August weather forecast
Açu, Brazil

The last month of the winter, August, is another tropical month in Açu, Brazil, with an average temperature ranging between max 33.8°C (92.8°F) and min 21.7°C (71.1°F).

Temperature

Açu signifies an average high-temperature of a still tropical 33.8°C (92.8°F) in August, closely mirroring the 32°C (89.6°F) of July. In August, Açu experiences a significant drop from daily zeniths to an average nighttime temperature of 21.7°C (71.1°F).

Heat index

The heat index value during August is appraised at a blistering 40°C (104°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In August, the average relative humidity in Açu is 57%.

Rainfall

In Açu, in August, during 4 rainfall days, 5mm (0.2") of precipitation is typically accumulated. In Açu, Brazil, during the entire year, the rain falls for 112.4 days and collects up to 381mm (15") of precipitation.

Daylight

In Açu, the average length of the day in August is 11h and 56min.
On the first day of August, sunrise is at 05:37 and sunset at 17:30. On the last day of the month, sunrise is at 05:27 and sunset at 17:27 -03.

Sunshine

The average sunshine in August in Açu is 9.5h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Açu are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In August, a daily maximum UV index of 7 leads to the following instructions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.