August weather forecast
L'Observatoire, French Guiana

The last month of the summer, August, is another tropical month in L'Observatoire, French Guiana, with temperature in the range of an average high of 33°C (91.4°F) and an average low of 21.1°C (70°F).

Temperature

As August takes its course, L'Observatoire's average high-temperature registers at a still tropical 33°C (91.4°F), closely aligning with the preceding month. In L'Observatoire, the average nighttime temperature during August is an agreeable 21.1°C (70°F).

Heat index

The heat index value for August is estimated at a burning hot 48°C (118.4°F). Warning: Heat cramps and heat exhaustion are anticipated. Heatstroke is a risk with ongoing activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In August, the average relative humidity in L'Observatoire is 80%.

Rainfall

In August, the rain falls for 15.8 days. Throughout August, 43mm (1.69") of precipitation is accumulated. In L'Observatoire, French Guiana, during the entire year, the rain falls for 259.3 days and collects up to 898mm (35.35") of precipitation.

Daylight

The average length of the day in August is 12h and 16min.
On the first day of August in L'Observatoire, sunrise is at 06:32 and sunset at 18:51. On the last day of the month, sunrise is at 06:29 and sunset at 18:42 -03.

Sunshine

In August, the average sunshine is 8.8h.

UV index

The months with the highest UV index are July through November, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 7 in August transforms into the following instructions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.