September weather forecast
Arneiroz, Brazil

September, the first month of the spring in Arneiroz, is still a hot month, with an average temperature fluctuating between 21°C (69.8°F) and 33.5°C (92.3°F).

Temperature

Arneiroz commences September with an average high-temperature of a still hot 33.5°C (92.3°F), maintaining a close resemblance to the previous month. Despite a significant daily temperature range, Arneiroz's temperature falls to a steady low-temperature average of 21°C (69.8°F) in September.

Heat index

The average heat index in September is calculated to be a sweltering 37°C (98.6°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

With an average relative humidity of 48%, September is the least humid month.

Rainfall

September is the month with the least rainfall. Rain falls for 3.5 days and accumulates 2mm (0.08") of precipitation.

Daylight

In September, the average length of the day in Arneiroz, Brazil, is 12h and 4min.
On the first day of September in Arneiroz, sunrise is at 05:40 and sunset at 17:40. On the last day of the month, sunrise is at 05:25 and sunset at 17:35 -03.

Sunshine

With an average of 9.5h of sunshine, September has the most sunshine of the year.

UV index

The months with the highest UV index are August through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, an average UV index of 7 transforms into the following instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.