September weather forecast
Guelta Zemmur, Western Sahara

September

Weather in September

September in Guelta Zemmur brings a relief from the extreme heat of the past couple of months. What marks this month is the highest rainfall days, shooting up to 6.8 during the entire period. However, the temperature begins to fall gradually, making the weather more bearable. Additionally, wind speeds decrease, and visibility remains excellent throughout the period. As such, despite sporadic rainfall, the weather remains generally warm and clear.

Temperature

The transition into September indicates a reduction in the average high-temperature, down to a very hot 35.8°C (96.4°F) from August's blistering 40.9°C (105.6°F). Guelta Zemmur records an average nighttime low of 24.2°C (75.6°F) in September.

Humidity

In Guelta Zemmur, the average relative humidity in September is 34%.

Rainfall

In Guelta Zemmur, during September, the rain falls for 6.8 days and regularly aggregates up to 14mm (0.55") of precipitation. In Guelta Zemmur, during the entire year, the rain falls for 25.5 days and collects up to 53mm (2.09") of precipitation.

Daylight

In Guelta Zemmur, the average length of the day in September is 12h and 17min.
On the first day of September in Guelta Zemmur, sunrise is at 07:30 and sunset at 20:08. On the last day of the month, sunrise is at 07:41 and sunset at 19:37 +01.

Sunshine

In September, the average sunshine is 9.6h.

UV index

In Guelta Zemmur, the average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 7 in September translates into this advice:
Prevent overexposure. Protection from the sun's harmful effects is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.

Frequently asked questions

How hot is it in September?
In Guelta Zemmur, in September, the average high-temperature is 35.8°C (96.4°F), and the average low-temperature is 24.2°C (75.6°F).
What is the average humidity in September?
In September, the average relative humidity is 34%.
How much does it rain in September?
In Guelta Zemmur, during September, the rain falls for 6.8 days and regularly aggregates up to 14mm (0.55") of precipitation.
How many hours of daylight does Guelta Zemmur have in September?
The average day length in September is 12h and 17min.
When is the sunrise / sunset in September?
In September, on the first day of the month, sunrise is at 07:30 and sunset at 20:08. On the last day of the month, in Guelta Zemmur, Western Sahara, sunrise is at 07:41 and sunset at 19:37 +01.
How long on average sun shines in September?
In Guelta Zemmur, the average sunshine duration in September is 9.6h.
How high is the UV index in September?
The average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Guelta Zemmur, Western Sahara
  • Average high temperature in September: 35.8°C

The warmest month (with the highest average high temperature) is July (41.2°C).
The month with the lowest average high temperature is January (21.8°C).

  • Average low temperature in September: 24.2°C

The month with the highest average low temperature is August (26.3°C).
The coldest month (with the lowest average low temperature) is January (11.1°C).

Average pressure in September
Guelta Zemmur, Western Sahara
  • Average pressure in September: 1013.5mbar

The month with the highest atmospheric pressure is January (1020.5mbar).
The month with the lowest atmospheric pressure is August (1010.5mbar).

Average wind speed in September
Guelta Zemmur, Western Sahara
  • Average wind speed in September: 19.7km/h

The windiest month (with the highest average wind speed) is July (25.7km/h).
The calmest month (with the lowest average wind speed) is October (15.9km/h).

Average humidity in September
Guelta Zemmur, Western Sahara
  • Average humidity in September: 34%

The month with the highest relative humidity is November (41%).
The months with the lowest relative humidity are July and August (26%).

Average rainfall in September
Guelta Zemmur, Western Sahara
  • Average rainfall in September: 14mm

The wettest month (with the highest rainfall) is October (17mm).
The driest month (with the least rainfall) is March (0mm).

Average rainfall days in September
Guelta Zemmur, Western Sahara
  • Average rainfall days in September: 6.8 days

The month with the highest number of rainy days is September (6.8 days).
The month with the least rainy days is December (0.7 days).

Average daylight in September /
Average sunshine in September
Guelta Zemmur, Western Sahara
  • 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 month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is November (Average sunshine: 8h and 6min).

Average sunshine days in September
Guelta Zemmur, Western Sahara
  • Average sunshine days in September: 21.6 days

The month with the most sunshine days is December (30.3 days).
The month with the least sunshine days is September (21.6 days).

Average UV index in September
Guelta Zemmur, Western Sahara
  • Average UV index in September: 7

The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are January and December (UV index 5).

Average cloud cover in September
Guelta Zemmur, Western Sahara
  • Average cloud cover in September: 13

The month with the most cloud cover is September (Cloud cover 13).
The months with the least cloud cover are May and June (Cloud cover 7).

Average visibility in September
Guelta Zemmur, Western Sahara
  • 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).

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