September weather forecast
Major Isidoro, Brazil

The first month of the spring, September, is also a moderately hot month in Major Isidoro, Brazil, with temperature in the range of an average low of 18.7°C (65.7°F) and an average high of 29.9°C (85.8°F).

Temperature

In September, Major Isidoro experiences a minor shift in meteorological conditions with average high-temperatures marked at a still moderately hot 29.9°C (85.8°F), closely mirroring the climate in August. An average low-temperature of 18.7°C (65.7°F) is recorded in the month of September in Major Isidoro, Brazil.

Heat index

In September, the heat index is computed to be a very hot 35°C (95°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
Heat index determinations are made taking into account the shade and light air movements. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

In September, the average relative humidity is 72%.

Rainfall

The month with the least rainfall in Major Isidoro is September, when the rain falls for 8.2 days and typically collects 7mm (0.28") of precipitation.

Daylight

In Major Isidoro, the average length of the day in September is 12h and 4min.
On the first day of September in Major Isidoro, Brazil, sunrise is at 05:29 and sunset at 17:25. On the last day of the month, sunrise is at 05:12 and sunset at 17:23 -03.

Sunshine

In September, the average sunshine in Major Isidoro, Brazil, is 7.6h.

UV index

April through September, with an average maximum UV index of 6, are months with the lowest UV index in Major Isidoro. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index of 6 during September leads to these instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.