September weather forecastContabane, Guinea-Bissau

Weather in September

September, the first month of the autumn in Contabane, is a hot month, with an average temperature ranging between min 23.6°C (74.5°F) and max 30.9°C (87.6°F).

Temperature

Contabane transitions into September recording an average high-temperature of a hot 30.9°C (87.6°F), closely aligning with the preceding month's temperature. Contabane experiences a mean temperature of 23.6°C (74.5°F) during September nights.

Heat index

For September, the heat index is computed to be a blistering 42°C (107.6°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

August and September, with an average relative humidity of 85%, are the most humid months in Contabane.

Rainfall

In Contabane, in September, during 22.2 rainfall days, 168mm (6.61") of precipitation is typically accumulated. In Contabane, during the entire year, the rain falls for 109.7 days and collects up to 868mm (34.17") of precipitation.

Daylight

In September, the average length of the day is 12h and 11min.
On the first day of September in Contabane, sunrise is at 06:48 and sunset at 19:08. On the last day of the month, sunrise is at 06:47 and sunset at 18:49 GMT.

Sunshine

The average sunshine in September is 6.4h.

UV index

The months with the highest UV index are January through July, September through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 7 in September translates into this advice:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.