August weather forecastJoão Lisboa, Brazil

Weather in August

August, the last month of the winter in João Lisboa, is a sweltering month, with an average temperature varying between 35.3°C (95.5°F) and 21.1°C (70°F).

Temperature

With the onset of August, João Lisboa's average high-temperature clocks in at a very hot 35.3°C (95.5°F), showing a minor fluctuation from the previous month. João Lisboa's average low-temperature for the month of August denotes a significant decline from the daily high, recording at a pleasant 21.1°C (70°F).

Heat index

The heat index for August is computed to be a blistering 42°C (107.6°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. 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 calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

The months with the lowest humidity in João Lisboa are August and September, with an average relative humidity of 51%.

Rainfall

The month with the least rainfall is August, when the rain falls for 2.6 days and typically collects 2mm (0.08") of precipitation.

Daylight

The average length of the day in August is 11h and 56min.
On the first day of the month, sunrise is at 06:19 and sunset at 18:12. On the last day of August, in João Lisboa, sunrise is at 06:09 and sunset at 18:10 -03.

Sunshine

In João Lisboa, Brazil, the average sunshine in August is 9.8h.

UV index

April, May, July through October, 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 exposure to the Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 7 in August suggests the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.