Weather in St. Lucia in Dezember
Country-wide climate normals across 15 cities in St. Lucia.
How Hot Is St. Lucia in Dezember?
St. Lucia sees consistently hot December weather — average highs of 28°C, average lows of 25°C, with minimal regional differences. Whether you're in Gros Islet or one of the coastal cities, conditions feel broadly the same: hot, generally clear, with little night-time relief.
Sunshine in St. Lucia in Dezember
Dark, overcast days dominate St. Lucia in December — Gros Islet sees just 1.5h 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 St. Lucia In Dezember?
Typical December rainfall covers St. Lucia: about 65mm in Gros Islet across 17 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 St. Lucia Humid In Dezember?
Heavy oppressive humidity covers St. Lucia in December: 76% on average in Gros Islet, 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 St. Lucia In Dezember
St. Lucia sees consistent breezes in December — averaging 28 kph in Gros Islet, with similar windy conditions across most regions. Coastal and exposed inland cities often see considerably more, especially in the afternoons. Wind-sensitive plans should factor this in.
Cloud Cover In St. Lucia In Dezember
St. Lucia sees mostly cloudy weather through December: Gros Islet averages 74% cloud cover, and the pattern repeats across the country. Bright sun is uncommon; expect a grey, soft-lit feel to most days.