Porto on a rainy day - help!

How disappointing. What's a tourist trap? Maybe there are redeeming qualities around whatever other people say? Cooking class? Port winery tours? Something inside but in Porto? Googled 'what to do in Porto in the rain?' Check Viator for tours or AirBnB for 'experiences' by locals. Surely you haven't seen all Porto has to offer? Worst comes to worst, stay in and do or do something domestic, like laundry, catch up on home news, read, go to a movie. Spend quality time 😉

mhoffman - Don't panic my friend! I have listed some options you might want to try. The weather may be bad in Porto, but there are so many places around the corner where the weather can be totally different. You can easily rent a car to get to these places or just book a day tour. Notable places to visit are:

Costa Nova and Aveiro
Braga and Guimaraes
Vila Real
Geres National Park
Fatima and Coimbra

If you care to stay in Porto, some of the things to do around town in rainy weather can be visiting these places:

Sao Bento Railway Station
Casa da Música
Livraria Lello
Sé do Porto / Porto Cathedral
Palacio da Bolsa
Casa de Serralves
Soares dos Reis National Museum

Last but not least, You can do wine tasting by visiting one of the numerous wine cellars of Porto or join a wine tour.

https://www.europeanbestdestinations.com/travel-guide/porto/the-region/

I spent 2 nights (1 day) in Aveiro. I found it pleasant but not exciting, but I did not see or hear of anything there that would be called a tourist trap. There are some nice examples of art nouveau facades, a couple small museums, some good fish /sea food restaurants. Costa Nova is a beach so rain might not be much fun. I did a Duoro Valley day trip on a rainy day and that was no problem, but it was light rain and not all day.

From the list that was suggested, I did the tour of the Palacio da Bolsa. You can only visit . with a tour and you have to wait for an English one if that is your language. It was interesting for the history as well as the decor. The church next to it is supposed to be worth visiting. Galleries on Miguel Bombardo might be another idea.

I had a rainy few days in Porto, too. I had already been to Coimbra by the time I got to Porto, but that would be an easy day trip by train.

I agree Obidos is not worth it, but I spent a night/day in Aveiro and was glad I did. I liked the architecture, found the "gondola" tour interesting and enjoyable, and the tourist stores had good quality and good prices. () I bought several things that I hadn't been tempted by in my first two weeks in the country. Coimbra is a good day trip too. To save time, take Uber/taxi to Porto-Campanha and taxi from Coimbra-B. Waiting for the local train connections will waste time. I took the RS walking tour. Do go to the recommended fado performance as well. There's a nice place to eat just a few meters up the hill from there.

Disagree about Obidos. You only need to spend a couple of hours there, but it has the ancient Roman walls and cobblestone streets.