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 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
September
Weather in September
Temperature
As August transitions into September, Al Marj records an average high-temperature of a still hot 30°C (86°F), showing a gentle shift from the preceding month. September is noted for a mean low-temperature of 23.2°C (73.8°F).Heat index
The heat index value for September is evaluated at a hot 32°C (89.6°F). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.It is emphasized that the heat index's values are meant for shaded zones with mild winds. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Humidity
In September, the average relative humidity is 58%.Rainfall
In September, the rain falls for 3.5 days. Throughout September, 5mm (0.2") of precipitation is accumulated. In Al Marj, during the entire year, the rain falls for 67.7 days and collects up to 143mm (5.63") of precipitation.Daylight
The average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 06:11 and sunset at 19:01. On the last day of the month, sunrise is at 06:30 and sunset at 18:22 EET.
Sunshine
In Al Marj, the average sunshine in September is 9.9h.UV index
In Al Marj, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 6 during September translates into the following guidance:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Al Marj, Libya
- Average high temperature in September: 30°C
The warmest month (with the highest average high temperature) is August (31.5°C).
The month with the lowest average high temperature is January (16.8°C).
- Average low temperature in September: 23.2°C
The month with the highest average low temperature is August (24.1°C).
The coldest month (with the lowest average low temperature) is February (11.7°C).
Average pressure in September
Al Marj, Libya
- Average pressure in September: 1015mbar
The month with the highest atmospheric pressure is December (1019.9mbar).
The month with the lowest atmospheric pressure is July (1012.7mbar).
Average wind speed in September
Al Marj, Libya
- Average wind speed in September: 16.2km/h
The windiest months (with the highest average wind speed) are January and February (19.1km/h).
The calmest month (with the lowest average wind speed) is October (15.9km/h).
Average humidity in September
Al Marj, Libya
- Average humidity in September: 58%
The months with the highest relative humidity are January and December (64%).
The month with the lowest relative humidity is May (49%).
Average rainfall in September
Al Marj, Libya
- Average rainfall in September: 5mm
The wettest month (with the highest rainfall) is January (37mm).
The driest month (with the least rainfall) is July (0mm).
Average rainfall days in September
Al Marj, Libya
- Average rainfall days in September: 3.5 days
The month with the highest number of rainy days is December (13.2 days).
The month with the least rainy days is August (0.4 days).
Average daylight in September /
Average sunshine in September
Al Marj, Libya
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 9h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in September
Al Marj, Libya
- Average sunshine days in September: 24.7 days
The month with the most sunshine days is July (30.7 days).
The month with the least sunshine days is December (15 days).
Average UV index in September
Al Marj, Libya
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in September
Al Marj, Libya
- Average cloud cover in September: 9
The month with the most cloud cover is December (Cloud cover 31).
The month with the least cloud cover is July (Cloud cover 2).
Average visibility in September
Al Marj, Libya
- 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).
