August weather forecast
Mana, French Guiana

August brings with it warm days in Mana, as the temperature climbs to 32°C (89.6°F). The month witnesses a decline in the number of rainy days as compared to those in July. A drop in relative humidity to 82% breaks the constant pattern of high humidity. With the onset of September, the city is about to experience its peak summer heat. Despite the high temperature, the sea is still a favorite spot for locals and tourists alike.

Temperature

Mana's August average high-temperature settles at a still hot 32°C (89.6°F), showing a near match with the preceding month. Mana reports a consistent average low-temperature of 22.3°C (72.1°F) throughout August nights.

Heat index

For most parts of August, the heat index is evaluated at a burning hot 45°C (113°F). Keep guard: Heat cramps and heat exhaustion are likely. Continued activity increases the risk of heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

The average relative humidity in August is 82%.

Rainfall

In Mana, French Guiana, in August, during 19 rainfall days, 66mm (2.6") of precipitation is typically accumulated. Throughout the year, there are 253 rainfall days, and 878mm (34.57") of precipitation is accumulated.

Sea temperature

The months with the warmest seawater are July and August, with an average sea temperature of 28.4°C (83.1°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is perceived as agreeably warm, making all water activities enjoyable without the risk of discomfort over lengthy durations.

Daylight

In August, the average length of the day in Mana, French Guiana, is 12h and 18min.
On the first day of the month, sunrise is at 06:30 and sunset at 18:52. On the last day of August, in Mana, sunrise is at 06:28 and sunset at 18:41 -03.

Sunshine

In August, the average sunshine in Mana is 8.7h.

UV index

The months with the highest UV index in Mana are July through November, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A maximum UV index of 7 in August translates into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Attention! UV radiation is ramped up when reflecting off sand and water surfaces.