September weather forecastChoum, Mauritania
September
Weather in September
September serves as a turning point in the weather of Choum, Mauritania with perceivable changes in a number of climatic aspects. The increased rainfall presents noticeable relief from previous scorching months. The city also witnesses a decrease in daylight and sunshine hours, indicating the arrival of shorter days. September marks the highest reading for average rainfall both in terms of amount and number of days (6.2). This shift in weather dynamics brings about slightly cooler days and an obvious transition from summer to autumn.Temperature
Choum records an average high-temperature of a sweltering 39.2°C (102.6°F) as September arrives, nearly mirroring the previous month's climate. In Choum, an average temperature of 29.5°C (85.1°F) is noted during September nights.Humidity
In September, the average relative humidity is 25%.Rainfall
September is the month with the most rainfall. Rain falls for 6.2 days and accumulates 11mm (0.43") of precipitation.Daylight
In Choum, the average length of the day in September is 12h and 16min.On the first day of September, sunrise is at 06:35 and sunset at 19:08. On the last day of the month, sunrise is at 06:43 and sunset at 18:40 GMT.
Sunshine
The average sunshine in September in Choum is 9.8h.UV index
The average daily maximum UV index in September is 8. A UV Index value of 8 to 10 symbolizes a very high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 8 transforms into these recommendations:
Swift harm can befall unprotected skin and eyes. Prioritize safety. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. 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
Average temperature in September
Choum, Mauritania
- Average high temperature in September: 39.2°C
The warmest month (with the highest average high temperature) is July (41.5°C).
The month with the lowest average high temperature is January (26.2°C).
- Average low temperature in September: 29.5°C
The month with the highest average low temperature is August (29.7°C).
The coldest month (with the lowest average low temperature) is January (14.3°C).
Average pressure in September
Choum, Mauritania
- Average pressure in September: 1010.9mbar
The month with the highest atmospheric pressure is January (1017.5mbar).
The month with the lowest atmospheric pressure is August (1009.2mbar).
Average wind speed in September
Choum, Mauritania
- Average wind speed in September: 15.2km/h
The windiest month (with the highest average wind speed) is December (18.2km/h).
The calmest month (with the lowest average wind speed) is November (14.3km/h).
Average humidity in September
Choum, Mauritania
- Average humidity in September: 25%
The month with the highest relative humidity is August (27%).
The month with the lowest relative humidity is May (17%).
Average rainfall in September
Choum, Mauritania
- Average rainfall in September: 11mm
The wettest month (with the highest rainfall) is September (11mm).
The driest months (with the least rainfall) are January, February, March and April (0mm).
Average rainfall days in September
Choum, Mauritania
- Average rainfall days in September: 6.2 days
The month with the highest number of rainy days is September (6.2 days).
The month with the least rainy days is December (0.1 days).
Average daylight in September /
Average sunshine in September
Choum, Mauritania
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in September: 9h and 48min
The months with the most sunshine are May, July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 9h and 24min).
Average sunshine days in September
Choum, Mauritania
- Average sunshine days in September: 22.5 days
The month with the most sunshine days is December (30.9 days).
The month with the least sunshine days is September (22.5 days).
Average UV index in September
Choum, Mauritania
- Average UV index in September: 8
The month with the highest UV index is June (UV index 9).
The month with the lowest UV index is December (UV index 5).
Average cloud cover in September
Choum, Mauritania
- Average cloud cover in September: 14
The month with the most cloud cover is September (Cloud cover 14).
The month with the least cloud cover is May (Cloud cover 7).
Average visibility in September
Choum, 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).





