Weather in São Bartolomeu in setembro
Country-wide climate normals across 13 cities in São Bartolomeu.
How Hot Is São Bartolomeu in setembro?
São Bartolomeu bakes evenly in September — highs around 29°C are typical from Toiny all the way to Toiny, with very little regional variation. Lows sit around 27°C even overnight, and the country's small geographic footprint means there are no significant climate pockets. Expect uniform heat day and night.
Sunshine in São Bartolomeu in setembro
Persistent cloud and grey skies define São Bartolomeu's September: about 1.8h of sun a day in Gustavia. Daylight is in short supply too, running from 6:00 am to 6:10 pm, and most regions of the country see similar overcast conditions. Bright stretches are uncommon and brief.
Does It Rain In São Bartolomeu In setembro?
São Bartolomeu's September is wet across most regions: 140mm in Gustavia across 17 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 São Bartolomeu Humid In setembro?
Heavy oppressive humidity covers São Bartolomeu in September: 76% on average in Gustavia, and similar saturating conditions exist nationwide. The air feels thick and heavy from sunrise to sundown, with little overnight respite. Coastal and tropical regions feel especially stifling.
Wind In São Bartolomeu In setembro
Persistent breeze shapes São Bartolomeu's September: 27 kph in Gustavia, with consistent wind across the country. The conditions are ideal for sailing and other wind sports, but can be disruptive for fine outdoor work.
Cloud Cover In São Bartolomeu In setembro
Cloudy skies dominate São Bartolomeu in September — 73% cover in Gustavia, 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.