I expect the general climate here is no different to Scotland. I have plenty of Scottish friends who have moved to the Island and never complained about the weather!
The difficulty we have is unpredictability. We had nearly 3 weeks of sun and barely a rain shower in May, but we can just as easily have a week of rain in July or August. We also seem to have a microclimate where the weather can differ significantly in different parts of the Island or during a single day. You can go out for a drive or bike ride and encounter sun, rain, hail, mist, strong winds and sun again in the space of an hour. Anybody competing in motorsport here has to be a meteorologist in order to choose the correct tyres and set up.
You've got a chance of great weather in July, but even mixed weather shouldn't spoil your fun in an Evora (particularly the lighter 2+0 NA model... )