September weather forecastRebaia, Algeria

September

Weather in September

The first month of the autumn, September, is still a warm month in Rebaia, Algeria, with temperature in the range of an average high of 28.5°C (83.3°F) and an average low of 18.6°C (65.5°F).

Temperature

September's arrival correlates with a reduction in the average high-temperature, down from a tropical 34.6°C (94.3°F) in August to a moderately hot 28.5°C (83.3°F). Rebaia records an average temperature drop to a comfortable 18.6°C (65.5°F) in September.

Heat index

For September, the heat index is calculated to be 29°C (84.2°F). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.
In the scope of the heat index, its values resonate with shade and light wind conditions. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.

Humidity

The average relative humidity in September is 49%.

Rainfall

In Rebaia, in September, it is raining for 10.1 days, with typically 25mm (0.98") of accumulated precipitation. Throughout the year, there are 111 rainfall days, and 265mm (10.43") of precipitation is accumulated.

Snowfall

April through November are months without snowfall.

Daylight

The average length of the day in September is 12h and 24min.
On the first day of September, sunrise is at 06:19 and sunset at 19:15. On the last day of the month, sunrise is at 06:42 and sunset at 18:32 CET.

Sunshine

The average sunshine in September is 9.5h.

UV index

The average daily maximum UV index in September in Rebaia is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. During bright days, sunglasses that offer UVA and UVB defense are recommended.

Frequently asked questions

The high-temperature, in September, in Rebaia, records 28.5°C (83.3°F), while the low-temperature is 18.6°C (65.5°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is calculated to be 29°C (84.2°F).

In September, the average relative humidity is 49%.

In Rebaia, in September, during 10.1 rainfall days, 25mm (0.98") of precipitation is typically accumulated.

In Rebaia, snow does not fall in April through November.

In Rebaia, the average day length in September is 12h and 24min.

On the first day of September, sunrise is at 06:19 and sunset at 19:15. On the last day of the month, sunrise is at 06:42 and sunset at 18:32 CET.

The average sunshine duration in September is 9.5h.

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Rebaia, 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
Rebaia, 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
Rebaia, 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
Rebaia, 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
Rebaia, 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
Rebaia, 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
Rebaia, 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
Rebaia, 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
Rebaia, Algeria

  • Average daylight in September: 12h and 24min

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 30min

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
Rebaia, 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
Rebaia, 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
Rebaia, 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
Rebaia, 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).