September weather forecast
Niger

September in Niger marks the tail end of the rainy season, with a gradual decrease in rainfall and a slight increase in temperatures. Average temperatures during this month range from 20°C (68°F) to 35°C (95°F). Daytime temperatures often reach the upper limit, especially in the southern regions, while at night, they can drop to 20°C (68°F). In the northern desert areas, such as Agadez, night-time temperatures can fall to about 15°C (59°F).

Compared to August, September experiences a modest increase in temperatures, indicating a transition away from the rainy season and toward the dry season. However, the weather during this month is significantly cooler than during the hot dry season experienced earlier in the year.

Rainfall levels start to decrease noticeably in September, particularly in the southern regions, signalling the end of the rainy season. However, this precipitation still contributes to reducing the country's overall water deficit, even though the northern desert areas remain predominantly dry.

Niamey, the capital city, sees a decrease in rainfall and a slight increase in temperatures in September, with averages ranging from 20°C (68°F) to 36°C (96.8°F). Despite the decrease in rainfall, the city retains its verdant environment, offering a pleasing contrast to the arid conditions that dominate much of the year.

Daylight hours in September remain fairly constant, with an average of 11 to 12 hours of daylight per day. The month is characterized by decreasing cloud cover and humidity levels, reflecting Niger's transition away from the rainy season. Consequently, the dusty and hazy conditions associated with Harmattan winds start to make a gradual return. The decreasing rainfall and increasing temperatures in September prepare the country for the onset of the hot dry season in the following months.

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• Niamey - September »
  In Niamey, Niger, in September, it is raining for 4.2 days, with typically 9mm (0.35") of accumulated precipitation. In Niamey, in September, during 4.2 rainfall days, 9mm (0.35") of precipitation is typically accumulated.
• Zinder - September »
  January, March, April, July through September and December, with an average of 8h of sunshine, are months with the least sunshine in Zinder, Niger. In Zinder during September, the rain falls for 7 days and regularly aggregates up to 61mm (2.4") of precipitation.
• Maradi - September »
  The month with the most snowfall days in Maradi is September, when snow falls for 0.1 days. In Maradi in September, during 6.9 rainfall days, 18mm (0.71") of precipitation is typically accumulated.
• Agadez - September »
  In Agadez, during September, the rain falls for 3 days and regularly aggregates up to 8mm (0.31") of precipitation. On the last day of September, in Agadez, sunrise is at 06:18 and sunset at 18:17 WAT.
• Tahoua - September »
  In Tahoua, Niger, in September, it is raining for 7.8 days, with typically 29mm (1.14") of accumulated precipitation. On the first day of September in Tahoua sunrise is at 06:26 and sunset at 18:50.
• Tillabéri - September »
  In Tillabéri in September, it is raining for 5.1 days, with typically 6mm (0.24") of accumulated precipitation. On the first day of September in Tillabéri, sunrise is at 06:42 and sunset at 19:05.
• Diffa - September »
  In Diffa during September, the rain falls for 6.2 days and regularly aggregates up to 17mm (0.67") of precipitation. On the first day of September in Diffa, Niger, sunrise is at 05:58 and sunset at 18:20.
• Gaya - September »
  On the first day of September in Gaya, Niger, sunrise is at 06:35 and sunset at 18:56. In Gaya in September, it is raining for 12.4 days, with typically 37mm (1.46") of accumulated precipitation.
• Magaria - September »
  On the last day of September, in Magaria, sunrise is at 06:13 and sunset at 18:14 WAT. In Magaria, during September, the rain falls for 5.9 days and regularly aggregates up to 24mm (0.94") of precipitation.
• Madaoua - September »
  In Madaoua, in September, during 6.4 rainfall days, 17mm (0.67") of precipitation is typically accumulated. In Madaoua, in September, during 6.4 rainfall days, 17mm (0.67") of precipitation is typically accumulated.
• Tânout - September »
  In Tânout during September, the rain falls for 6.2 days and regularly aggregates up to 20mm (0.79") of precipitation. March through July, September and October, with an average maximum UV index of 8, are months with the highest UV index in Tânout, Niger.
• Mayahi - September »
  In Mayahi in September, it is raining for 6.9 days, with typically 18mm (0.71") of accumulated precipitation. On the first day of September in Mayahi, Niger, sunrise is at 06:17 and sunset at 18:40.