Weather in Brasilien in September
Country-wide climate normals across 61 cities in Brasilien.
How Hot Is Brasilien in September?
Hot weather dominates Brasilien: September averages 28°C, with the warmest cities reaching 38°C.
Sunshine in Brasilien in September
Brasilien's September brings mixed skies — Rio de Janeiro averages 4.4h of sun, with similar conditions nationwide. Cloudy periods alternate with sunny stretches, and the sun is up between 5:50 am and 5:45 pm. Plan for variability rather than guaranteed sunshine.
Does It Rain In Brasilien In September?
Typical September rainfall covers Brasilien: 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 Brasilien Humid In September?
Brasilien'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 Brasilien In September
Light breezes are typical across Brasilien 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 Brasilien In September
Brasilien sees mostly cloudy weather through September: Rio de Janeiro averages 54% cloud cover, and the pattern repeats across the country. Bright sun is uncommon; expect a grey, soft-lit feel to most days.