September weather forecast
Farias Brito, Brazil

September, the first month of the spring in Farias Brito, is a tropical month, with temperature in the range of an average low of 18.8°C (65.8°F) and an average high of 31.7°C (89.1°F).

Temperature

The transition from August to September sees an average high-temperature of a hot 31.7°C (89.1°F), indicating a minor variance from the prior month. Throughout September, Farias Brito acknowledges a distinct difference between its daytime highs and the steady low average of 18.8°C (65.8°F).

Heat index

In September, the average heat index is appraised at a torrid 35°C (95°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. 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 largely significant for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In September, the average relative humidity is 54%.

Rainfall

In Farias Brito, during September, the rain falls for 3 days and regularly aggregates up to 3mm (0.12") of precipitation. Throughout the year, there are 172.3 rainfall days, and 764mm (30.08") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 05:38 and sunset at 17:37. On the last day of September, sunrise is at 05:23 and sunset at 17:33 -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 September through November, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: In September, the maximum UV index of 7 translates into these guidelines:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.