September weather forecast
Felipe Guerra, Brazil

September, the first month of the spring in Felipe Guerra, is also a hot month, with an average temperature varying between 22.3°C (72.1°F) and 34°C (93.2°F).

Temperature

As August transitions into September, the average high-temperature rests at a still tropical 34°C (93.2°F), maintaining a close resemblance to the previous month. During September, Felipe Guerra's temperature averages to a pleasant 22.3°C (72.1°F) at night.

Heat index

The average heat index in September is estimated at an extremely hot 41°C (105.8°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

With an average relative humidity of 58%, September is the least humid month.

Rainfall

In Felipe Guerra, in September, during 2.3 rainfall days, 2mm (0.08") of precipitation is typically accumulated. In Felipe Guerra, during the entire year, the rain falls for 145 days and collects up to 500mm (19.69") of precipitation.

Daylight

The average length of the day in September is 12h and 5min.
On the first day of the month, sunrise is at 05:30 and sunset at 17:30. On the last day of September, in Felipe Guerra, sunrise is at 05:15 and sunset at 17:25 -03.

Sunshine

September has the most sunshine of the year, with an average of 9.7h of sunshine.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In September, the maximum UV index of 7 translates into these guidelines:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.