September weather forecastDracena, Brazil

Weather in September

September, the first month of the spring in Dracena, is a tropical month, with temperature in the range of an average high of 31.7°C (89.1°F) and an average low of 19.1°C (66.4°F).

Temperature

The onset of September brings an average high-temperature of a tropical 31.7°C (89.1°F), nearly matching the August temperature. September nights see a notable contrast from daytime highs, with the nighttime temperature averaging at a refreshing 19.1°C (66.4°F).

Heat index

During September, the heat index is calculated to be a fiery hot 35°C (95°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In Dracena, the average relative humidity in September is 56%.

Rainfall

In Dracena, in September, it is raining for 8.8 days, with typically 47mm (1.85") of accumulated precipitation. In Dracena, during the entire year, the rain falls for 189.5 days and collects up to 1170mm (46.06") of precipitation.

Daylight

In September, the average length of the day is 11h and 59min.
On the first day of the month, sunrise is at 06:34 and sunset at 18:17. On the last day of September, sunrise is at 06:07 and sunset at 18:24 -03.

Sunshine

In Dracena, the average sunshine in September is 9.1h.

UV index

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.