Forecasts for towns across the county say the sun will be out all day (Saturday, June 21), with very high UV levels and very high pollen counts.
On Sunday, it will be slightly cooler as temperatures drop to about 24°C.
If you’re planning a family fun day out at the beach, which one should you choose and which one should you avoid? We have picked a few of the best beaches in Sussex in this gallery below.
5. Eastbourne beach
This location has more than three miles of shingle beaches and provides opportunities for rock pooling, as well as a wonderful town for shopping. Photo: Google Street View
6. Bognor Regis beach
Bognor Regis is a traditional seaside resort. The beach has a large, level promenade from Felpham to Aldwick, which offers a gentle walk. Photo: Steve Robards
7. Climping beach
This rural beach is about halfway between Littlehampton and Bognor and is backed by fields and low sand dunes. It was also used in some episodes of Doctor Who in the 1960s and 70s. Photo: Steve Robards
8. Worthing beach
This popular attraction is busy on hot days and there's plenty to do. There are games and slot machines galore on the pier, as well as a swing park for kids and easy access to town centre shopping. Photo: Eddie Mitchell