September weather forecast
Moyamba, Sierra Leone

Moyamba in September starts revealing the end of the rainy season. The temperatures slightly begin to rise while the rainfall reduces gradually. The lengthy daylight hours persist while wind speeds slightly descend. The humidity levels remain significantly high although not as pronounced as in the peak rainy season. Importantly, September records a significant dip in rainfall to 247mm (9.72"), signaling the fading wet season.

Temperature

The advent of September in Moyamba, Sierra Leone, signifies a minor shift to an average high-temperature of a still moderately hot 28.8°C (83.8°F), aligning closely with August. During September, Moyamba's temperature falls to a steady low-temperature average of 22.1°C (71.8°F).

Heat index

In September, the average heat index is computed to be a torrid 37°C (98.6°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
Note that heat index values are valued for light wind and location in the shade. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

August and September, with an average relative humidity of 92%, are the most humid months in Moyamba.

Rainfall

In Moyamba, in September, during 28.7 rainfall days, 247mm (9.72") of precipitation is typically accumulated. Throughout the year, there are 249.6 rainfall days, and 1612mm (63.46") of precipitation is accumulated.

Daylight

In September, the average length of the day in Moyamba is 12h and 10min.
On the first day of September, sunrise is at 06:41 and sunset at 18:57. On the last day of the month, sunrise is at 06:37 and sunset at 18:41 GMT.

Sunshine

In September, the average sunshine is 4.8h.

UV index

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: In September, the maximum UV index of 6 suggests these recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.