September weather forecastTerjit, Mauritania
September
Weather in September
In September, Terjit sees a significant drop in temperatures signaling the onset of fall. The rainfall level reaches its yearly peak of 11mm (0.43") along with a moderate increase in wind speed. This combination orchestrates the spacious-cool weather which is a relief from the recent summer heatwave. Sunlit days become infrequent and the cloud cover thickens, bringing "grayness" into the lives of Terjit residents. It's a season of change that ticks off the transition from the sweltering summers to cooler days ahead.Temperature
Terjit experiences an average high-temperature of a sweltering 39.2°C (102.6°F) in September, subtly different from August's 40.4°C (104.7°F). Terjit experiences an average low-temperature of 29.5°C (85.1°F) in the month of September.Humidity
In Terjit, the average relative humidity in September is 25%.Rainfall
The month with the most rainfall is September, when the rain falls for 6.2 days and typically aggregates up to 11mm (0.43") of precipitation.Daylight
The average length of the day in September in Terjit, Mauritania, is 12h and 15min.On the first day of the month, sunrise is at 06:36 and sunset at 19:07. On the last day of September, sunrise is at 06:43 and sunset at 18:41 GMT.
Sunshine
In Terjit, the average sunshine in September is 9.8h.UV index
The average daily maximum UV index in September in Terjit is 8. A UV Index of 8 to 10 symbolizes a very high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 8 in September translates into these instructions:
Immediate damage can occur to skin and eyes if left unprotected. Always take necessary precautions. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Terjit, 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
Terjit, 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
Terjit, 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
Terjit, 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
Terjit, 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
Terjit, 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
Terjit, Mauritania
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 18min).
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
Terjit, 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
Terjit, 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
Terjit, 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
Terjit, 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).





