September weather forecast
Massapê, Brazil

The first month of the spring, September, is a sweltering month in Massapê, Brazil, with temperature in the range of an average high of 35.4°C (95.7°F) and an average low of 22.7°C (72.9°F).

Temperature

The arrival of September sees an average high-temperature of a sweltering 35.4°C (95.7°F), hardly diverging from August's 34.5°C (94.1°F). A significant temperature decrease to an average an agreeable 22.7°C (72.9°F) characterizes Massapê's nighttime temperatures during September.

Heat index

The heat index in September is evaluated at a blazing hot 45°C (113°F). Keep guard: Heat cramps and heat exhaustion are likely. Continued activity increases the risk of heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

September and October, with an average relative humidity of 57%, are the least humid months in Massapê.

Rainfall

The month with the least rainfall in Massapê, Brazil, is September, when the rain falls for 5.1 days and typically collects 3mm (0.12") of precipitation.

Daylight

In September, the average length of the day in Massapê is 12h and 5min.
On the first day of September, sunrise is at 05:39 and sunset at 17:42. On the last day of the month, sunrise is at 05:26 and sunset at 17:35 -03.

Sunshine

The average sunshine in September is 9.1h.

UV index

July through December, 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: The daily high UV index of 7 in September translates into this advice:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. 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. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.