September weather forecast
Gandiaye, Senegal

September brings some relief to Gandiaye's residents as rainfall levels start to decrease. Yet, it remains a significantly wet month, with the city still floating in the remnants of the wet season. Decrease in rainfall levels from 128mm (5.04") in August to 82mm (3.23") points at the beginning of the end of the rainy season. Despite the reduction in rain, September weather conditions remain damp with milder temperatures. As the end of the month approaches, a clearer sky ensues and slowly transits towards the drier latter part of the year.

Temperature

The commencement of September in Gandiaye introduces an average high-temperature of a still tropical 33.9°C (93°F), closely mirroring the preceding month. An average low-temperature of 24.8°C (76.6°F) marks the month of September.

Heat index

The heat index for September is evaluated at a life-threatening hot 48°C (118.4°F). Keep alert: Heat cramps and heat exhaustion are probable. Heatstroke is a potential danger with continued physical activity.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

September is the most humid month in Gandiaye, with an average relative humidity of 74%.

Rainfall

In Gandiaye, during September, the rain falls for 19.9 days and regularly aggregates up to 82mm (3.23") of precipitation. In Gandiaye, during the entire year, the rain falls for 75.6 days and collects up to 317mm (12.48") of precipitation.

Daylight

In September, the average length of the day in Gandiaye is 12h and 13min.
On the first day of the month, sunrise is at 06:53 and sunset at 19:16. On the last day of September, in Gandiaye, sunrise is at 06:54 and sunset at 18:55 GMT.

Sunshine

In Gandiaye, the average sunshine in September is 8.6h.

UV index

January, February, July through September, November and December, with an average maximum UV index of 7, are months with the lowest UV index in Gandiaye, Senegal. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 7 in September interprets into the following advice:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.