September weather forecastMatinha, Brazil

Weather in September

The first month of the spring, September, is still a hot month in Matinha, Brazil, with temperature in the range of an average low of 22.5°C (72.5°F) and an average high of 34.5°C (94.1°F).

Temperature

The start of September sees the average high-temperature at a still tropical 34.5°C (94.1°F), showing little difference from August's 33.3°C (91.9°F). A sharp reduction from the daytime highs is witnessed in Matinha during September, with nighttime temperatures averaging a low of 22.5°C (72.5°F).

Heat index

Throughout September, the heat index is computed to be a burning hot 49°C (120.2°F). Be prepared: Heat cramps and heat exhaustion are probable. Continued activity may lead to heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are essentially critical 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.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

In September, the average relative humidity in Matinha, Brazil, is 70%.

Rainfall

September is the month with the least rainfall. Rain falls for 10.7 days and accumulates 14mm (0.55") of precipitation.

Daylight

In Matinha, the average length of the day in September is 12h and 5min.
On the first day of September in Matinha, sunrise is at 05:58 and sunset at 18:01. On the last day of the month, sunrise is at 05:45 and sunset at 17:54 -03.

Sunshine

In September, the average sunshine is 7.6h.

UV index

The months with the highest UV index are May, July through November, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index, 7 in September, converts into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.