September weather forecast
Tomena, Burkina Faso

The first month of the autumn, September, is still a tropical month in Tomena, Burkina Faso, with an average temperature ranging between min 22.5°C (72.5°F) and max 31.2°C (88.2°F).

Temperature

September observes an average high-temperature of a still tropical 31.2°C (88.2°F), marking an insignificant difference from August's 30.2°C (86.4°F). In September, Tomena experiences a temperature dip to an average of 22.5°C (72.5°F) at night.

Heat index

For most parts of September, the heat index is calculated to be a blistering 41°C (105.8°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Bear in mind that the heat index values are determined for shaded areas and light breezes. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In Tomena, the average relative humidity in September is 78%.

Rainfall

In September, the rain falls for 22.3 days. Throughout September, 94mm (3.7") of precipitation is accumulated. Throughout the year, there are 129.4 rainfall days, and 491mm (19.33") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 11min.
On the first day of September, sunrise is at 06:04 and sunset at 18:23. On the last day of the month, sunrise is at 06:02 and sunset at 18:04 GMT.

Sunshine

In Tomena, Burkina Faso, the average sunshine in September is 8.3h.

UV index

The average daily maximum UV index in September in Tomena is 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 7 during September translates into these guidelines:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. 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. Experience reduced UV exposure by about half when donning a wide-brim hat.