September weather forecast
Tillabéri, Niger

In September, the weather in Tillabéri, Niger begins to transition from the rainy season to the dry season. While the number of rainy days and the amount of rainfall decrease significantly compared to August, it is the drop in temperatures and humidity that are truly noteworthy. Despite the receding rains, the sunshine hours resume to longer durations. A mild decline in wind speeds also occurs during this month as the yearly cycle nears its end.

Temperature

Tillabéri marks the onset of September with an average high-temperature of a still sweltering 37.6°C (99.7°F), subtly divergent from August's 35.8°C (96.4°F). In the month of September, Tillabéri experiences an average low-temperature of 28.5°C (83.3°F).

Heat index

The heat index for September is calculated to be an extremely hot 43°C (109.4°F). Remain alert: Heat exhaustion and heat cramps are predicted. Extended effort can lead to heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

In Tillabéri, the average relative humidity in September is 41%.

Rainfall

In Tillabéri, Niger, in September, it is raining for 5.1 days, with typically 6mm (0.24") of accumulated precipitation. In Tillabéri, during the entire year, the rain falls for 38.4 days and collects up to 119mm (4.69") of precipitation.

Daylight

In September, the average length of the day is 12h and 13min.
On the first day of September in Tillabéri, sunrise is at 06:42 and sunset at 19:05. On the last day of the month, sunrise is at 06:43 and sunset at 18:44 WAT.

Sunshine

The average sunshine in September is 9.8h.

UV index

In September, the average daily maximum UV index in Tillabéri, Niger, is 8. A UV Index reading of 8 to 10 represents a very high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The UV index of 8 in September translates into these instructions:
It is crucial to take precautions; skin and eyes can get damaged if left unprotected. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.