September weather forecast
Barra, The Gambia

September in Barra marks the subsiding of the heavy monsoon and the onset of the post-monsoon period. Rainfall decreases further to 31mm (1.22") from 121mm (4.76"), indicating a shift towards the dry period. Furthermore, while the temperature shoots up to a maximum of 29.5°C (85.1°F), the wind speed lessens to 12.8km/h (8mph). A significant decrease in cloud cover compared to August allows more sunshine to reach the ground. Weather in Barra during September thus initiates the drying process post monsoon season.

Temperature

The arrival of September in Barra, The Gambia, is marked by an average high-temperature of a still moderately hot 29.5°C (85.1°F), bearing a close resemblance to August. Barra experiences a steady nighttime temperature of 26.1°C (79°F) throughout the month of September.

Heat index

The heat index in September is estimated at a torrid 36°C (96.8°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Heat index specifics point out values are for conditions of shade and a slight breeze. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

August and September, with an average relative humidity of 80%, are the most humid months.

Rainfall

In Barra, during September, the rain falls for 17.6 days and regularly aggregates up to 121mm (4.76") of precipitation. Throughout the year, in Barra, there are 77 rainfall days, and 427mm (16.81") of precipitation is accumulated.

Daylight

The average length of the day in September in Barra, The Gambia, is 12h and 12min.
On the first day of September in Barra, sunrise is at 06:54 and sunset at 19:17. On the last day of the month, sunrise is at 06:55 and sunset at 18:56 GMT.

Sunshine

In Barra, the average sunshine in September is 8.2h.

UV index

The months with the highest UV index are January, April through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.