Deep ruts and potholes abound. Roads flood in torrential rainstorms. There are no traffic lights or stop signs. Traffic congestion in built up areas often causes gridlock. Failure to promptly remove disabled vehicles, corpses and other obstacles from the roadway further contributes to traffic congestion and compounds unsafe driving practices.
Street lighting is insufficient and often out of order, making night driving all the more risky.
Although Nigeria lies within the tropics, its climate varies considerably from north to south. The south is humid throughout the year, while the north is humid from May until October. The dry season in the north is usually dusty from Saharan winds called the Harmattan. Rainfall varies from 150 inches a year on the coast to 25 inches or less in the far northern regions of the country. Untreated water, ice and peeled fruits and raw vegetables should be avoided.