August weather forecast
São Sebastião da Boa Vista, Brazil

The last month of the winter, August, is another tropical month in São Sebastião da Boa Vista, Brazil, with temperature in the range of an average low of 23°C (73.4°F) and an average high of 34.3°C (93.7°F).

Temperature

As August unfolds, the average high-temperature reaches a still hot 34.3°C (93.7°F), hinting at a slight fluctuation from the previous month. Throughout August, São Sebastião da Boa Vista registers a consistent average low-temperature of 23°C (73.4°F).

Heat index

During August, the heat index is estimated at a blazing hot 48°C (118.4°F). Note: Heat exhaustion and heat cramps are probable. Heatstroke can follow with prolonged activity.
When assessing, remember that heat index measurements are for light winds and shaded spots. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are quite important for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In August, the average relative humidity is 71%.

Rainfall

In São Sebastião da Boa Vista, in August, it is raining for 15.9 days, with typically 32mm (1.26") of accumulated precipitation. Throughout the year, in São Sebastião da Boa Vista, there are 285.2 rainfall days, and 1825mm (71.85") of precipitation is accumulated.

Daylight

The average length of the day in August is 12h and 4min.
On the first day of the month, sunrise is at 06:23 and sunset at 18:25. On the last day of August, in São Sebastião da Boa Vista, sunrise is at 06:15 and sunset at 18:20 -03.

Sunshine

In August, the average sunshine is 9.3h.

UV index

The months with the highest UV index in São Sebastião da Boa Vista are May through November, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: A maximum high UV index of 7 in August translates into the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.