September weather forecastBilma, Niger
September
Weather in September
September serves as a transitional period for Bilma, Niger as the searing summer heat starts to recede slightly. This month documents another light rainfall of 3mm (0.12"), providing a slight relief from the persisting aridity. The city basks in approximately 12.2 hours of daylight. Despite the slight drop in temperature, the days remain scorchingly hot, maintaining Bilma’s typical desert characteristics.Temperature
Bilma experiences a minor change to a still blisteringly hot 41.8°C (107.2°F) in average high-temperature during September, closely reflecting August. Bilma encounters a significant temperature differential, with an average low-temperature of 23.6°C (74.5°F) during September nights.Rainfall
September is the last month it rains. Throughout September, Bilma collects 3mm (0.12") of precipitation. Throughout the year, in Bilma, 13mm (0.51") of rain is accumulated.Daylight
The average length of the day in September in Bilma is 12h and 14min.On the first day of the month, sunrise is at 05:53 and sunset at 18:22. On the last day of September, in Bilma, Niger, sunrise is at 05:58 and sunset at 17:57 WAT.
Sunshine
In Bilma, the average sunshine in September is 10h.UV index
The months with the highest UV index in Bilma are March through September, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from exposure to the Sun's UV rays for the average person.Note: An average maximum UV index of 12 in September leads to these recommendations:
Utilize all necessary safety measures, unprotected skin could suffer burns instantly. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. A sunscreen with at least SPF 30 should be used liberally and reapplied frequently on cloudy days, especially after swimming or an outdoor workout.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bilma, Niger
- Average high temperature in September: 41.8°C
The warmest month (with the highest average high temperature) is June (44.1°C).
The month with the lowest average high temperature is January (27.7°C).
- Average low temperature in September: 23.6°C
The month with the highest average low temperature is August (26.6°C).
The coldest month (with the lowest average low temperature) is December (8.3°C).
Average rainfall in September
Bilma, Niger
- Average rainfall in September: 2.5mm
The wettest month (with the highest rainfall) is August (7.6mm).
The driest months (with the least rainfall) are January, February, March, April, May, June, October, November and December (0mm).
Average rainfall days in September
Bilma, Niger
- Average rainfall days in September: 0 days
The month with the highest number of rainy days is July (2 days).
The months with the least rainy days are January, February, March, May, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Bilma, Niger
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in September: 10h
The month with the most sunshine is June (Average sunshine: 11h).
The months with the least sunshine are January and December (Average sunshine: 9h).
Average UV index in September
Bilma, Niger
- Average UV index in September: 12
The months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 7).








