1. Travel Documents: Ensure your passport is up to date and does not expire within 6 months of traveling. 

2. Currency Exchange: Hungary’s currency is the Hungarian Forint (HUF). Consider exchanging some currency in advance or using local ATMs.

3. Weather: July in Budapest is generally warm. Pack accordingly with light clothing.
4. Electrical Adapters: Hungary uses the European standard Type C and Type F electrical outlets. Bring the appropriate adapters if needed.

5. Language: Hungarian is the official language, but English is widely spoken in tourist areas.

6. Emergency Numbers: Familiarize yourself with emergency numbers like 112 for all emergencies.

7. Local Transportation: Budapest has an efficient public transportation system, including trams, buses, and the metro. Consider purchasing a transport card for convenience.

8. Tipping: Tipping is common in restaurants and for services. A 10-15% tip is generally appreciated.