Beach bridesmaid dresses!

Do they have to be long? Getting married on the beach might lend itself better to knee length.
But you could also look at maxi dresses instead of traditional bridesmaids dresses. They’re lighter and I know places like lulu’s sell nice looking ones.

Mori Lee has nice chiffon dresses. My MOH will be wearing one with a slit but floor length. Fairly light but still some structure. We are having our wedding in Jamaica so heat is a concern too

I agree with pp that short dresses could work or hi low dress styles

Have you looked at Azazie? Most likely organza or chiffon would be the lightest.

Have you also tried Lulu's? They have a lot of pretty maxi dresses that would be light and beach appropriate. I just always love longer chiffon dresses for beach weddings