September weather forecast
Bomi, Sierra Leone

September implies an initial farewell to the wet season in Bomi. The temperature shows a minor increase to a more pleasant 28.4°C (83.1°F), indicating an impending transition. Although the rainfall and relative humidity begin to subside, September still harbours significant precipitation. The increase in sunshine hours indicates a transition towards the dry season. Despite some leftover sentiments of the wet season, a shift to more balanced weather conditions is discernible during this month.

Temperature

The commencement of September records an average high-temperature of a still warm 28.4°C (83.1°F), barely varying from August's 27°C (80.6°F). During September, the temperature in Bomi is averaged to a low of 21.5°C (70.7°F) at night.

Heat index

The heat index value for September is appraised at a fiery hot 35°C (95°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. 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.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In Bomi, the average relative humidity in September is 92%.

Rainfall

In Bomi, in September, during 29.7 rainfall days, 260mm (10.24") of precipitation is typically accumulated. Throughout the year, there are 270.4 rainfall days, and 1590mm (62.6") of precipitation is accumulated.

Daylight

In September, the average length of the day in Bomi is 12h and 10min.
On the first day of the month, sunrise is at 06:38 and sunset at 18:53. On the last day of September, sunrise is at 06:34 and sunset at 18:37 GMT.

Sunshine

In September, the average sunshine is 4.6h.

UV index

In Bomi, Sierra Leone, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: In September, the maximum UV index of 6 suggests these recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.