September weather forecastAiuaba, Brazil

Weather in September

The first month of the spring, September, is also a hot month in Aiuaba, Brazil, with temperature in the range of an average high of 33.5°C (92.3°F) and an average low of 21°C (69.8°F).

Temperature

In September, Aiuaba's weather conditions record an average high-temperature of a still tropical 33.5°C (92.3°F), demonstrating little divergence from the preceding month. Aiuaba in September observes a sharp transition from the daytime heat, falling to an average low of 21°C (69.8°F).

Heat index

In September, the average heat index is computed to be a very hot 37°C (98.6°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Heat index determinations are made taking into account the shade and light air movements. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an estimation of the warmth sensation when considering humidity levels. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

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

Rainfall

The month with the least rainfall is September, when the rain falls for 3.5 days and typically collects 2mm (0.08") of precipitation.

Daylight

The average length of the day in September is 12h and 4min.
On the first day of September, 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

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

UV index

August through December, with an average maximum UV index of 7, are months with the highest UV index in Aiuaba. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 7 during September translates into these guidelines:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.