Pack light, casual, comfortable clothes. Shorts, T-shirts, skirts, sundresses and a swimsuit are must-haves. Cotton and linen will keep you cool in the very humid spring and summer months.
Remember the beach necessities: wide-brimmed hat, sunglasses, sunblock and a swimsuit cover-up. The latter is important, as swimsuits are acceptable only at the beach or by the pool.
Bring sandals, flip-flops and a pair of walking shoes for taking in the sites.
Take simple evening attire. Women will impress in a nice cotton dress, while men may opt for long shorts and a button-down short-sleeved shirt.
Pack a few sweaters for layering, especially in the fall and winter. An umbrella is also good in fall and winter, as brief showers are likely.
Bring insect repellent.
Take an electric converter and adapter.