September weather forecast
Arapoema, Brazil

September, the first month of the spring in Arapoema, is also a fiery hot month, with an average temperature ranging between min 23.8°C (74.8°F) and max 37.2°C (99°F).

Temperature

Arapoema reaches its highest average temperatures in September, measuring 37.2°C (99°F) at the peak and 23.8°C (74.8°F) at the lowest.

Heat index

The heat index in September is estimated at a scorching 42°C (107.6°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. 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 'apparent temperature' or 'feels like', comes about by integrating the temperature readings with the humidity levels. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

The months with the lowest humidity in Arapoema are August and September, with an average relative humidity of 40%.

Rainfall

In Arapoema, during September, the rain falls for 4.6 days and regularly aggregates up to 8mm (0.31") of precipitation. Throughout the year, in Arapoema, Brazil, there are 213.3 rainfall days, and 1154mm (45.43") of precipitation is accumulated.

Daylight

In Arapoema, the average length of the day in September is 12h and 4min.
On the first day of September in Arapoema, sunrise is at 06:16 and sunset at 18:15. On the last day of the month, sunrise is at 06:00 and sunset at 18:11 -03.

Sunshine

The average sunshine in September in Arapoema is 9.6h.

UV index

May through September and November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: In September, the maximum UV index of 7 translates into these guidelines:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.