Why do we see fog even in the lowlands in the early mornings of December?

Fog forms in lowlands during early December mornings primarily due to temperature inversions and high humidity. As the ground cools overnight, it chills the air close to the surface, causing moisture to condense into tiny water droplets. This is especially common in December when longer nights and lower temperatures create ideal conditions for fog formation. Additionally, the presence of moist air can exacerbate this effect, leading to more frequent fog in lowland areas.