August weather forecast
Santa Isabel do Rio Negro, Brazil

August, the last month of the winter in Santa Isabel do Rio Negro, is another tropical month, with an average temperature ranging between max 32.8°C (91°F) and min 21.9°C (71.4°F).

Temperature

The advent of August denotes an average high-temperature of a still tropical 32.8°C (91°F), subtly different from July's 30.2°C (86.4°F). Santa Isabel do Rio Negro encounters an average low-temperature of 21.9°C (71.4°F) during August nights.

Heat index

The average heat index in August is estimated at a blazing hot 47°C (116.6°F). Keep on guard: Heat exhaustion and heat cramps are probable. Heatstroke is a possible danger with ongoing physical activity.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular importance for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In Santa Isabel do Rio Negro, the average relative humidity in August is 79%.

Rainfall

In Santa Isabel do Rio Negro, during August, the rain falls for 22.5 days and regularly aggregates up to 88mm (3.46") of precipitation. In Santa Isabel do Rio Negro, during the entire year, the rain falls for 308 days and collects up to 1836mm (72.28") of precipitation.

Daylight

In August, the average length of the day is 12h and 6min.
On the first day of August, sunrise is at 06:23 and sunset at 18:29. On the last day of the month, sunrise is at 06:16 and sunset at 18:23 -04.

Sunshine

The average sunshine in August is 8h.

UV index

July 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 exposure to the Sun's UV radiation for average individuals.
Note: In August, the average maximum UV index of 7 translates into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.