The first month of the spring,
September, is also a hot month in
Mossoró,
Brazil, with temperature in the range of an average high of 34.4°C (93.9°F) and an average low of 21.9°C (71.4°F).
Temperature
In September, the average high-temperature registers at a still tropical 34.4°C (93.9°F), nearly identical to
August's 33.8°C (92.8°F). Mossoró's nighttime temperatures in September reflect a stark contrast to the day's highs, falling to an average low of 21.9°C (71.4°F).
Heat index
The heat index value during September is appraised at a blisteringly hot 44°C (111.2°F).
Be alert: Heat exhaustion along with heat cramps are probable. Heatstroke is a threat with sustained physical activity.
Understanding the heat index involves considering values for shaded locales with light wind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. As body temperatures escalate without effective heat release, one might face dehydration threats.
Humidity
With an average relative humidity of 61%, September is the least humid month in Mossoró, Brazil.
Rainfall
In Mossoró, in September, 6mm (0.24") of precipitation is typically accumulated. During the entire year, Mossoró aggregates up to 788mm (31.02") of precipitation.
Daylight
The average length of the day in September in Mossoró is 12h and 5min.
On the first day of the month, sunrise is at 05:28 and sunset at 17:29. On the last day of September, in Mossoró, sunrise is at 05:14 and sunset at 17:23 -03.
Sunshine
In September, the average sunshine in Mossoró is 9.1h.