September weather forecastDakar, Gabon

Weather in September

September, the first month of the spring in Dakar, is still a tropical month, with an average temperature ranging between max 30.7°C (87.3°F) and min 22.2°C (72°F).

Temperature

Dakar logs a shift to a still hot 30.7°C (87.3°F) as the average high temperature in September, the same as August. In the month of September, Dakar witnesses a consistent average low-temperature of 22.2°C (72°F).

Heat index

For September, the heat index is calculated to be a blisteringly hot 40°C (104°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

In Dakar, the average relative humidity in September is 80%.

Rainfall

In Dakar, Gabon, in September, during 19.2 rainfall days, 62mm (2.44") of precipitation is typically accumulated. Throughout the year, there are 263 rainfall days, and 1311mm (51.61") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 7min.
On the first day of the month, sunrise is at 06:17 and sunset at 18:22. On the last day of September, sunrise is at 06:06 and sunset at 18:13 WAT.

Sunshine

September has the least sunshine of the year in Dakar, with an average of 5.2h of sunshine.

UV index

The months with the lowest UV index in Dakar are March, May through November, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the maximum UV index of 6 suggests these recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Opt for tightly woven and loose clothing to enhance protection from the Sun.