Bunbury enjoys Mediterranean weather, with mild, wet winters and hot summers.Spring is the best time to visit the region.

• Spring (September - November): Days are warm and sunny, especially from October and November with daily temperatures of around 20 - 25°Celcius. There is little rainfall.
• Summer (December to February): The weather is warm to hot. The hottest months are January and February. Rain at this time of year is unusual. Summer temperatures range from 27°Celcius -30°Celcius during the day to 15°Celcius minimum at night.
• Autumn (March - May): Like an extension of summer, with warm sunny days and cooler nights. Although the weather is still mostly fine, there may be an occasional shower or humidity.
• Winter (June - August): This is the rainy season, with cool sunny days. There are occasional storms. Daily temperatures in winter range from 18-21°Celcius to a minimum of 12°Celcius at night.