Daily rates from Hertz are typically the cheapest, with an average price of $46/day when getting a rental car in Whanganui. The absolute cheapest price found at their 3 locations in Whanganui is $44/day.
If you are renting a vehicle in Whanganui, then be aware that the current speed limit within city or town limits is 35 mph, unless otherwise posted. Suburban speed limits around Whanganui will generally have a speed limit of 65 mph. If you are traveling on a highway in Whanganui, then the speed limit is 70 mph.
The weather in Whanganui during September would likely not impact the type of rental much. momondo users do seem to prefer certain car types when looking for specific vehicles for their Whanganui car rental.
Those looking to rent a car in Whanganui for a road trip to the surrounding areas, please know the weather in Manawatu-Wanganui during the month of September usually is around 51.8 °F with 2.8″ of possible rain.