harmattan

/HH AA0 R M AH0 T AE1 N/
noun
  1. 1

    A dry and dusty wind which blows from the Sahara over the Atlantic coast of West Africa in December, January and February, being a hot wind in some areas and a cold wind in others.

  2. 2

    A season which spans the period in which the harmattan wind blows.

Source: https://en.wiktionary.org/wiki/harmattan