harmattan

thumb|right|300px|Harmattan haze surrounding Abuja National Mosque in [[Abuja]]

The Harmattan is a season in West Africa that occurs between the end of November and the middle of March. It is characterized by a dry and dusty northeasterly trade wind, of the same name, which blows from the Sahara over West Africa into the Gulf of Guinea. The name is related to the word in the Twi language. The temperature is cold usually at night but can be very hot in certain places during the day. Generally, temperature differences can depend on local circumstances.