Weather in St Lucia in december
Country-wide climate normals across 15 cities in St Lucia.
How Hot Is St Lucia in december?
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 december
Persistent cloud and grey skies define St Lucia's December: about 1.5h of sun a day in Gros Islet. Daylight is in short supply too, running from 6:20 am to 5:40 pm, and most regions of the country see similar overcast conditions. Bright stretches are uncommon and brief.
Does It Rain In St Lucia In december?
Moderate rainfall defines St Lucia's December: Gros Islet averages 65mm across 17 days. Some regions see meaningfully wetter weather, especially coastal or mountain-facing areas, while continental interiors tend toward the drier end of the spectrum.
Is St Lucia Humid In december?
St Lucia is enveloped in tropical-thick humidity through December: Gros Islet averages 76%, 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 St Lucia In december
Persistent breeze shapes St Lucia's December: 28 kph in Gros Islet, with consistent wind across the country. The conditions are ideal for sailing and other wind sports, but can be disruptive for fine outdoor work.
Cloud Cover In St Lucia In december
Cloudy skies dominate St Lucia in December — 74% cover in Gros Islet, with similar overcast conditions in most regions. Direct sun is patchy and broken; expect grey stretches between brief bright moments. Coastal areas may be heavier than inland.