Sunday afternoon saw the perfect end to Sydney's wettest week since last November as the sun made a special appearance to the delight of many enjoying the great outdoors. Over the 7-day period to 9am Saturday, Observatory Hill rain gauge managed to register 121mm. A week's accumulation that surpasses the monthly total rainfall for every single month since November. Only a week ago, Sydneysiders were facing one of the driest Augusts on record yet after seven days of nearly incessant rain, Sydney will now end the month as the second wettest August in the past 24 years (wettest since 1998). This comes after a dry July, in which only 16mm fell in the Harbour City, the driest July since 1995. Only eight days ago, Sydney was also enduring its third driest winter of the past century, but the last week falls have now made up for the deficit bringing the total to 250mm. This is 81% of the average winter rain, with more rain likely to follow before winter's end. Over the past 24 hours the sun tease Sydneysiders by making a cameo appearance, but grey skies will return for the remainder of the working week. Thunderstorms will be getting the party started today, mainly in the west before spreading towards the eastern suburbs this evening. Showers are then likely to intensify across the basin later tonight with rain overnight and tomorrow as a low pressure develops and deepens over the Tasman Sea. Rain will then ease to showers on Thursday (and could even clear briefly) bringing some respite, but with more rain on Friday and showers possibly lingering into Saturday and Sunday. This weekend's weather however, remains uncertain as the stakes will depend on the track the east coast low takes and how fast it moves. If it stays close to the shore it could be a drenching end to winter, if it moves east fast enough it will most likely herald an early start to spring.