September weather forecast
Niandan Koura, Guinea

September, the first month of the autumn in Niandan Koura, is a tropical month, with an average temperature fluctuating between 21.9°C (71.4°F) and 30.8°C (87.4°F).

Temperature

September's commencement is accompanied by an average high-temperature of a hot 30.8°C (87.4°F), diverging marginally from August's 29.1°C (84.4°F). Niandan Koura's average low-temperature for the month of September records at a pleasant 21.9°C (71.4°F).

Heat index

For September, the heat index is calculated to be a blisteringly hot 41°C (105.8°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

The average relative humidity in September is 81%.

Rainfall

In September, the rain falls for 21.4 days. Throughout September, 93mm (3.66") of precipitation is accumulated. Throughout the year, there are 120.8 rainfall days, and 630mm (24.8") of precipitation is accumulated.

Daylight

In September, the average length of the day in Niandan Koura is 12h and 11min.
On the first day of September in Niandan Koura, sunrise is at 06:27 and sunset at 18:47. On the last day of the month, sunrise is at 06:26 and sunset at 18:28 GMT.

Sunshine

The average sunshine in September is 8.3h.

UV index

In Niandan Koura, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.
Note: A daily maximum UV index of 7 in September translates into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Boost your sun resistance with garments that are densely woven yet spacious.