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 snowfall in September
- Average snowfall 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
Weather in September
Temperature
The commencement of September indicates a shift in the average high-temperature, receding from August's tropical 34.6°C (94.3°F) to a moderately hot 28.5°C (83.3°F). Derrag records a steady low-temperature average of 18.6°C (65.5°F) during September.Heat index
During September, the heat index is calculated to be 29°C (84.2°F). If one remains active during constant exposure, it might cause exhaustion and heat cramps.Understanding the heat index involves considering values for shaded locales with light wind. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important 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.
Humidity
In September, the average relative humidity is 49%.Rainfall
In Derrag, in September, it is raining for 10.1 days, with typically 25mm (0.98") of accumulated precipitation. In Derrag, during the entire year, the rain falls for 111 days and collects up to 265mm (10.43") of precipitation.Snowfall
In Derrag, snow does not fall in April through November.Daylight
In Derrag, Algeria, the average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 06:22 and sunset at 19:17. On the last day of September, sunrise is at 06:45 and sunset at 18:35 CET.
Sunshine
The average sunshine in September is 9.5h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high UV index of 6 in September translates into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Frequently asked questions
How hot is September in Derrag?
What is the average humidity in September in Derrag?
How much does it rain in Derrag in September?
When it does not snow in Derrag?
What is the average length of the day in September in Derrag?
What time are sunrise and sunset in September in Derrag?
How many hours of sunshine does Derrag have in September?
What is the UV index reading in September in Derrag?
Average temperature in September
Derrag, Algeria
- Average high temperature in September: 28.5°C
The warmest month (with the highest average high temperature) is July (35.7°C).
The month with the lowest average high temperature is January (11.6°C).
- Average low temperature in September: 18.6°C
The month with the highest average low temperature is August (22.9°C).
The coldest month (with the lowest average low temperature) is February (3.3°C).
Average pressure in September
Derrag, Algeria
- Average pressure in September: 1016.6mbar
The month with the highest atmospheric pressure is December (1022.7mbar).
The month with the lowest atmospheric pressure is April (1014.7mbar).
Average wind speed in September
Derrag, Algeria
- Average wind speed in September: 8.5km/h
The windiest month (with the highest average wind speed) is March (11.3km/h).
The calmest month (with the lowest average wind speed) is October (8.4km/h).
Average humidity in September
Derrag, Algeria
- Average humidity in September: 49%
The month with the highest relative humidity is January (72%).
The month with the lowest relative humidity is July (34%).
Average rainfall in September
Derrag, Algeria
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is April (43mm).
The driest months (with the least rainfall) are July and August (6mm).
Average rainfall days in September
Derrag, Algeria
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is March (14.5 days).
The month with the least rainy days is July (4.5 days).
Average snowfall in September
Derrag, Algeria
- Average snowfall in September: 0mm
The month with the highest snowfall is February (16mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Derrag, Algeria
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Derrag, Algeria
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in September
Derrag, Algeria
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is July (23.9 days).
The months with the least sunshine days are March and April (14.2 days).
Average UV index in September
Derrag, Algeria
- Average UV index in September: 6
The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Derrag, Algeria
- Average cloud cover in September: 18
The month with the most cloud cover is January (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in September
Derrag, Algeria
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, November and December (9km).
Derrag, Algeria
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