The main thing to remember is to bring a light pack.
As the weather in Jeri is warm and dry, people here are used to wear light clothes, as pair of shorts and (sometimes) a T-shirt.
To Bring: the usual beach wear along with something for dining and dancing in the evenings.
The most important items to bring: SPF 30+, sun hat, sun glasses and insect repellent.
There are a number of small supermarkets in town which sells all the basics. However, these items can have a higher cost and a lower quality, so it's better to bring them with you.
Suggested list of things to bring:
Flip flops or sandals
Long lightweight pants
Long-sleeve lightweight shirt
Any personal prescriptions or medicine