Portugal

Weather

August is the warmest month in most of southern Europe. The exception is northern Portugal and Atlantic Spain (Galicia, Vascongadas, Asturias, Cantabria) where in August temps fall somewhat and it starts to rain, rain, rain. The rest of Spain will have summer weather well into September.

It will get hot where you are going, and you may be uncomfortable at times, but NOT unlike anything you've experienced in the US. If you are from the US east or south of the Rockies, or from southern Toronto, Spain will not be hotter than anything you've experienced.

I always tell people that in southern Europe, no matter how hot it gets during midday, the heat does not last long. Med climate means dry heat and low humidity in most areas (especially inland areas). Without moisture in the air, the atmosphere is less able to trap heat, and evenings will be pleasantly cool, except inside un-air-conditioned buildings -buildings tend to trap heat. Wear very light clothing during the day and sandals, and don't carry heavy items.

But the heat is not that bad. There are much hotter places on the planet. You may not even feel uncomfortable. For most people, the unbearableness in their head. Wear very light clothing during midday, and you'll be fine.