September weather forecast
Caçu, Brazil

The first month of the spring, September, is still a tropical month in Caçu, Brazil, with temperature in the range of an average high of 33.9°C (93°F) and an average low of 21.3°C (70.3°F).

Temperature

Caçu's warmest temperatures are experienced in September, with average high temperatures of 33.9°C (93°F) and lows of 21.3°C (70.3°F).

Heat index

The average heat index in September is estimated at a torrid 36°C (96.8°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. 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.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In Caçu, the average relative humidity in September is 42%.

Rainfall

In Caçu, during September, the rain falls for 7.5 days and regularly aggregates up to 37mm (1.46") of precipitation. Throughout the year, in Caçu, Brazil, there are 197.9 rainfall days, and 1210mm (47.64") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 0min.
On the first day of September, sunrise is at 06:31 and sunset at 18:17. On the last day of the month, sunrise is at 06:06 and sunset at 18:22 -03.

Sunshine

The average sunshine in September is 9.5h.

UV index

The months with the highest UV index in Caçu are August and September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high daily UV index of 7 during September translates into the following directions:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.