September weather forecast
Yundum, The Gambia

From the peak in August, Yundum sees a considerable drop in rainfall in September. Weather conditions inch closer to normal, transitioning from the wet season. The environmental attributes gradually reduce the intensity of the monsoon's effect. Wind speed during September significantly drops compared to the previous months. This month bids a gentle farewell to the monsoon and readies the city for the upcoming dry season.

Temperature

Yundum, The Gambia, indicates an average high-temperature of a still moderately hot 29.5°C (85.1°F) in September, showing minor variation from August's 29.1°C (84.4°F). Yundum's average temperature during the nights of September is recorded at a still moderately hot 26.1°C (79°F).

Heat index

In September, the average heat index is calculated to be a torrid 36°C (96.8°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Heat index determinations are made taking into account the shade and light air movements. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The months with the highest humidity in Yundum, The Gambia, are August and September, with an average relative humidity of 80%.

Rainfall

In September, the rain falls for 17.6 days. Throughout September, 121mm (4.76") of precipitation is accumulated. In Yundum, during the entire year, the rain falls for 77 days and collects up to 427mm (16.81") of precipitation.

Daylight

In Yundum, the average length of the day in September is 12h and 12min.
On the first day of the month, sunrise is at 06:55 and sunset at 19:17. On the last day of September, in Yundum, sunrise is at 06:55 and sunset at 18:57 GMT.

Sunshine

In Yundum, 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 value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 7 during September leads to these advisories:
Prevent overexposure. Protection from the sun's harmful effects is needed. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.