This report describes the typical weather at the Marsa Alam International Airport (Marsa Alam, Egypt) weather station over the course of an average September. It is based on the historical records from 2004 to 2012. Earlier records are either unavailable or unreliable.
Marsa Alam has a hot desert climate. The area within 25 mi of this station is covered by oceans and seas (94%) and lakes and rivers (6%).
The month of September is characterized by gradually falling daily high temperatures, with daily highs decreasing from 95°F to 91°F over the course of the month, exceeding 98°F or dropping below 87°F only one day in ten.
Over the course of September, the length of the day is gradually decreasing. The shortest day of the month is September 30 with 11:56 hours of daylight; the longest day is September 1 with 12:38 hours of daylight.
The earliest sunrise is at 5:22am on September 1; the latest sunset is at 6:01pm on September 1; the latest sunrise is at 5:34am on September 30; the earliest sunset is at 5:29pm on September 30.
Daylight saving time (DST) is not observed in 2012.
The median cloud cover ranges from 56% (partly cloudy) to 66% (partly cloudy). The trend is for the sky to be clearing with the median cloud cover decreasing by 9% from the start to the end of the month.
On September 15, a representative day, the sky is clear or mostly clear 1% of the time, partly cloudy 2% of the time, and mostly cloudy or overcast 2% of the time.
There is either very little precipitation at this location in September, or the weather station does not reliably report the conditions.
Either snow is exceptionally unlikely to fall at this location in September or this station does not reliably report precipitation types.
The relative humidity typically ranges from 23% (dry) to 58% (mildly humid) over the course of a typical September, rarely dropping below 17% (dry), or exceeding 82% (humid).
The air is driest around September 1, at which time the relative humidity drops below 27% (dry) three days out of four; it is most humid around September 30, rising above 45% (comfortable) three days out of four.
Dew point is often a better measure of how comfortable a person will find the weather than relative humidity because it more directly relates to whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid.
Over the course of a typical September, the dew point typically varies from 46°F (dry) to 65°F (mildy humid) and is rarely below 39°F (dry) or above 70°F (muggy).
The time of the month between September 1 and September 30 is the most comfortable, with dew points that are neither too dry nor too muggy.
Over the course of September typical wind speeds vary from 5 mph to 22 mph (light breeze to fresh breeze), rarely exceeding 27 mph (strong breeze).
The highest average wind speed of 14 mph (moderate breeze) occurs around September 5, at which time the average daily maximum wind speed is 22 mph (fresh breeze).
The lowest average wind speed of 13 mph (moderate breeze) occurs around September 30, at which time the average daily maximum wind speed is 20 mph (fresh breeze).