Weather in 仏領ギアナ in 12月
Country-wide climate normals across 15 cities in 仏領ギアナ.
How Hot Is 仏領ギアナ in 12月?
仏領ギアナ bakes evenly in December — highs around 29°C are typical from Sinnamary 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 仏領ギアナ in 12月
仏領ギアナ sees limited sun in December: just 0.6h a day in Cayenne, with heavy cloud cover common across most regions. Daylight runs from 6:30 am to 6:20 pm, but persistent grey skies and overcast stretches mean direct sunlight is genuinely scarce. Many days pass without any prolonged sunny spells.
Does It Rain In 仏領ギアナ In 12月?
Monsoon-like conditions dominate 仏領ギアナ's December: Cayenne sees 366mm of rain across 28 days, similar nationwide. Heavy showers fall almost daily, often in dramatic afternoon downpours. Sunshine is brief between storms, and humidity stays high throughout the month.
Is 仏領ギアナ Humid In 12月?
Heavy oppressive humidity covers 仏領ギアナ 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 仏領ギアナ In 12月
仏領ギアナ'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 仏領ギアナ In 12月
Heavy overcast covers 仏領ギアナ in December: 80% cloud cover in Cayenne, with similar grey conditions in most regions. Direct sun is rare, and the pattern is persistent across the country. Coastal and northern regions feel especially heavy.