, the first month of the autumn in Alexandria
, is also a moderately hot month, with an average temperature fluctuating between 29.6°C (85.3°F) and 21.3°C (70.3°F).
The perfect water temperature of 27.3°C (81.1°F) with 1mm (0.04") of accumulated rainfall and only 0.2 rainfall days, makes September a great period for swimming and other water activities.
In Alexandria, Egypt
, the average high-temperature in September is relatively the same as in August
- a warm 29.6°C (85.3°F). In Alexandria, the average low-temperature is 21.3°C (70.3°F).
In September, the average heat index is computed to be a hot 33°C (91.4°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.Note
: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like pregnancy, clothing, differences in body mass, height, and shape, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The average relative humidity in September in Alexandria is 67%.
In September, in Alexandria, Egypt, the rain falls for 0.2 days. Throughout September, 1mm (0.04") of precipitation is accumulated. Throughout the year, in Alexandria, there are 46.8 rainfall days, and 196mm (7.72") of precipitation is accumulated.
In Alexandria, the average seawater temperature in September is 27.3°C (81.1°F).Note
: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.
The average length of the day in September is 12h and 21min.
On the first day of September, sunrise is at 5:36 am and sunset at 6:24 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 5:47 pm EET.
In Alexandria, the average sunshine in September is 9.9h.
In Alexandria, the average daily maximum UV index in September is 9. A UV Index estimate of 8 to 10 represents a very high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note
: The daily maximum UV index of 9 in September interpret into the following advice:
Take special precautions, as unprotected skin can be damaged and can burn quickly. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.