Currently, the cheapest month to rent a car in Ha'il is February. The most expensive time to rent a car is October. The cheapest prices for each month are shown above, but prices will vary based on availability, how far out you book your rental car, and of course, car type.
From Europcar you can rent a car in Ha'il from about C$ 1,170 per week on average.
The length of time you can book a rental for is subject to the inventory of the supplier. When renting a vehicle from Ha'il it should be possible to rent a car for a whole month if needed.