September weather forecast
Ancumbo, Guinea-Bissau

September, the first month of the autumn in Ancumbo, is a hot month, with temperature in the range of an average low of 25°C (77°F) and an average high of 30.5°C (86.9°F).

Temperature

The high-temperature average in September for Ancumbo is a tropical 30.5°C (86.9°F), staying closely aligned with August's conditions. During the month of September, the nighttime temperature in Ancumbo falls to an average of 25°C (77°F).

Heat index

During September, the heat index is evaluated at a blistering 40°C (104°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Heat index determinations are made taking into account the shade and light air movements. 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 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In September, the average relative humidity in Ancumbo is 81%.

Rainfall

In September, in Ancumbo, the rain falls for 20.7 days. Throughout September, 132mm (5.2") of precipitation is accumulated. In Ancumbo, during the entire year, the rain falls for 107.5 days and collects up to 726mm (28.58") of precipitation.

Daylight

In Ancumbo, the average length of the day in September is 12h and 11min.
On the first day of the month, sunrise is at 06:54 and sunset at 19:14. On the last day of September, in Ancumbo, sunrise is at 06:53 and sunset at 18:55 GMT.

Sunshine

The average sunshine in September is 7.5h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Ancumbo. The months with the lowest UV index in Ancumbo are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: An average maximum UV index of 7 in September leads to these recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.