There is heavy traffic on the Polegate Bypass approaching the Cop Hall Roundabout.
Slow moving traffic was also seen on Eastbourne Road heading north towards Polegate.
Ongoing roadworks are expected to create delays along the A27 in both directions by Drusillas Park near Alfriston.
Slow moving traffic has been seen on all roads approaching Southerham Roundabout.
There is heavy traffic on the A280 heading south from Findon.
Delays are expected on the A27 eastbound approaching Arundel.
There is traffic on the Chichester Bypass westbound between Stockbridge Roundabout and Fishbourne Roundabout.
Slow moving traffic was also seen in both directions between Whyke Roundabout and Bognor Road Roundabout.