Weather in Frans-Guyana in december
Country-wide climate normals across 15 cities in Frans-Guyana.
How Hot Is Frans-Guyana in december?
Frans-Guyana sees consistently hot December weather — average highs of 29°C, average lows of 23°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 december
Dark, overcast days dominate Frans-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 Frans-Guyana In december?
Heavy seasonal rains saturate Frans-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 Frans-Guyana Humid In december?
Saturated air defines Frans-Guyana's December: humidity at 87% in Cayenne, with the country as a whole feeling muggy and oppressive. The air practically drips after rain, and even shaded outdoor areas feel warm and clammy. Plan indoor time during the most humid afternoon hours.
Wind In Frans-Guyana In december
Light breezes are typical across Frans-Guyana in December: 12 kph in Cayenne, with similar gentle wind conditions in most regions. The air moves enough to keep things fresh on warm days but not enough to be disruptive. Coastal cities may see slightly more.
Cloud Cover In Frans-Guyana In december
Frans-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.