Includes monthly temperatures, rainfall, hours of sunshine and relative humidity 15 ° 9 ° 5. 17 ° 8 ° 4. Up to 90 days of daily highs, lows, and precipitation chances. Know what's coming with AccuWeather's extended daily forecasts for Sydney, New South Wales, Australia. Use this monthly calendar to view weather averages, such as average temperature 14 days ahead of today, as well as the historical weather patterns over the past year. 22 ° 11 ° 2. 31.

21 ° 12 ° 1. 18 ° 7 ° 7. Weather.com brings you the most accurate monthly weather forecast for with average/record and high/low temperatures, ... Sydney, New South Wales, Australia Monthly Weather. Sydney, New South Wales Monthly Weather. 18 ° 7 ° 6. 17:37 AEST sun Mon Tue Wed thu Fri Sat. Get the monthly weather forecast for Sydney, New South Wales, Australia, including daily high/low, historical averages, to help you plan ahead. 15 ° 8 ° 3. Average monthly temperatures and weather for Sydney , australia.