Planning for the weather is an important factor for making your trip to Bronte Park a success, especially when you’re splurging. The hottest months are usually January and February, with an average temperature of 14°C, while the coldest months are August and July, with an average of 8°C. The rainiest months in Bronte Park are August, July, May and September, with each month seeing an average of 264 mm of rainfall.