Weather in Guinea-Bissau in syyskuu
Country-wide climate normals across 15 cities in Guinea-Bissau.
How Hot Is Guinea-Bissau in syyskuu?
Guinea-Bissau sees consistently hot September weather — average highs of 30°C, average lows of 24°C, with minimal regional differences. Whether you're in Bissau or one of the coastal cities, conditions feel broadly the same: hot, generally clear, with little night-time relief.
Sunshine in Guinea-Bissau in syyskuu
Guinea-Bissau sees limited sun in September: just 0.8h a day in Bissau, with heavy cloud cover common across most regions. Daylight runs from 6:50 am to 7:00 pm, but persistent grey skies and overcast stretches mean direct sunlight is genuinely scarce. Many days pass without any prolonged sunny spells.
Does It Rain In Guinea-Bissau In syyskuu?
Guinea-Bissau is in the heart of its rainy season: Bissau measures 416mm of rain across 27 days in September, and the pattern repeats across nearly all regions. Persistent heavy rain, occasional thunderstorms, and saturated air define the entire country's weather.
Is Guinea-Bissau Humid In syyskuu?
Guinea-Bissau is enveloped in tropical-thick humidity through September: Bissau averages 85%, and most of the country tracks similarly. The constant moisture makes warm temperatures feel substantially hotter, and even nights bring limited cooling. Light cotton clothing is essential.
Wind In Guinea-Bissau In syyskuu
Light breezes are typical across Guinea-Bissau in September: 12 kph in Bissau, with similar gentle wind conditions in most regions. The air moves enough to keep things fresh on warm days but not enough to be disruptive. Coastal cities may see slightly more.
Cloud Cover In Guinea-Bissau In syyskuu
Heavy overcast covers Guinea-Bissau in September: 79% cloud cover in Bissau, with similar grey conditions in most regions. Direct sun is rare, and the pattern is persistent across the country. Coastal and northern regions feel especially heavy.