July weather forecast
Mana, French Guiana

The city of Mana in July experiences a slight uptick in temperatures, with the mercury reaching 30.6°C (87.1°F). The level of humidity drops but remains moderately high, creating a noticeably muggy ambiance. A decrease in rainfall days marks the month of July. A mostly cloudy sky serves as a daily sight, providing a shade to the town. As July transitions to August, a further escalation in temperature can be observed.

Temperature

Mana measures an average high-temperature of a tropical 30.6°C (87.1°F) in July, nearly consistent with the preceding month. The average low-temperature, in July, in Mana, is an agreeable 22.2°C (72°F).

Heat index

For most parts of July, the heat index is evaluated at a blisteringly hot 42°C (107.6°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', determines the feeling of heat when you account for the relative humidity. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly important for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in July in Mana is 86%.

Rainfall

In July, the rain falls for 24.5 days. Throughout July, 107mm (4.21") of precipitation is accumulated. Throughout the year, there are 253 rainfall days, and 878mm (34.57") of precipitation is accumulated.

Sea temperature

July and August, with an average sea temperature of 28.4°C (83.1°F), are months with the warmest seawater in Mana.
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and other activities, ensuring comfort and enjoyment for lengthened periods.

Daylight

In July, the average length of the day in Mana is 12h and 25min.
On the first day of the month, sunrise is at 06:25 and sunset at 18:52. On the last day of July, in Mana, sunrise is at 06:30 and sunset at 18:52 -03.

Sunshine

The average sunshine in July in Mana is 8h.

UV index

July through November, 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 health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 7 during July translates into the following recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Alert! Sand and water increase UV exposure due to their reflective properties.