🇬🇦Gabon

Gabon spans 2°19′N to 3°57′S across west-central Africa, a small equatorial nation of 267,667 km² with an 885 km Atlantic coastline and dense rainforest blanketing approximately 85% of the territory. Most of the country lies at modest elevations of 50 to 500 m, punctuated by the Crystal Mountains rising to around 1,000 m near the Equatorial Guinea border and the Chaillu massif reaching Mont Iboundji at 1,575 m in the south.

The climate is uniformly equatorial, dominated by tropical rainforest Af across most regions, with a narrow tropical monsoon Am strip along the coast and tropical savanna Aw influence in the southwestern Loango basin, modulated by the cool Benguela current that tempers the southern shoreline.

Libreville, situated on the equator, averages 27°C year-round with 2,840 mm of rainfall distributed across two distinct wet seasons—September through December and March through May—separated by the cool dry saison sèche from June to September when Benguela upwelling intensifies offshore. Port-Gentil on the southern coast receives approximately 2,250 mm annually due to stronger Benguela influence suppressing summer convection.

Franceville and the inland Chaillu massif see 1,800 to 2,000 mm, while the rainforest interior around Lopé National Park records 1,500 to 1,800 mm. Relative humidity remains persistently high at 80 to 90% throughout the year. The Ogooué River system experiences seasonal flooding, oil-bearing coastal fields face mounting storm-surge and erosion stress, and deforestation pressure on the Congo Basin's western fringe continues. Sea-level rise poses a growing threat to Port-Gentil and Libreville's coastal infrastructure. ENSO modulation is modest at this equatorial latitude, though Atlantic sea-surface temperature variability influences dry-season intensity.

Our archive covers 0 Gabonese cities with daily ERA5 reanalysis data going back to 1940.