There is no major congestion on the main roads in Sussex, according to traffic reports.
Slow traffic is reported on the A29 Stane Street in Billingshurst due to road works.
On the railway network services due to run between Redhill and Gatwick Airport may be cancelled or delayed by up to 15 minutes, Southern Rail said.
Some services due to stop at Earlswood, Salfords and Horley may run non stop and not call at these stations.
This is due to a landslip between Redhill and Gatwick Airport and is also affecting Thameslink services.
Ticket acceptance is in place on the following routes:
Southern service between London and Brighton
Thameslink service between London and Brighton
Metrobus route 100 between Redhill and Three Bridges