Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The start of September is characterized by a subtle increase in the average high-temperature, transitioning from a tropical 33.2°C (91.8°F) in August to a fiery hot 36.2°C (97.2°F). The average low-temperature during September nights is a moderately hot 26.5°C (79.7°F).Heat index
The heat index in September is computed to be a scorching 42°C (107.6°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.The heat index's values are generally associated with conditions in shade and light breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.
Humidity
In September, the average relative humidity is 46%.Rainfall
In Doundou, in September, it is raining for 5.9 days, with typically 24mm (0.94") of accumulated precipitation. In Doundou, Niger, during the entire year, the rain falls for 47.7 days and collects up to 190mm (7.48") of precipitation.Daylight
The average length of the day in September is 12h and 12min.On the first day of September, sunrise is at 06:14 and sunset at 18:37. On the last day of the month, sunrise is at 06:15 and sunset at 18:16 WAT.
Sunshine
In September, the average sunshine is 9.7h.UV index
The months with the highest UV index in Doundou are March through July, September and October, with an average maximum UV index of 8. A UV Index of 8 to 10 symbolizes a very high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index, 8 in September, converts into the following recommendations:
Act with urgency in protecting yourself. Without it, skin and eyes can be harmed in no time. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How many days does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Doundou have in September?
What is the month with the highest UV index?
What is the UV index reading in September?
Average temperature in September
Doundou, Niger
- Average high temperature in September: 36.2°C
The warmest month (with the highest average high temperature) is April (41.3°C).
The month with the lowest average high temperature is December (31.5°C).
- Average low temperature in September: 26.5°C
The month with the highest average low temperature is June (29.4°C).
The coldest month (with the lowest average low temperature) is January (14.6°C).
Average pressure in September
Doundou, Niger
- Average pressure in September: 1010.5mbar
The month with the highest atmospheric pressure is January (1013.9mbar).
The month with the lowest atmospheric pressure is April (1007.5mbar).
Average wind speed in September
Doundou, Niger
- Average wind speed in September: 10.2km/h
The windiest month (with the highest average wind speed) is December (15km/h).
The calmest month (with the lowest average wind speed) is September (10.2km/h).
Average humidity in September
Doundou, Niger
- Average humidity in September: 46%
The month with the highest relative humidity is August (57%).
The months with the lowest relative humidity are February and March (13%).
Average rainfall in September
Doundou, Niger
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is August (83mm).
The driest months (with the least rainfall) are January, February, November and December (0mm).
Average rainfall days in September
Doundou, Niger
- Average rainfall days in September: 5.9 days
The month with the highest number of rainy days is August (15.3 days).
The months with the least rainy days are January, November and December (0 days).
Average daylight in September /
Average sunshine in September
Doundou, Niger
- Average daylight in September: 12h and 1min
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 24min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 24min).
The month with the least sunshine is November (Average sunshine: 7h and 42min).
Average sunshine days in September
Doundou, Niger
- Average sunshine days in September: 22.5 days
The months with the most sunshine days are January and December (31 days).
The month with the least sunshine days is August (14.3 days).
Average UV index in September
Doundou, Niger
- Average UV index in September: 8
The months with the highest UV index are March, April, May, June, July, September and October (UV index 8).
The months with the lowest UV index are January and December (UV index 6).
Average cloud cover in September
Doundou, Niger
- Average cloud cover in September: 18
The month with the most cloud cover is August (Cloud cover 33).
The months with the least cloud cover are January, February, November and December (Cloud cover 3).
Average visibility in September
Doundou, 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).
