September weather forecast
Lagoa do Sítio, Brazil

September, the first month of the spring in Lagoa do Sítio, is a fiery hot month, with an average temperature varying between 21.8°C (71.2°F) and 35.5°C (95.9°F).

Temperature

September's arrival brings an average high-temperature of a very hot 35.5°C (95.9°F), slightly deviating from August's 34.1°C (93.4°F). Lagoa do Sítio logs a substantial downturn to a pleasant 21.8°C (71.2°F) during September nights, a considerable shift from daytime highs.

Heat index

The average heat index in September is estimated at a fiery hot 39°C (102.2°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Consider that heat index readings are for situations in the shade and light wind. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant 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.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

September is the least humid month in Lagoa do Sítio, with an average relative humidity of 42%.

Rainfall

January through July, September through December are months with rainfall. September is the first month it rains. Throughout September, in the average 1.5 rainfall days, it receives 2mm (0.08") of precipitation. Throughout the year, in Lagoa do Sítio, there are 152.5 rainfall days, and 872mm (34.33") of precipitation is accumulated.

Daylight

In Lagoa do Sítio, the average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 05:46 and sunset at 17:45. On the last day of September, in Lagoa do Sítio, Brazil, sunrise is at 05:31 and sunset at 17:40 -03.

Sunshine

August and September, with an average of 9.9h of sunshine, are months with the most sunshine in Lagoa do Sítio.

UV index

The months with the highest UV index are September and October, with an average maximum UV index of 8. A UV Index reading of 8 to 10 represents a very high threat to health from exposure to the Sun's UV radiation for the average person.
Note: In September, the average maximum UV index of 8 translates into the following recommendations:
Always be cautious. Skin and eyes can be affected swiftly without protection. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.