Weather in Frans-Guyana in september
Country-wide climate normals across 15 cities in Frans-Guyana.
How Hot Is Frans-Guyana in september?
Frans-Guyana sees consistently hot September weather — average highs of 32°C, average lows of 24°C, with minimal regional differences. Whether you're in Cayenne or one of the coastal cities, conditions feel broadly the same: hot, generally clear, with little night-time relief.
Sunshine in Frans-Guyana in september
Persistent cloud and grey skies define Frans-Guyana's September: about 1.1h of sun a day in Cayenne. Daylight is in short supply too, running from 6:20 am to 6:30 pm, and most regions of the country see similar overcast conditions. Bright stretches are uncommon and brief.
Does It Rain In Frans-Guyana In september?
Typical September rainfall covers Frans-Guyana: about 97mm in Cayenne across 14 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 Frans-Guyana Humid In september?
Heavy oppressive humidity covers Frans-Guyana 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 Frans-Guyana In september
Frans-Guyana'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 Frans-Guyana In september
Frans-Guyana'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.