How many days to spend in a city
"How many days in Lisbon?" is the most-asked and worst-answered question in trip planning. Every answer is someone else's trip. Here is a way to work out your own.
Count the things you actually want to do
Not the things the city is known for — the things you want. Write them down. Then:
- A major museum is a half day, and two in one day is a mistake.
- A neighbourhood walk is a half day, and the best half day most cities offer.
- A day trip out of the city is a whole day, plus it eats the evening.
- A long lunch is a half day and worth planning as one.
Two half-days is a full day. Most people can do one museum-grade thing and one walking-grade thing per day before the day stops being enjoyable.
Add the overheads
- Arrival day is worth about half a day of activity, less if you flew.
- Departure day is worth roughly nothing if the flight is before midday.
So a "three day" stop with two nights in it gives you about one usable day. This is the single biggest source of over-optimistic itineraries.
The resulting rule
Count your half-days, divide by two, add one for the arrival and departure overhead. That is your nights.
Four half-day things in Lisbon → two days of activity → three nights.
When to add a night anyway
- The city is a base. If you are day-tripping out of it, each trip costs a full day and the city itself still needs its own.
- You arrive late. An evening arrival makes the first night a formality.
- It is the last stop. Ending somewhere relaxed is worth more than seeing one more thing.
- Sundays and Mondays. A remarkable number of European museums close on Mondays. A two-night stop that lands on the wrong day can lose its entire reason for existing.
When to cut one
- You are there for one specific thing.
- It is a transit stop that grew.
- You have already got three nights somewhere similar.
Check the calendar, not just the count
The most common avoidable mistake is not the number of nights — it is which nights. Check what closes on the days you will be there before you fix the dates. Moving a stop by one day is free at the planning stage and impossible once booked.
Doing this in heytripp
Each stop on a heytripp board carries its own nights and its own list of what you plan to do there, so the arithmetic above is visible rather than something you hold in your head. The calendar view lays the trip out by date, which is where "we are in Lisbon on a Monday" becomes obvious.
Ask Tripp how long is worth spending somewhere and it will answer for your trip, against what you already have planned there — and if it needs to check something it does not know, like whether a particular museum closes on Mondays, it looks it up rather than guessing.