August weather forecast
Vilhena, Brazil

The last month of the winter, August, is another tropical month in Vilhena, Brazil, with temperature in the range of an average low of 18.7°C (65.7°F) and an average high of 33.4°C (92.1°F).

Temperature

During August, Vilhena records an average high-temperature of a still tropical 33.4°C (92.1°F), marking a slight divergence from July's 30.7°C (87.3°F). Vilhena logs a substantial downturn to a refreshing 18.7°C (65.7°F) during August nights, a considerable shift from daytime highs.

Heat index

August's heat index is evaluated at a very hot 37°C (98.6°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

The least humid month in Vilhena is August, with an average relative humidity of 49%.

Rainfall

In Vilhena, in August, it is raining for 4.6 days, with typically 10mm (0.39") of accumulated precipitation. Throughout the year, there are 237.8 rainfall days, and 1557mm (61.3") of precipitation is accumulated.

Daylight

In Vilhena, Brazil, the average length of the day in August is 11h and 43min.
On the first day of August in Vilhena, sunrise is at 06:19 and sunset at 17:53. On the last day of the month, sunrise is at 06:04 and sunset at 17:56 -04.

Sunshine

The average sunshine in August in Vilhena is 7.2h.

UV index

August and September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 7 in August translates into the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.