French Guiana, an overseas department of France in northeastern South America, features a hot, humid tropical climate year-round with minimal temperature variation. Classified primarily under the Köppen Af (tropical rainforest) category, it experiences consistently high temperatures averaging 23-30°C, very high rainfall exceeding 2500mm annually, and elevated humidity levels. The region has two rainy seasons—primary from April to August and secondary from December to February—and two drier periods in between. Sunshine averages around 4 hours daily during wetter months, with high UV exposure. This climate suits those tolerant of heat and humidity but challenges with heavy rains and potential flooding, ideal for nature enthusiasts but demanding air conditioning and mosquito protection for residents.