Sydneysiders have been treated to a run of unusually warm nights lately, however it's time to crank up the heaters again as typical winter conditions return.
Minimum temperatures have failed to drop below average for the past 11 nights in Sydney due to warm northerly winds, lingering cloud cover and high humidity. This has led to noticeably warm night time temperatures, which have hovered a few degrees above average.
Friday morning was particularly pleasant, only dropping to a minimum of 13 degrees in the city, five above average. Richmond's overnight minimum was five degrees above average, while Penrith's was three degrees above the normal July minimum temperature.
The nights are set to cool down this week, with temperatures likely to fall to or below the July average. A high pressure system will build over the state today, maintaining clear skies, with drier southwesterly winds. This will allow temperatures to drop to around eight degrees in the city and two degrees in the west until at least Wednesday.
© Weatherzone 2012
16:06 EST The weather bureau has implemented a new system of forecasting the seasonal outlook called Predictive Ocean Atmosphere Model for Australia, or POAMA.