In Eastbourne and Hastings there is a chance of light rain showers this morning and then it should brighten up this afternoon.
Brighton is in for a day of sunny intervals and a moderate breeze.
After a wet start in Horsham the sun will come out this afternoon.
Worthing and Chichester will see a day of sunny intervals and a small breeze.
Temperature highs will be 18 and drop to 14 tonight when there will be rain across the county too.