Welcome back to the driving seat George, sounds like you had a relaxing time in Portugal. September is a nice time in Portugal and Spain, that is when we tend to holiday there, as you say some nice warm evenings, I can't remember one of those this summer here, this year.
It is amazing how the land gets so dry with the high temperatures experianced in summer, yet recovers during the winter, and spring is so green.
Here are a couple (3)
of pictures taken in September 2005 in the Extremadura area of Spain.
Shows the almost barren landscape at the end of summer, taken from the old town walls of Trujillo. Note the cattle lh side of picture
And inland at a reservoir, the fishing must have been good there as all the fish would be in the water remaining. When full the water extends to almost as far as the eye can see. Note the fishermen and vehicle
But it wasn't so bad on the mountains, where there were still running streams.
Ireland may not be the best place for Mediteranean plants agreed, as you say, too wet. As for cold I will have to look up the minimum for Belfast Airport, I guess it may not be so cold as down here.
We haven't had that much rain here all summer, and are still watering the garden today.
Malcolm