July weather forecast
Dardanelles, French Guiana

July in Dardanelles, French Guiana, is a tropical summer month, with an average temperature fluctuating between 21.3°C (70.3°F) and 30.3°C (86.5°F).

Temperature

July's onset sees an average high-temperature of a hot 30.3°C (86.5°F), exhibiting a slight fluctuation from the previous month. In the month of July, Dardanelles experiences an average low-temperature of 21.3°C (70.3°F).

Heat index

July's average heat index is evaluated at a blistering 41°C (105.8°F). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. 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 evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In Dardanelles, the average relative humidity in July is 86%.

Rainfall

In Dardanelles, in July, during 26.8 rainfall days, 99mm (3.9") 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 July in Dardanelles is 12h and 19min.
On the first day of July, sunrise is at 06:24 and sunset at 18:44. On the last day of the month, sunrise is at 06:28 and sunset at 18:45 -03.

Sunshine

The average sunshine in July in Dardanelles, French Guiana, is 7.4h.

UV index

January through July, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: In July, the average maximum UV index of 6 translates into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.