Weather in غويانا الفرنسية in سبتمبر
Country-wide climate normals across 15 cities in غويانا الفرنسية.
How Hot Is غويانا الفرنسية in سبتمبر?
Uniform heat across غويانا الفرنسية's September: averages climb to 32°C nationally with overnight lows of 24°C, narrow spread from coast to interior. The hottest cities like Grand-Santi register similar readings to the coolest, so plan for consistently hot weather across the country.
Sunshine in غويانا الفرنسية in سبتمبر
Dark, overcast days dominate غويانا الفرنسية in September — Cayenne sees just 1.1h of sun a day, and the pattern is similar across most regions. Cloud cover is heavy and persistent, with even the brighter regions struggling to escape the gloom for long.
Does It Rain In غويانا الفرنسية In سبتمبر?
Moderate rainfall defines غويانا الفرنسية's September: Cayenne averages 97mm across 14 days. Some regions see meaningfully wetter weather, especially coastal or mountain-facing areas, while continental interiors tend toward the drier end of the spectrum.
Is غويانا الفرنسية Humid In سبتمبر?
Heavy oppressive humidity covers غويانا الفرنسية in September: 77% on average in Cayenne, 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 غويانا الفرنسية In سبتمبر
غويانا الفرنسية's September has gentle wind — Cayenne averages 13 kph, and the country tracks similarly. Outdoor activity is comfortable, and afternoon thermals add a pleasant breeze in inland areas.
Cloud Cover In غويانا الفرنسية In سبتمبر
غويانا الفرنسية's September is dominated by overcast skies: Cayenne averages 79% cloud cover, with similar grey persistence across the country. Days feel dim and soft-lit, with little break in the cloud deck.