August weather forecast
São Sebastião do Tocantins, Brazil

August, the last month of the winter in São Sebastião do Tocantins, is another hot month, with temperature in the range of an average low of 20.1°C (68.2°F) and an average high of 34°C (93.2°F).

Temperature

The transition from July to August brings an average high-temperature of a still tropical 34°C (93.2°F), barely different from July's 31.7°C (89.1°F). Despite a stark disparity with daily highs, São Sebastião do Tocantins records an average nighttime temperature of 20.1°C (68.2°F) in August.

Heat index

For most parts of August, the heat index is evaluated at an extremely hot 41°C (105.8°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 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.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

August is the least humid month, with an average relative humidity of 57%.

Rainfall

The month with the least rainfall in São Sebastião do Tocantins is August, when the rain falls for 5.5 days and typically collects 8mm (0.31") of precipitation.

Daylight

In São Sebastião do Tocantins, the average length of the day in August is 11h and 57min.
On the first day of August in São Sebastião do Tocantins, sunrise is at 06:22 and sunset at 18:15. On the last day of the month, sunrise is at 06:12 and sunset at 18:13 -03.

Sunshine

In São Sebastião do Tocantins, the average sunshine in August is 9.7h.

UV index

The months with the highest UV index in São Sebastião do Tocantins are July through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 7 in August converts into the following recommendations:
Fend off overexposure. Sun protection is vital. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.