September weather forecast
Maracaçumé, Brazil

The first month of the spring, September, is still a tropical month in Maracaçumé, Brazil, with an average temperature varying between 21.6°C (70.9°F) and 32.5°C (90.5°F).

Temperature

September denotes a minimal variation in the average high-temperature to a still hot 32.5°C (90.5°F) from August's 32.2°C (90°F). In the month of September, the average temperature dips to an agreeable 21.6°C (70.9°F) during the night.

Heat index

Throughout September, the heat index is evaluated at a blazing hot 45°C (113°F). Alert: Heat cramps and heat exhaustion are likely to occur. Prolonged exertion can lead to heatstroke.
Heat index determinations are made taking into account the shade and light air movements. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

The average relative humidity in September is 77%.

Rainfall

The month with the least rainfall is September, when the rain falls for 20.7 days and typically collects 31mm (1.22") of precipitation.

Daylight

The average length of the day in September is 12h and 6min.
On the first day of September, sunrise is at 06:01 and sunset at 18:05. On the last day of the month, sunrise is at 05:49 and sunset at 17:57 -03.

Sunshine

The average sunshine in September is 6.7h.

UV index

September and October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 7 in September transforms into this advice:
Deter overexposure. Protecting against the sun's effects is essential. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.