Renting a car for a week can be a great option for travel. Avis, the most popular car rental company for this area, offers rental cars for around $458/week on average.
Booking early almost always ensures you have more options of car models to choose from, as well as prices reduced by up to 11% to make it a great deal. Try to book at least 90 days prior to when you need the car rental to close on a rate below the average.
Yes, renting a vehicle in Asia for a month is certainly possible.