🇨🇮Ivory Coast

Côte d'Ivoire stretches from 4°18′ to 10°44′N along West Africa with a 515 km Atlantic coast, mostly low rolling savanna and forest plain (250–400 m) rising to the Nimba massif on the Liberian–Guinean border (Mt Nimba 1,752 m, the country's highest peak); the climate transitions north–south from tropical monsoon (Am) along the southern coast (Abidjan, San-Pédro), through tropical savanna (Aw) in the central forest–savanna mosaic (Yamoussoukro, Bouaké), to Sudano-Sahelian (BSh) in the far north (Korhogo, Ferkessédougou).

Abidjan averages 27°C year-round with 1,800 mm rain split between a long wet season May–July and a short Oct–Nov peak; the southwestern coast (Tabou) is one of the wettest spots in West Africa with over 2,200 mm; the central forest–savanna transition (Bouaké) sees ~1,150 mm in a single rainy peak Apr–Oct; the dry north receives 1,000 mm with a sharp Nov–Mar dry season dominated by the harmattan dust haze. The West African monsoon and ITCZ migration drive the rainfall regime; coastal erosion is severe along Grand-Bassam–Port-Bouët; ENSO and Atlantic dipole modulate rainfall variability.

Our archive covers 23 Ivorian cities with daily ERA5 reanalysis data going back to 1940. The warmest July averages occur in Korhogo, around 29.1°C, while Korhogo records the coldest January nights near 17.8°C. Comparing the last decade against the 1940–1970 baseline, mean temperatures across these cities have risen by about 1.4°C.