French Guiana enjoys a tropical climate and experiences two distinct seasons. The weather is consistent with very little change throughout the year. Average temperatures are a pleasant 73°F. The wet season typically starts in December and lasts until July. The month of May receives the most precipitation. Throughout the year, the daytime is mostly hot and humid with nights cooling off.
Best time to Visit French Guiana
Sightseeing and adventure activities are best enjoyed during the dry season, when the region receives less rainfall. The period between August and December in French Guiana offers perfect weather for all kinds of outdoor pursuits. If you want to join in the fun of the Mardi Gras celebrations, visit from January to February to take part in street parades and all-day parties.