We are in Porto for two nights in April 2027 and already I have tried to look at hotels and Airbnb that have been recommended and they are not available for our dates. Is this the norm? A year and a half in advance?
It may be that it is too far ahead. Try looking at the same dates in 2026 to see if they are available then for info.
It did allow me to book that far on Expedia but not Booking.com and on Expedia it said it was not available.
More than 11-12 months ahead is often not possible. Besides, getting a good room is not that competitive, having a look next spring already gives you plenty of time!
We stay at hotels and book them shortly after booking flights. We try to book everything about six months in advance.