15-Day Weather Forecast - Sydney
15-day weather forecast for Sydney: temperatures from 9°C (48°F) to 27°C (81°F). Average daily high 21°C (70°F) over the next 15 days.
Hourly Forecast by Day
15-Day Temperature Trend
15-Day Weather Forecast
Updated just nowWeather Insight
Sydney's 15-day outlook ranges from a low of 9°C to a high of 27°C, with an average daytime high near 21°C. That's 2° above the long-term average high of 19°C for this time of year. It continues a recent pattern — 15 of the last 20 days with published data have run warmer than normal. Air quality is currently Moderate (AQI 60), driven mainly by PM2.5 at 15 μg/m³.
Today vs Normal
The long-term average high for today is 19°C.
15 of the last 20 days with published data ran above normal.
That's a break from the pattern - today's forecast runs below normal even though the recent stretch mostly ran above.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.
Extended Outlook for Sydney
Over the next 15 days, Sydney is forecast to see temperatures ranging from 8°C to 27°C, averaging a daily high of 21°C. The extended outlook indicates predominantly dry and clear conditions throughout the period. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.