August weather forecast and climate
Brasília, Brazil

The last month of the winter, August, is another warm month in Brasília, Brazil, with average temperature varying between 15.9°C (60.6°F) and 28.3°C (82.9°F).

Temperature

In Brasília, the average high-temperature is practically the same as in July - a still warm 28.3°C (82.9°F). The average low-temperature, in Brasília, is 15.9°C (60.6°F).

Heat index

In August, the average heat index is appraised at 28.5°C (83.3°F). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', '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. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, differences in body mass, height, and shape, metabolic differences), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in August is 47%.

Rainfall

In Brasília, during August, the rain falls for 1.9 days and regularly aggregates up to 2mm (0.08") of precipitation. Throughout the year, there are 191.9 rainfall days, and 1159mm (45.63") of precipitation is accumulated.

Daylight

In August, the average length of the day is 11.6h.

Sunshine

The month with the most sunshine is August, with an average of 9.9h of sunshine.

UV index

Months with the highest UV index in Brasília are January, March, August through November, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV rays for the average person.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.