Land Breeze, or offshore breeze, is a diurnal wind occurring at night when land cools quicker that the ocean due to difference in their specific heat values, which forces the daytime sea breeze to die off. When the land cools below that of the adjacent see surface temperature, the pressure over the water will be lower than that of the land, setting up a land breeze, winds from the land to the sea.
Source: MetEd. 2011. MetEd Education and Training pages. Accessed on 9 September 2013. Available at https://www.meted.ucar.edu