Weather in Franska Guyana in december
Country-wide climate normals across 15 cities in Franska Guyana.
How Hot Is Franska Guyana in december?
Franska Guyana bakes evenly in December — highs around 29°C are typical from Iracoubo all the way to Grand-Santi, with very little regional variation. Lows sit around 23°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 Franska Guyana in december
Dark, overcast days dominate Franska Guyana in December — Cayenne sees just 0.6h 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 Franska Guyana In december?
Heavy seasonal rains saturate Franska Guyana in December — Cayenne averages 366mm of rain across 28 days, with downpours an almost daily feature. The pattern is consistent across most regions, particularly along monsoon-affected coasts. Expect torrential afternoon storms followed by humid heat.
Is Franska Guyana Humid In december?
Heavy oppressive humidity covers Franska Guyana in December: 87% 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 Franska Guyana In december
Franska Guyana's December has gentle wind — Cayenne averages 12 kph, and the country tracks similarly. Outdoor activity is comfortable, and afternoon thermals add a pleasant breeze in inland areas.
Cloud Cover In Franska Guyana In december
Franska Guyana's December is dominated by overcast skies: Cayenne averages 80% cloud cover, with similar grey persistence across the country. Days feel dim and soft-lit, with little break in the cloud deck.