The cost of painting the exterior of a house in NZ can vary depending on several factors, such as the size of the property, the type of materials used, and the complexity of the job. However, it's important to note that the cost may increase if you're considering exterior painting in winter NZ. Winter conditions, such as lower temperatures and higher humidity, can affect the drying time and the quality of the paint job. It’s crucial to consult with professional painters who can handle the challenges of painting in cooler weather and provide you with an accurate estimate for your project.