August weather forecast
Bienvenue, French Guiana

As the drier part of the year continues into August, Bienvenue witnesses a substantial reduction in rainfall, reaching an average meager 60mm (2.36"). The city basks under an increase in sunshine, which is now at its highest for the year, illuminating the city for longer periods. The monthly average temperature reaches its peak, painting a picture of a warm, dry month. Wind speed continues its upward trend, providing a counterbalance to the rising temperature.

Temperature

The advent of August in Bienvenue presents an average high-temperature of a still tropical 32.3°C (90.1°F), maintaining a close correlation with the preceding month. August nights experience a consistent temperature drop to a pleasant 21.7°C (71.1°F).

Heat index

For August, the heat index is computed to be a burning hot 45°C (113°F). Take caution: Heat exhaustion and heat cramps are probable. Heatstroke may be imminent with ongoing effort.
Understanding the heat index involves considering values for shaded locales with light wind. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. 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 babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In Bienvenue, the average relative humidity in August is 80%.

Rainfall

In Bienvenue, French Guiana, in August, during 21.1 rainfall days, 60mm (2.36") of precipitation is typically accumulated. Throughout the year, there are 270.6 rainfall days, and 1131mm (44.53") of precipitation is accumulated.

Daylight

The average length of the day in August in Bienvenue is 12h and 13min.
On the first day of the month, sunrise is at 06:29 and sunset at 18:44. On the last day of August, in Bienvenue, French Guiana, sunrise is at 06:25 and sunset at 18:36 -03.

Sunshine

In Bienvenue, the average sunshine in August is 8.4h.

UV index

August through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In August, the UV index of 7 transforms into the following advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.