The month of
September brings some relief from the high summer temperatures in
Al-Qayrawan. Gradual cooling begins, and there's a significant rise in humidity levels as well as in the number of rainfall days. Despite high temperatures up to 31.9°C (89.4°F), a decrease in daylight hours signifies the winding down of the summer season. The city prepares to transition to autumn, making it a good time for outdoor activities before the winter winds sweep in.
Temperature
A mild shift in the average high-temperature occurs in September in Al-Qayrawan, reducing from a sweltering 36.3°C (97.3°F) in
August to a tropical 31.9°C (89.4°F). Al-Qayrawan's average low-temperature of 19.1°C (66.4°F) in September reflects a considerable decline from the daytime peak.
Heat index
The heat index in September is appraised at a fiery hot 37°C (98.6°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Consider that heat index readings are for situations in the shade and light wind. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values remain especially vital for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.
Humidity
The average relative humidity in September in Al-Qayrawan is 59%.
Rainfall
In Al-Qayrawan, during September, the rain falls for 4 days and regularly aggregates up to 39mm (1.54") of precipitation. In Al-Qayrawan, during the entire year, the rain falls for 45 days and collects up to 313mm (12.32") of precipitation.
Daylight
In September, the average length of the day is 12h and 24min.
On the first day of September in Al-Qayrawan, sunrise is at 05:52 and sunset at 18:46. On the last day of the month, sunrise is at 06:14 and sunset at 18:04 CET.
Sunshine
In Al-Qayrawan,
Tunisia, the average sunshine in September is 9h.