The prevailing wind direction in the Leeward Islands during December is generally from the northeast.

This is due to the trade winds, which blow consistently from the northeast in this region.

However, it's important to note that:

* Wind patterns can vary slightly depending on specific location within the Leeward Islands.

* Local conditions can also influence wind direction (e.g., topography, proximity to water).

For more accurate and detailed wind information, you should consult a reliable weather source like the National Oceanic and Atmospheric Administration (NOAA) or a local meteorological website.