September weather forecast
Tonkolele, Sierra Leone

September, the first month of the autumn in Tonkolele, is still a warm month, with an average temperature fluctuating between 28.9°C (84°F) and 21.8°C (71.2°F).

Temperature

Tonkolele records a slight change with September's average high-temperatures adjusting to a still moderately hot 28.9°C (84°F) from August's 27.6°C (81.7°F). Tonkolele throughout September, records an average low-temperature of 21.8°C (71.2°F).

Heat index

Throughout September, the heat index is computed to be a sweltering 37°C (98.6°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In September, the average relative humidity is 92%.

Rainfall

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

Daylight

In Tonkolele, the average length of the day in September is 12h and 10min.
On the first day of September, sunrise is at 06:38 and sunset at 18:54. On the last day of the month, sunrise is at 06:34 and sunset at 18:38 GMT.

Sunshine

In September, the average sunshine is 5.2h.

UV index

In Tonkolele, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, the UV index of 6 transforms into the following advice:
Guard against overexposure. Protection from sun-induced harm is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.