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 onset of September comes with a shift in the average high-temperature, falling from an extremely hot 42.8°C (109°F) in August to a fiery hot 37°C (98.6°F). Chegga experiences a mean low-temperature of 26°C (78.8°F) during September.Humidity
The average relative humidity in September is 25%.Rainfall
In September, the rain falls for 4.5 days. Throughout September, 6mm (0.24") of precipitation is accumulated. In Chegga, during the entire year, the rain falls for 21.5 days and collects up to 34mm (1.34") of precipitation.Daylight
In September, the average length of the day is 12h and 18min.On the first day of the month, sunrise is at 06:03 and sunset at 18:42. On the last day of September, sunrise is at 06:15 and sunset at 18:10 GMT.
Sunshine
The average sunshine in September is 9.7h.UV index
The average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: A maximum daily UV index of 7 during September morphs into the following directions:
Deflect overexposure. Sun protection is a necessity. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the 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 long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Chegga, Mauritania
- Average high temperature in September: 37°C
The warmest month (with the highest average high temperature) is July (43.2°C).
The month with the lowest average high temperature is January (20.5°C).
- Average low temperature in September: 26°C
The month with the highest average low temperature is August (30.2°C).
The coldest month (with the lowest average low temperature) is January (10.3°C).
Average pressure in September
Chegga, Mauritania
- Average pressure in September: 1012.3mbar
The month with the highest atmospheric pressure is December (1021.4mbar).
The month with the lowest atmospheric pressure is July (1009.4mbar).
Average wind speed in September
Chegga, Mauritania
- Average wind speed in September: 16.3km/h
The windiest month (with the highest average wind speed) is June (21.4km/h).
The calmest month (with the lowest average wind speed) is October (15km/h).
Average humidity in September
Chegga, Mauritania
- Average humidity in September: 25%
The month with the highest relative humidity is December (37%).
The months with the lowest relative humidity are July and August (16%).
Average rainfall in September
Chegga, Mauritania
- Average rainfall in September: 6mm
The wettest month (with the highest rainfall) is October (9mm).
The driest months (with the least rainfall) are January, February, March, April, June, July and December (1mm).
Average rainfall days in September
Chegga, Mauritania
- Average rainfall days in September: 4.5 days
The month with the highest number of rainy days is September (4.5 days).
The month with the least rainy days is December (0.6 days).
Average daylight in September /
Average sunshine in September
Chegga, Mauritania
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in September: 9h and 4min
The months with the most sunshine are June, July and August (Average sunshine: 9h and 54min).
The months with the least sunshine are October and December (Average sunshine: 9h and 36min).
Average sunshine days in September
Chegga, Mauritania
- Average sunshine days in September: 24.5 days
The month with the most sunshine days is December (30.3 days).
The month with the least sunshine days is September (24.5 days).
Average UV index in September
Chegga, Mauritania
- Average UV index in September: 7
The month with the highest UV index is July (UV index 9).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in September
Chegga, Mauritania
- Average cloud cover in September: 12
The month with the most cloud cover is September (Cloud cover 12).
The month with the least cloud cover is June (Cloud cover 6).
Average visibility in September
Chegga, Mauritania
- 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).
