September weather forecast
Santana do Cariri, Brazil

The first month of the spring, September, is a tropical month in Santana do Cariri, Brazil, with an average temperature ranging between max 31.7°C (89.1°F) and min 18.8°C (65.8°F).

Temperature

With the onset of September, the average high-temperature registers at a tropical 31.7°C (89.1°F), subtly different from August's 29.9°C (85.8°F). In Santana do Cariri, the average temperature during the nights of September marks a significant drop from the daily high, settling at an enjoyable 18.8°C (65.8°F).

Heat index

The heat index in September is computed to be a sweltering 35°C (95°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. 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.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

In Santana do Cariri, the average relative humidity in September is 54%.

Rainfall

In Santana do Cariri, in September, during 3 rainfall days, 3mm (0.12") of precipitation is typically accumulated. Throughout the year, in Santana do Cariri, Brazil, there are 172.3 rainfall days, and 764mm (30.08") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 4min.
On the first day of the month, sunrise is at 05:39 and sunset at 17:38. On the last day of September, in Santana do Cariri, Brazil, sunrise is at 05:23 and sunset at 17:33 -03.

Sunshine

September has the most sunshine of the year in Santana do Cariri, with an average of 9.5h of sunshine.

UV index

September through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 7 during September translates into the following directions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.