Weather in Französisch-Guayana in Dezember
Country-wide climate normals across 15 cities in Französisch-Guayana.
How Hot Is Französisch-Guayana in Dezember?
Französisch-Guayana 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 Französisch-Guayana in Dezember
Persistent cloud and grey skies define Französisch-Guayana's December: about 0.6h of sun a day in Cayenne. Daylight is in short supply too, running from 6:30 am to 6:20 pm, and most regions of the country see similar overcast conditions. Bright stretches are uncommon and brief.
Does It Rain In Französisch-Guayana In Dezember?
Monsoon-like conditions dominate Französisch-Guayana'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 Französisch-Guayana Humid In Dezember?
Französisch-Guayana is enveloped in tropical-thick humidity through December: Cayenne averages 87%, and most of the country tracks similarly. The constant moisture makes warm temperatures feel substantially hotter, and even nights bring limited cooling. Light cotton clothing is essential.
Wind In Französisch-Guayana In Dezember
Französisch-Guayana'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 Französisch-Guayana In Dezember
Französisch-Guayana'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.