Answer:
There is not necessary _____. The sentence like that is correct!
Para mi viaje a San José, ¿necesito saber antes de irme qué tipo de moneda usan y dónde me voy a quedar?
Explanation:
You are saying that you will travel to San José, and you want to know what type of currency they use and where you will stay.
Then, first is the clarification: Para mi viaje a San José ...
Second, now that you clarified the context of the question, you can ask your question: Para mi viaje a San José, ¿necesito saber antes de irme qué tipo de moneda usan y dónde me voy a quedar?
It should be noted that the phrase: For my trip to San Jose, I need to know before leaving what type of currency they use and where am I going to stay? It is incorrect. Question signs (?) Are used at the beginning and end of each question only. If you want to clarify the context of the reason for your doubt, do it without the question marks.
