Climate Overview
The climate across Guinea-Bissau shows moderate regional variation. Annual temperatures range from lows of 17°C in the coldest regions to highs of 43°C in the warmest areas. Annual precipitation ranges from 109mm in drier regions to 382mm in wetter parts of the country. Warmer parts of Guinea-Bissau are hot while cooler areas tend to be mild, offering a range of conditions depending on where you go.
Temperature by Region
Temperature patterns across Guinea-Bissau vary by region, with distinct differences between areas. The Northwest is the warmest part of the country, with peak temperatures reaching 43°C and an annual average of 32°C. Cooler conditions are found in the West, where winter lows drop to 17°C and an annual average of 25°C. The 7°C spread in annual averages across regions creates noticeably different conditions in different parts of the country. The biggest regional differences emerge in summer, with up to 12°C variation across the country. For example, Ingoré in the Cacheu Region averages 32°C annually, while Farim in the Oio Region averages 25°C.
Precipitation by Region
Guinea-Bissau sees notable variation in rainfall across its regions, ranging from 109mm to 382mm per year. The Southwest receives the most rainfall, at approximately 382mm annually. The Northwest is the driest, with around 109mm per year. Rainfall is distributed fairly evenly across the seasons, with no strong wet or dry period in most regions. Visitors heading to wetter areas can expect more frequent rain than those staying in drier parts of the country.
