Visas are not required of citizens of the US, Canada or the European Union. Citizens of most other foreign countries, including Australia, need a valid passport and visa for France.
All visitors officially require a return or onward ticket.
February to April are the driest months, with rain falling an average of seven days a month and the humidity keeping in the realm of the tolerable. This is the best time to go, and as such it's also the peak tourist season. The wettest months are July to November, which is also hurricane season, so keep an eye on the weather reports. Most cultural events take place in the spring and summer. Women in Creole dress, carrying baskets of traditional foods, parade through the streets to the cathedral where they are blessed by the bishop.