September weather forecastBinkolo, Sierra Leone
September
Weather in September
September in Binkolo brings weather conditions that are akin to August, albeit with a minor reduction in rainfall to 185mm (7.28"). As the wet season draws to a close, the cloud cover begins to diminish gradually, marking a transition. Temperatures remain similar to those of the previous month while relative humidity starts showing a decreasing trend. Winds remain relatively calm, not affecting the overall weather much. Despite the showers, the cooling temperatures offer a slightly more comfortable environment.Temperature
The onset of September brings an average high-temperature of a still warm 28.9°C (84°F), nearly matching the August temperature. Throughout September, Binkolo encounters an average temperature drop to an agreeable 21.8°C (71.2°F).Heat index
Throughout September, the heat index is evaluated at a sweltering 37°C (98.6°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Heat index specifics point out values are for conditions of shade and a slight breeze. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to 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.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
In Binkolo, the average relative humidity in September is 92%.Rainfall
In Binkolo, in September, during 28.6 rainfall days, 261mm (10.28") of precipitation is typically accumulated. Throughout the year, there are 225.8 rainfall days, and 1471mm (57.91") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 10min.On the first day of September, sunrise is at 06:39 and sunset at 18:56. On the last day of the month, sunrise is at 06:36 and sunset at 18:39 GMT.
Sunshine
The average sunshine in September in Binkolo, Sierra Leone, is 5.2h.UV index
In Binkolo, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 6 during September, leads to the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Binkolo, Sierra Leone
- Average high temperature in September: 28.9°C
The warmest month (with the highest average high temperature) is March (38.4°C).
The month with the lowest average high temperature is August (27.6°C).
- Average low temperature in September: 21.8°C
The month with the highest average low temperature is April (24°C).
The coldest month (with the lowest average low temperature) is December (19.7°C).
Average pressure in September
Binkolo, Sierra Leone
- Average pressure in September: 1013.1mbar
The month with the highest atmospheric pressure is July (1014.1mbar).
The months with the lowest atmospheric pressure are February and March (1010.5mbar).
Average wind speed in September
Binkolo, Sierra Leone
- Average wind speed in September: 4.7km/h
The windiest month (with the highest average wind speed) is April (5.8km/h).
The calmest month (with the lowest average wind speed) is November (3.3km/h).
Average humidity in September
Binkolo, Sierra Leone
- Average humidity in September: 92%
The month with the highest relative humidity is August (93%).
The months with the lowest relative humidity are January and February (58%).
Average rainfall in September
Binkolo, Sierra Leone
- Average rainfall in September: 261mm
The wettest month (with the highest rainfall) is August (332mm).
The driest month (with the least rainfall) is December (3mm).
Average rainfall days in September
Binkolo, Sierra Leone
- Average rainfall days in September: 28.6 days
The month with the highest number of rainy days is July (30.3 days).
The month with the least rainy days is January (2.2 days).
Average daylight in September /
Average sunshine in September
Binkolo, Sierra Leone
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in September: 5h and 12min
The month with the most sunshine is January (Average sunshine: 9h and 48min).
The month with the least sunshine is August (Average sunshine: 3h and 42min).
Average sunshine days in September
Binkolo, Sierra Leone
- Average sunshine days in September: 0.7 days
The month with the most sunshine days is January (27.4 days).
The month with the least sunshine days is July (0.5 days).
Average UV index in September
Binkolo, Sierra Leone
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 5).
Average cloud cover in September
Binkolo, Sierra Leone
- Average cloud cover in September: 76
The month with the most cloud cover is August (Cloud cover 83).
The months with the least cloud cover are January and February (Cloud cover 15).
Average visibility in September
Binkolo, Sierra Leone
- Average visibility in September: 5km
The months with the highest visibility are February, March and April (10km).
The month with the lowest visibility is September (5km).





