Weather warnings have been put in place across Hampshire, Surrey, West Sussex, East Sussex and Kent this morning.
Dense fog is covering most of the region.
The Sheppey Crossing in Kent is particularly bad, but remains open at the moment.
More top news
Santa is not the only one who has an epic journey to make on Christmas Eve. A Sussex man is to cycle 500 kms to raise money for charity.
James Wright has the forecast for tonight and tomorrow in the west of the region.
James Wright has the forecast for tonight and tomorrow in the east of the region.