The climate in Niger

Climate zone: tropics

It is yearlong warm or hot. The warmest and rainiest part of the country is Diffa. The coldest is Maradi.

Temperature records of the last 85 years

The hottest temperature measured from 1937 to January 2022 was reported by the Tillabery weather station. In June 2019 the record temperature of 49.8 °C was reported here. The hottest summer from July to September, based on all 14 weather stations in Niger below 500 metres altitude, was recorded in 1987 with an average temperature of 30.4 °C. This average temperature will normally be measured every 4 to 6 hours, thus also including the nights. Normally, this value is 28.9 degrees Celsius.

The coldest day in these 85 years was reported by the weather station Dosso. Here the temperature dropped to -5.5 °C in November 2013. Dosso lies at an altitude of 213 meters above sea level. The coldest winter (January to March) was in 2022 with an average temperature of 21.6 °C. In Niger, it is usual to have about 4.2 degrees more at 25.8 °C for this three-month period.

The most precipitation fell in August 1952. With 15.8 mm per day, the Birni N'konni weather station recorded the highest monthly average of the last 85 years. Incidentally, the region with the most rainfall for the whole year is around Gaya. The driest region is near Bilma.

Data basis and methodology

The data of the individual measuring stations are based on the archives of the German Weather Service, individual values averaged and supplemented by own elements. In order to determine a representative national average, average values were first calculated for each part of the country, which were then summarized at the national level. Thus, if a disproportionate number of weather stations are located in a small area, their number does not affect the national average.