September weather forecast
Chaval, Brazil

September, the first month of the spring in Chaval, is still a tropical month, with an average temperature fluctuating between 34.6°C (94.3°F) and 23.4°C (74.1°F).

Temperature

As Chaval welcomes September, the average high-temperature is noted at a still hot 34.6°C (94.3°F), closely aligning with the preceding month. Chaval's nights in September experience an average temperature drop to a warm 23.4°C (74.1°F).

Heat index

During September, the heat index is estimated at a blazing hot 45°C (113°F). Stay watchful: Heat exhaustion along with heat cramps are likely. Ongoing effort may cause heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
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. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

The months with the lowest humidity in Chaval are September and October, with an average relative humidity of 62%.

Rainfall

The month with the least rainfall in Chaval is September, when the rain falls for 2.5 days and typically collects 1mm (0.04") of precipitation.

Daylight

In September, the average length of the day is 12h and 5min.
On the first day of September, sunrise is at 05:43 and sunset at 17:46. On the last day of the month, sunrise is at 05:30 and sunset at 17:38 -03.

Sunshine

In September, the average sunshine in Chaval is 9.3h.

UV index

February through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: An average maximum UV index of 7 in September leads to these recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.