September weather forecastPirpirituba, Brazil

Weather in September

The first month of the spring, September, is also a moderately hot month in Pirpirituba, Brazil, with temperature in the range of an average high of 29.5°C (85.1°F) and an average low of 19.8°C (67.6°F).

Temperature

The transition into September is marked with an average high-temperature of a still moderately hot 29.5°C (85.1°F), showing an insignificant shift from August's 28.5°C (83.3°F). Pirpirituba's average low-temperature in the month of September is recorded at an enjoyable 19.8°C (67.6°F).

Heat index

For September, the heat index is calculated to be a fiery hot 36°C (96.8°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In Pirpirituba, Brazil, the average relative humidity in September is 78%.

Rainfall

In September, in Pirpirituba, the rain falls for 15.2 days. Throughout September, 14mm (0.55") of precipitation is accumulated. Throughout the year, in Pirpirituba, there are 205.7 rainfall days, and 444mm (17.48") of precipitation is accumulated.

Daylight

In September, the average length of the day in Pirpirituba is 12h and 4min.
On the first day of the month, sunrise is at 05:22 and sunset at 17:21. On the last day of September, in Pirpirituba, sunrise is at 05:06 and sunset at 17:16 -03.

Sunshine

In Pirpirituba, the average sunshine in September is 6.3h.

UV index

March through September, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In September, a daily UV index of 6 turns into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.