Someone asked me advice for a nine days visit to Lisbon in winter, and I think that it will be useful to post it here.
Despite Lisbon being always a must see, nine days in winter, may be two much (three or four will do – I will not repeat any of the many suggestions in these pages), but you may travel around (a car will be the best way):
The mentioned suggestions are “must see” – they are wonderful all year around, and most of them not too compromised by eventual bad weather.
Thousands of Portuguese head south to Algarve in New year’s eve. If you want action that’s the place, two hours driving from Lisbon.