Weather in Brazil in September
Country-wide climate normals across 61 cities in Brazil.
How Hot Is Brazil in September?
Brazil runs hot in September: typical highs of 28°C across most cities, with Rio de Janeiro representative. Regional variation: 19°C to 38°C.
Sunshine in Brazil in September
Variable weather dominates Brazil in September: 4.4h of direct sun on a typical day in Rio de Janeiro, with daylight from 5:50 am to 5:45 pm. Expect both bright and cloudy days across the month, and slight regional differences between coastal and inland zones.
Does It Rain In Brazil In September?
Typical September rainfall covers Brazil: about 69mm in Rio de Janeiro across 9 days, with wetter conditions in coastal regions and drier conditions inland. Expect showers about half the days, but extended dry stretches between them. The pattern is variable but predictable.
Is Brazil Humid In September?
Brazil's September is humid — 66% on average in Rio de Janeiro, 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 Brazil In September
Light breezes are typical across Brazil in September: 17 kph in Rio de Janeiro, 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 Brazil In September
Cloudy skies dominate Brazil in September — 54% cover in Rio de Janeiro, with similar overcast conditions in most regions. Direct sun is patchy and broken; expect grey stretches between brief bright moments. Coastal areas may be heavier than inland.