September weather forecast
Koforidua, Ghana

September sees Koforidua experiencing the final rush of the rainy season with the highest recorded rainfall of the year, a whopping 186mm (7.32"). Despite the high rainfall, the temperatures begin to climb from the previous month's lows. The humidity remains high, indicating that the city is nearing the end of the wet season. The lack of sunshine, paired with the high cloud cover, accentuates the rainy environment. Transitioning into October, the weather in Koforidua dries out as the rainfall significantly reduces.

Temperature

The transition into September in Koforidua notes an average high-temperature of a still moderately hot 29°C (84.2°F), revealing a mild distinction from the 28.9°C (84°F) in August. Koforidua experiences a consistent average temperature of 21.9°C (71.4°F) throughout the nights in September.

Heat index

September's mean heat index is appraised at a torrid 36°C (96.8°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

September is the most humid month, with an average relative humidity of 87%.

Rainfall

The month with the most rainfall in Koforidua is September, when the rain falls for 28.6 days and typically aggregates up to 186mm (7.32") of precipitation.

Daylight

In Koforidua, the average length of the day in September is 12h and 9min.
On the first day of the month, sunrise is at 05:54 and sunset at 18:07. On the last day of September, sunrise is at 05:48 and sunset at 17:53 GMT.

Sunshine

The month with the least sunshine is September, with an average of 5.7h of sunshine.

UV index

In Koforidua, Ghana, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 6 transforms into these recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Employ a wide-brim hat for potent defense against up to 50% of UV rays.