September weather forecastOkiene, Congo

Weather in September

September, the first month of the spring in Okiene, is still a tropical month, with an average temperature ranging between min 22.7°C (72.9°F) and max 32.5°C (90.5°F).

Temperature

As Okiene welcomes September, the average high-temperature is noted at a still tropical 32.5°C (90.5°F), closely aligning with the preceding month. An average nighttime temperature of 22.7°C (72.9°F) is witnessed in Okiene throughout September.

Heat index

For September, the heat index is estimated at a scorching 42°C (107.6°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
When referencing the heat index, its values are suitable for shady environments and light breezes. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. 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. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In September, the average relative humidity in Okiene, Congo, is 70%.

Rainfall

In Okiene, during September, the rain falls for 27.1 days and regularly aggregates up to 109mm (4.29") of precipitation. Throughout the year, there are 277.8 rainfall days, and 1195mm (47.05") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 5min.
On the first day of the month, sunrise is at 05:54 and sunset at 17:57. On the last day of September, in Okiene, sunrise is at 05:41 and sunset at 17:49 WAT.

Sunshine

In September, the average sunshine in Okiene is 8.7h.

UV index

September is the month with the lowest UV index in Okiene, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.
Note: An average UV index of 6 in September transforms into this advice:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. A hat with a broad brim is indispensable, filtering out up to half of UV rays.