September weather forecastDogondoutchi, Niger
September
Weather in September
September manifests a respite from the rainy season, with a sharp decrease in Dogondoutchi's rainfall. The end of the rainy season sees a dramatic fall in the levels of relative humidity, from 56% to 47%. This indicated shift slowly nudges the landscape back towards the arid and dry baseline climate. Long bouts of sunshine dominate the September climate, marking the advent of a hotter and dryer spell. With a lower cloud cover and reducing rainfall, September effectively balances the transition between the intense wet season and the impending dry spell.Temperature
The average high-temperature during September is a very hot 36.5°C (97.7°F), almost matching the conditions of the preceding month. Dogondoutchi experiences an average low-temperature reading of 26.8°C (80.2°F) throughout September.Heat index
September's average heat index is calculated to be a blistering 43°C (109.4°F). Guard: Heat exhaustion and heat cramps are foreseeable. Prolonged effort may bring about heatstroke.One should consider that heat index numbers are for shaded settings and light wind. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
In Dogondoutchi, the average relative humidity in September is 47%.Rainfall
In Dogondoutchi, Niger, during September, the rain falls for 6.4 days and regularly aggregates up to 17mm (0.67") of precipitation. Throughout the year, there are 47 rainfall days, and 186mm (7.32") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 12min.On the first day of September, sunrise is at 06:32 and sunset at 18:55. On the last day of the month, sunrise is at 06:33 and sunset at 18:34 WAT.
Sunshine
In September, the average sunshine is 9.8h.UV index
The average daily maximum UV index in September is 8. A UV Index reading of 8 to 10 represents a very high health hazard from exposure to the Sun's UV rays for the average person.Note: An average maximum UV index of 8 in September leads to these recommendations:
Ensure you're protected; unprotected eyes and skin can get hurt in moments. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dogondoutchi, Niger
- Average high temperature in September: 36.5°C
The warmest month (with the highest average high temperature) is April (41.8°C).
The month with the lowest average high temperature is December (32.4°C).
- Average low temperature in September: 26.8°C
The month with the highest average low temperature is June (29.9°C).
The coldest month (with the lowest average low temperature) is January (16.3°C).
Average pressure in September
Dogondoutchi, Niger
- Average pressure in September: 1010.4mbar
The month with the highest atmospheric pressure is January (1013.2mbar).
The month with the lowest atmospheric pressure is April (1007.2mbar).
Average wind speed in September
Dogondoutchi, Niger
- Average wind speed in September: 10.9km/h
The windiest month (with the highest average wind speed) is December (16.9km/h).
The calmest month (with the lowest average wind speed) is October (10.3km/h).
Average humidity in September
Dogondoutchi, Niger
- Average humidity in September: 47%
The month with the highest relative humidity is August (56%).
The month with the lowest relative humidity is March (12%).
Average rainfall in September
Dogondoutchi, Niger
- Average rainfall in September: 17mm
The wettest month (with the highest rainfall) is August (81mm).
The driest months (with the least rainfall) are January, February, March, November and December (0mm).
Average rainfall days in September
Dogondoutchi, Niger
- Average rainfall days in September: 6.4 days
The month with the highest number of rainy days is August (13.8 days).
The months with the least rainy days are January and November (0 days).
Average daylight in September /
Average sunshine in September
Dogondoutchi, Niger
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in September: 9h and 48min
The month with the most sunshine is December (Average sunshine: 10h and 0min).
The month with the least sunshine is August (Average sunshine: 8h and 54min).
Average sunshine days in September
Dogondoutchi, Niger
- Average sunshine days in September: 21.8 days
The month with the most sunshine days is January (31 days).
The month with the least sunshine days is August (15.3 days).
Average UV index in September
Dogondoutchi, Niger
- Average UV index in September: 8
The month with the highest UV index is May (UV index 9).
The month with the lowest UV index is December (UV index 6).
Average cloud cover in September
Dogondoutchi, Niger
- Average cloud cover in September: 17
The month with the most cloud cover is August (Cloud cover 30).
The months with the least cloud cover are November and December (Cloud cover 3).
Average visibility in September
Dogondoutchi, Niger
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).








