September weather forecast
Okoyo, Congo

September brings with it an uptick in rainfall, suggesting a slow return of the wet season. Okoyo receives a comparatively high rainfall of 130mm (5.12"), and temperatures remain between 22.7°C (72.9°F) and 31.4°C (88.5°F). The humidity also sees an increase, bringing more moisture into the air. As the month progresses, sunshine hours reduce but the days remain warm and humid. September, with its blend of wet and dry conditions, ushers in a seasonal change.

Temperature

In Okoyo, September's average high-temperature stands at a still tropical 31.4°C (88.5°F), closely related to the preceding month. Okoyo records an average temperature drop to a pleasant 22.7°C (72.9°F) in September.

Heat index

During September, the heat index is evaluated at a blistering 40°C (104°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. 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 heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

In Okoyo, the average relative humidity in September is 73%.

Rainfall

In Okoyo, in September, during 27.5 rainfall days, 130mm (5.12") of precipitation is typically accumulated. Throughout the year, there are 276.3 rainfall days, and 1248mm (49.13") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 6min.
On the first day of the month, sunrise is at 05:56 and sunset at 18:02. On the last day of September, sunrise is at 05:45 and sunset at 17:53 WAT.

Sunshine

In Okoyo, the average sunshine in September is 8.4h.

UV index

September is the month with the lowest UV index, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 6 transforms into these recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.