September weather forecast
Mafanco, Guinea-Bissau

September, the first month of the autumn in Mafanco, is still a hot month, with an average temperature ranging between min 23°C (73.4°F) and max 31.7°C (89.1°F).

Temperature

The transition into September notes an average high-temperature of a still tropical 31.7°C (89.1°F), revealing a mild distinction from the 31°C (87.8°F) in August. Mafanco encounters an average low-temperature of 23°C (73.4°F) during September nights.

Heat index

September's average heat index is estimated at a burning hot 45°C (113°F). Attention: Heat exhaustion and heat cramps are anticipated. Prolonged effort can result in heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

The average relative humidity in September in Mafanco is 85%.

Rainfall

In Mafanco, Guinea-Bissau, during September, the rain falls for 23.9 days and regularly aggregates up to 145mm (5.71") of precipitation. Throughout the year, there are 107.6 rainfall days, and 593mm (23.35") of precipitation is accumulated.

Daylight

The average length of the day in September in Mafanco is 12h and 11min.
On the first day of September in Mafanco, sunrise is at 06:47 and sunset at 19:08. On the last day of the month, sunrise is at 06:46 and sunset at 18:48 GMT.

Sunshine

In September, the average sunshine is 7.2h.

UV index

In September, the average daily maximum UV index in Mafanco is 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. 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. Enhance your sun protection with tightly woven, yet airy clothing.