I know no one can predict the weather. I also understand it is high 90s Fahrenheit in Lisbon right now. We are thinking of going August 31-September 7. Curious--how hot generally?
Some years back, at that time of year exactly, we were in Barcelona (which was temperate and a port city) so is Lisbon that way climate-wise? On that same trip however we were in Madrid (inland) and it was high 90s hot as blazes so is Lisbon likely to be like that?
( and how crowded with tourists? Sometimes that is when it is less crowded. ) For people like us, who love to walk and explore and eat outdoors, that heat can diminish enjoyment. As I write from NYC it is also 90s.