September weather forecast
Mapaki, Sierra Leone

September signals a gradual easing out of the monsoon with a marked decrease in rainfall. Monsoon-loaded months yield to relatively calmer days with the onset of the post-monsoon season. A slower pace in October characterizes a welcoming transition after a long, moist trail of the rainy season. Exception to the typical trend of monsoon months, September registers a drop in average rainfall to 261mm (10.28"). Characterized by receding rains, a teensy uptick in sunshine, and a sustained tropical vibe, September carries Mapaki towards drier days.

Temperature

The ushering in of September brings an average high-temperature of a still moderately hot 28.9°C (84°F), closely mirroring the 27.6°C (81.7°F) of August. An average low-temperature of 21.8°C (71.2°F) is common during the nights of September.

Heat index

In September, the heat index is estimated at a very hot 37°C (98.6°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In Mapaki, the average relative humidity in September is 92%.

Rainfall

In September, the rain falls for 28.6 days. Throughout September, 261mm (10.28") of precipitation is accumulated. In Mapaki, during the entire year, the rain falls for 225.8 days and collects up to 1471mm (57.91") of precipitation.

Daylight

The average length of the day in September is 12h and 10min.
On the first day of the month, sunrise is at 06:39 and sunset at 18:55. On the last day of September, sunrise is at 06:35 and sunset at 18:38 GMT.

Sunshine

In September, the average sunshine in Mapaki is 5.2h.

UV index

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 6 translates into these guidelines:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Stay sun-safe with clothing that is both closely woven and worn loosely.