Lisbon edges it in October. Lisbon averages 15–23°C with medium crowds; Porto 12–21°C with moderate crowds.
By Daan · Last reviewed October 2026
Lisbon and Porto
The verdict for October
Warm days, less predictable
+Still capable of delivering warm, pleasant days with fewer people.
–Weather becomes less predictable.
A strong shoulder-season choice if you want more breathing room.
Autumn arrives with more rain
+Milder temperatures and less summer pressure.
–A greater chance of wet days.
October remains mild enough for sightseeing, but rainfall increases considerably compared with summer. It can suit visitors who prefer a less summery city break and are happy to mix outdoor walks with indoor activities.
Scores and crowd levels are my own judgement; temperatures are monthly averages. Higher scores are better: quieter, cheaper and more pleasant.
Another month