September weather forecast
Mauriti, Brazil

The first month of the spring, September, is still a tropical month in Mauriti, Brazil, with an average temperature ranging between max 32.9°C (91.2°F) and min 19.4°C (66.9°F).

Temperature

With the advent of September, Mauriti's high-temperatures adjust to a still tropical 32.9°C (91.2°F), closely aligning with the preceding month. In September, the nighttime temperature in Mauriti, Brazil, plummets remarkably from the daily apex to a steady average of 19.4°C (66.9°F).

Heat index

The heat index for September is estimated at a sweltering 37°C (98.6°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In September, the average relative humidity in Mauriti is 52%.

Rainfall

The months with the least rainfall in Mauriti are August and September Rain falls for 2.7 days and accumulates 2mm (0.08") of rain.

Daylight

In Mauriti, Brazil, the average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 05:35 and sunset at 17:34. On the last day of September, sunrise is at 05:19 and sunset at 17:29 -03.

Sunshine

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

UV index

September through December, with an average maximum UV index of 7, are months with the highest UV index in Mauriti. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 7 in September interprets into the following advice:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.