Weather in Kongo (Republik Kongo) in September
Country-wide climate normals across 15 cities in Kongo (Republik Kongo).
How Hot Is Kongo (Republik Kongo) in September?
Kongo (Republik Kongo) sees consistently hot September weather — average highs of 30°C, average lows of 22°C, with minimal regional differences. Whether you're in Brazzaville or one of the coastal cities, conditions feel broadly the same: hot, generally clear, with little night-time relief.
Sunshine in Kongo (Republik Kongo) in September
Kongo (Republik Kongo) sees limited sun in September: just 1.1h a day in Brazzaville, with heavy cloud cover common across most regions. Daylight runs from 5:50 am to 5:55 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 Kongo (Republik Kongo) In September?
Kongo (Republik Kongo)'s September is wet across most regions: 101mm in Brazzaville across 15 days, with rain falling on most days of the month. Coastal and highland regions can see significantly more, while interior regions may stay slightly drier. Sunny stretches are brief and uncommon.
Is Kongo (Republik Kongo) Humid In September?
Kongo (Republik Kongo)'s September is humid — 72% on average in Brazzaville, with similar muggy conditions in most regions. Afternoons feel sticky, especially after rain, and the moisture amplifies warm-day temperatures noticeably. Coastal cities see the highest readings.
Wind In Kongo (Republik Kongo) In September
Kongo (Republik Kongo)'s September has gentle wind — Brazzaville averages 11 kph, and the country tracks similarly. Outdoor activity is comfortable, and afternoon thermals add a pleasant breeze in inland areas.
Cloud Cover In Kongo (Republik Kongo) In September
Kongo (Republik Kongo)'s September is dominated by overcast skies: Brazzaville averages 79% cloud cover, with similar grey persistence across the country. Days feel dim and soft-lit, with little break in the cloud deck.